diff --git a/.agents/phases/todo/99_kb_tree_table_and_back_nav/00_phase.md b/.agents/phases/complete/99_kb_tree_table_and_back_nav/00_phase.md
similarity index 100%
rename from .agents/phases/todo/99_kb_tree_table_and_back_nav/00_phase.md
rename to .agents/phases/complete/99_kb_tree_table_and_back_nav/00_phase.md
diff --git a/.agents/phases/todo/99_kb_tree_table_and_back_nav/01_description_line_clamp.md b/.agents/phases/complete/99_kb_tree_table_and_back_nav/01_description_line_clamp.md
similarity index 100%
rename from .agents/phases/todo/99_kb_tree_table_and_back_nav/01_description_line_clamp.md
rename to .agents/phases/complete/99_kb_tree_table_and_back_nav/01_description_line_clamp.md
diff --git a/.agents/phases/todo/99_kb_tree_table_and_back_nav/02_breadcrumb_history_nav.md b/.agents/phases/complete/99_kb_tree_table_and_back_nav/02_breadcrumb_history_nav.md
similarity index 100%
rename from .agents/phases/todo/99_kb_tree_table_and_back_nav/02_breadcrumb_history_nav.md
rename to .agents/phases/complete/99_kb_tree_table_and_back_nav/02_breadcrumb_history_nav.md
diff --git a/.agents/phases/todo/99_kb_tree_table_and_back_nav/03_e2e_tree_nav.md b/.agents/phases/complete/99_kb_tree_table_and_back_nav/03_e2e_tree_nav.md
similarity index 100%
rename from .agents/phases/todo/99_kb_tree_table_and_back_nav/03_e2e_tree_nav.md
rename to .agents/phases/complete/99_kb_tree_table_and_back_nav/03_e2e_tree_nav.md
diff --git a/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__00_phase.a1.err b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__00_phase.a1.err
new file mode 100644
index 0000000..e69de29
diff --git a/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__00_phase.a1.md b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__00_phase.a1.md
new file mode 100644
index 0000000..9584edf
--- /dev/null
+++ b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__00_phase.a1.md
@@ -0,0 +1,13 @@
+All verification is complete and green. Final report:
+
+**Phase 99 — final verification pass (all 3 tasks already in `complete/`)**
+
+- Verified the one-line Description clamp: `.kb-desc-cell` flex wrapper + `.kb-desc-text` ellipsis triad + `nowrap` column + in-cell Edit button + hover `title` + untouched level block (source diffs match D1; unit pins present)
+- Verified the back-button breadcrumb nav: `applyTarget(target, push)` state-only `pushState`, no-duplicate gate, popstate adopt/reset, `bor:view-refresh` alignment before `loadTree()`, anonymous gate listener-free, router.js untouched (D2)
+- `uv run pytest --cov=app`: **2180 passed**, coverage **99%** (>90% gate)
+- `uv run ruff check .`: clean; `uv run pyright`: **0 errors, 0 warnings**
+- `uv run pytest tests/e2e/test_kb_tree_nav.py -v --no-cov` (isolated, DB up): **4/4 passed** (back-walk, jump-then-back, fresh-nav/active-reclick, measured clamp incl. row-height parity ±4px, computed styles, full text in DOM/title/level block)
+- Regression suites isolated: `test_kb_tree.py` 8✓, `test_ls_tree_drilldown.py` 3✓, `test_navbar_refresh.py` 7✓, plus `test_sync_summary_visibility.py` 3✓ (marker pin updated to `kb-desc-text kb-summary-pending` — the sanctioned class-pair change) and `test_edit_summaries.py` 4✓
+- Criteria 1–4: **met** (each as above). Criterion 5 (atomic commit): left to the harness per executor rules — no `git add`/`commit` run; all changes left in the working tree
+- No defects found in prior phases; no deviations. Stray `__pycache__/test_zz_smoke_tree_ui.*.pyc` is a leftover (no `.py` on disk) — inert, not touched
+- Next pending phase: **none** — `todo/` will be empty once the harness moves this phase
diff --git a/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__00_phase.a1.validate b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__00_phase.a1.validate
new file mode 100644
index 0000000..f057f37
--- /dev/null
+++ b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__00_phase.a1.validate
@@ -0,0 +1,98 @@
+........................................................................ [ 3%]
+........................................................................ [ 6%]
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+........................................................................ [ 99%]
+.................... [100%]
+=============================== warnings summary ===============================
+.venv/lib/python3.13/site-packages/fastapi/testclient.py:1
+ /var/home/ducoterra/Projects/Personal/brain_of_reese/.venv/lib/python3.13/site-packages/fastapi/testclient.py:1: StarletteDeprecationWarning: Using `httpx` with `starlette.testclient` is deprecated; install `httpx2` instead.
+ from starlette.testclient import TestClient as TestClient # noqa
+
+-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
+================================ tests coverage ================================
+_______________ coverage: platform linux, python 3.13.13-final-0 _______________
+
+Name Stmts Miss Cover
+--------------------------------------------------
+app/__init__.py 1 0 100%
+app/api/__init__.py 0 0 100%
+app/api/auth.py 52 0 100%
+app/api/chat.py 181 0 100%
+app/api/chats.py 110 0 100%
+app/api/config.py 13 0 100%
+app/api/doc_drafts.py 94 0 100%
+app/api/docs.py 134 1 99%
+app/api/git_sources.py 232 0 100%
+app/api/health.py 10 0 100%
+app/api/steering.py 42 0 100%
+app/api/suggestions.py 33 0 100%
+app/api/sync.py 137 0 100%
+app/api/tokens.py 40 0 100%
+app/api/ui_settings.py 55 0 100%
+app/config.py 140 0 100%
+app/core/__init__.py 0 0 100%
+app/core/auth.py 45 0 100%
+app/core/caching.py 124 0 100%
+app/core/debugging.py 29 2 93%
+app/core/docs_push.py 39 0 100%
+app/core/errors.py 5 0 100%
+app/core/logging.py 13 0 100%
+app/core/rate_limit.py 44 0 100%
+app/core/security_headers.py 20 0 100%
+app/core/theming.py 38 0 100%
+app/core/tokens.py 44 0 100%
+app/db.py 21 0 100%
+app/main.py 66 0 100%
+app/models.py 126 0 100%
+app/rag/__init__.py 0 0 100%
+app/rag/agent.py 316 1 99%
+app/rag/archive_upload.py 128 0 100%
+app/rag/chunker.py 206 4 98%
+app/rag/folder_summaries.py 123 0 100%
+app/rag/git_sources.py 14 0 100%
+app/rag/importer.py 200 3 98%
+app/rag/llm.py 243 1 99%
+app/rag/overview.py 71 0 100%
+app/rag/prompts.py 88 0 100%
+app/rag/retriever.py 150 3 98%
+app/rag/scaffolding.py 55 0 100%
+app/rag/source_removal.py 41 0 100%
+app/rag/sources_meta.py 16 0 100%
+app/rag/suggestions.py 27 0 100%
+app/rag/summarizer.py 24 0 100%
+app/schemas.py 313 0 100%
+--------------------------------------------------
+TOTAL 3903 15 99%
+coverage gate: app/ 99% (>90%) OK
+All checks passed!
+0 errors, 0 warnings, 0 informations
+WARNING: there is a new pyright version available (v1.1.411 -> v1.1.414).
+Please install the new version or set PYRIGHT_PYTHON_FORCE_VERSION to `latest`
+
+validation OK
diff --git a/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__01_description_line_clamp.a1.err b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__01_description_line_clamp.a1.err
new file mode 100644
index 0000000..e69de29
diff --git a/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__01_description_line_clamp.a1.md b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__01_description_line_clamp.a1.md
new file mode 100644
index 0000000..4994966
--- /dev/null
+++ b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__01_description_line_clamp.a1.md
@@ -0,0 +1,17 @@
+Task 01 complete — all gates green.
+
+**Implemented**
+- `sources.js` `makeDescCell`: the Description `
` now holds ONE `div.kb-desc-cell` flex wrapper — text `` (flexes + ellipsizes) + the always-present Edit button; stored text always carries `title` = full text (D1 hover escape hatch); the phase-98 pending marker keeps its own D4 title (`classList.add` — base class survives); the editor's row `container` is now the wrapper (level block's `.kb-level-body` untouched)
+- `closeEditor`: toggles only `kb-summary-pending` (base classes survive the swap) and re-derives the clamped span's `title` from the stored text — a stale pre-edit title cannot survive a save; the unclamped level ` ` keeps its no-title behavior
+- `styles.css`: `td:nth-child(3)` → `white-space: nowrap` (budget/widths kept), new `.kb-desc-cell` (flex + 0.4rem gap) and `.kb-desc-text` (ellipsis triad + `min-width: 0`) rules, button `margin-left` removed (gap replaces it; level rule kept), `.kb-desc-cell .kb-summary-editor` flex-fill for the open editor; `.kb-level p` and no-new-hue invariant untouched; module docstring records the D1 contract
+- Unit pins: updated the restructured-cell pins + 4 new tests (wrapper structure, hover-title rules, closeEditor title re-derivation, CSS declarations)
+- Fixed two exact `to_have_class` pins in `test_sync_summary_visibility.py` broken by the additive base class (the phase-03 "fix-only-broken-pins" case, surfaced early)
+
+**Results**
+- `uv run pytest --cov=app --cov-report=term` → 2176 passed, `app/` TOTAL **99%** (>90%)
+- `uv run ruff check .` → clean; `uv run pyright` → 0 errors, 0 warnings
+- E2E in isolation (`--no-cov`): `test_kb_tree.py` 8 passed, `test_sync_summary_visibility.py` 3 passed, `test_ls_tree_drilldown.py` 3 passed, `test_navbar_refresh.py` 7 passed
+
+**Decisions**: hover title is re-derived in `closeEditor` (not just `makeDescCell`) to prevent stale titles after save/cancel; no E2E file added here (task 03's mandate); no commit made (harness commits per phase).
+
+**Next pending task**: `.agents/phases/todo/99_kb_tree_table_and_back_nav/02_breadcrumb_history_nav.md`
diff --git a/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__01_description_line_clamp.a1.validate b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__01_description_line_clamp.a1.validate
new file mode 100644
index 0000000..b52be95
--- /dev/null
+++ b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__01_description_line_clamp.a1.validate
@@ -0,0 +1,98 @@
+........................................................................ [ 3%]
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+........................................................................ [ 92%]
+........................................................................ [ 95%]
+........................................................................ [ 99%]
+................ [100%]
+=============================== warnings summary ===============================
+.venv/lib/python3.13/site-packages/fastapi/testclient.py:1
+ /var/home/ducoterra/Projects/Personal/brain_of_reese/.venv/lib/python3.13/site-packages/fastapi/testclient.py:1: StarletteDeprecationWarning: Using `httpx` with `starlette.testclient` is deprecated; install `httpx2` instead.
+ from starlette.testclient import TestClient as TestClient # noqa
+
+-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
+================================ tests coverage ================================
+_______________ coverage: platform linux, python 3.13.13-final-0 _______________
+
+Name Stmts Miss Cover
+--------------------------------------------------
+app/__init__.py 1 0 100%
+app/api/__init__.py 0 0 100%
+app/api/auth.py 52 0 100%
+app/api/chat.py 181 0 100%
+app/api/chats.py 110 0 100%
+app/api/config.py 13 0 100%
+app/api/doc_drafts.py 94 0 100%
+app/api/docs.py 134 1 99%
+app/api/git_sources.py 232 0 100%
+app/api/health.py 10 0 100%
+app/api/steering.py 42 0 100%
+app/api/suggestions.py 33 0 100%
+app/api/sync.py 137 0 100%
+app/api/tokens.py 40 0 100%
+app/api/ui_settings.py 55 0 100%
+app/config.py 140 0 100%
+app/core/__init__.py 0 0 100%
+app/core/auth.py 45 0 100%
+app/core/caching.py 124 0 100%
+app/core/debugging.py 29 2 93%
+app/core/docs_push.py 39 0 100%
+app/core/errors.py 5 0 100%
+app/core/logging.py 13 0 100%
+app/core/rate_limit.py 44 0 100%
+app/core/security_headers.py 20 0 100%
+app/core/theming.py 38 0 100%
+app/core/tokens.py 44 0 100%
+app/db.py 21 0 100%
+app/main.py 66 0 100%
+app/models.py 126 0 100%
+app/rag/__init__.py 0 0 100%
+app/rag/agent.py 316 1 99%
+app/rag/archive_upload.py 128 0 100%
+app/rag/chunker.py 206 4 98%
+app/rag/folder_summaries.py 123 0 100%
+app/rag/git_sources.py 14 0 100%
+app/rag/importer.py 200 3 98%
+app/rag/llm.py 243 1 99%
+app/rag/overview.py 71 0 100%
+app/rag/prompts.py 88 0 100%
+app/rag/retriever.py 150 3 98%
+app/rag/scaffolding.py 55 0 100%
+app/rag/source_removal.py 41 0 100%
+app/rag/sources_meta.py 16 0 100%
+app/rag/suggestions.py 27 0 100%
+app/rag/summarizer.py 24 0 100%
+app/schemas.py 313 0 100%
+--------------------------------------------------
+TOTAL 3903 15 99%
+coverage gate: app/ 99% (>90%) OK
+All checks passed!
+0 errors, 0 warnings, 0 informations
+WARNING: there is a new pyright version available (v1.1.411 -> v1.1.414).
+Please install the new version or set PYRIGHT_PYTHON_FORCE_VERSION to `latest`
+
+validation OK
diff --git a/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__02_breadcrumb_history_nav.a1.err b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__02_breadcrumb_history_nav.a1.err
new file mode 100644
index 0000000..e69de29
diff --git a/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__02_breadcrumb_history_nav.a1.md b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__02_breadcrumb_history_nav.a1.md
new file mode 100644
index 0000000..4d3f770
--- /dev/null
+++ b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__02_breadcrumb_history_nav.a1.md
@@ -0,0 +1,20 @@
+All green. Final report:
+
+## Task 02 complete — back button walks the breadcrumb (drill state = history state)
+
+**Implemented** (per D2/D3 in `00_phase.md`):
+- `frontend/assets/sources.js`: `goTo` → `applyTarget(target, push)` — every drill (source row, folder link, breadcrumb segment) first pushes a **state-only** entry `history.pushState({ view: "rag", kb: target }, "")` (URL stays put, no third arg), skipping the push when the target equals `current` (no duplicate entries)
+- `window popstate` listener (armed once, admin branch only): adopts `event.state.kb` via the no-push variant; a `kb`-less entry (boot/router/foreign) resets the drill to the top level
+- `bor:view-refresh` listener: aligns `current` with `history.state` (adopt kb / reset to top) **before** `loadTree()` — fresh nav visit → top, active-link re-click → drill survives
+- No pushState on boot; `resetVanishedLocation` and `router.js` untouched; module docstring gained the D2 contract section
+- `tests/unit/test_kb_tree_ui.py`: replaced the stale client-side-only pin with the state-only push/duplicate-skip pin; 4 new tests (popstate adopt/reset, refresh alignment, anonymous installs no listeners, docstring)
+- `tests/unit/test_frontend_router.py`: fixed the shared `_pin_refresh_listener` helper (slices to the listener's `});` close — the RAG listener became a block arrow) and the RAG pin (broken only by this additive change; asserted behavior unchanged)
+
+**Gates (all green, final state):**
+- `uv run pytest --cov=app --cov-report=term` → 2180 passed, TOTAL 99% (>90%)
+- `uv run ruff check .` → clean; `uv run pyright` → 0 errors, 0 warnings
+- Regression E2E in isolation (`--no-cov`): `test_navbar_refresh.py` 7 passed, `test_kb_tree.py` 8 passed, `test_ls_tree_drilldown.py` 3 passed
+
+**Notes:** no deviations from D2; no E2E file added (task 03 owns the browser proof + atomic commit). No defects found in prior work — the one broken pin was this task's own additive change.
+
+**Next pending task:** `03_e2e_tree_nav.md` (`tests/e2e/test_kb_tree_nav.py` + regression sweep + atomic commit).
diff --git a/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__02_breadcrumb_history_nav.a1.validate b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__02_breadcrumb_history_nav.a1.validate
new file mode 100644
index 0000000..f057f37
--- /dev/null
+++ b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__02_breadcrumb_history_nav.a1.validate
@@ -0,0 +1,98 @@
+........................................................................ [ 3%]
+........................................................................ [ 6%]
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+........................................................................ [ 89%]
+........................................................................ [ 92%]
+........................................................................ [ 95%]
+........................................................................ [ 99%]
+.................... [100%]
+=============================== warnings summary ===============================
+.venv/lib/python3.13/site-packages/fastapi/testclient.py:1
+ /var/home/ducoterra/Projects/Personal/brain_of_reese/.venv/lib/python3.13/site-packages/fastapi/testclient.py:1: StarletteDeprecationWarning: Using `httpx` with `starlette.testclient` is deprecated; install `httpx2` instead.
+ from starlette.testclient import TestClient as TestClient # noqa
+
+-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
+================================ tests coverage ================================
+_______________ coverage: platform linux, python 3.13.13-final-0 _______________
+
+Name Stmts Miss Cover
+--------------------------------------------------
+app/__init__.py 1 0 100%
+app/api/__init__.py 0 0 100%
+app/api/auth.py 52 0 100%
+app/api/chat.py 181 0 100%
+app/api/chats.py 110 0 100%
+app/api/config.py 13 0 100%
+app/api/doc_drafts.py 94 0 100%
+app/api/docs.py 134 1 99%
+app/api/git_sources.py 232 0 100%
+app/api/health.py 10 0 100%
+app/api/steering.py 42 0 100%
+app/api/suggestions.py 33 0 100%
+app/api/sync.py 137 0 100%
+app/api/tokens.py 40 0 100%
+app/api/ui_settings.py 55 0 100%
+app/config.py 140 0 100%
+app/core/__init__.py 0 0 100%
+app/core/auth.py 45 0 100%
+app/core/caching.py 124 0 100%
+app/core/debugging.py 29 2 93%
+app/core/docs_push.py 39 0 100%
+app/core/errors.py 5 0 100%
+app/core/logging.py 13 0 100%
+app/core/rate_limit.py 44 0 100%
+app/core/security_headers.py 20 0 100%
+app/core/theming.py 38 0 100%
+app/core/tokens.py 44 0 100%
+app/db.py 21 0 100%
+app/main.py 66 0 100%
+app/models.py 126 0 100%
+app/rag/__init__.py 0 0 100%
+app/rag/agent.py 316 1 99%
+app/rag/archive_upload.py 128 0 100%
+app/rag/chunker.py 206 4 98%
+app/rag/folder_summaries.py 123 0 100%
+app/rag/git_sources.py 14 0 100%
+app/rag/importer.py 200 3 98%
+app/rag/llm.py 243 1 99%
+app/rag/overview.py 71 0 100%
+app/rag/prompts.py 88 0 100%
+app/rag/retriever.py 150 3 98%
+app/rag/scaffolding.py 55 0 100%
+app/rag/source_removal.py 41 0 100%
+app/rag/sources_meta.py 16 0 100%
+app/rag/suggestions.py 27 0 100%
+app/rag/summarizer.py 24 0 100%
+app/schemas.py 313 0 100%
+--------------------------------------------------
+TOTAL 3903 15 99%
+coverage gate: app/ 99% (>90%) OK
+All checks passed!
+0 errors, 0 warnings, 0 informations
+WARNING: there is a new pyright version available (v1.1.411 -> v1.1.414).
+Please install the new version or set PYRIGHT_PYTHON_FORCE_VERSION to `latest`
+
+validation OK
diff --git a/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__03_e2e_tree_nav.a1.err b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__03_e2e_tree_nav.a1.err
new file mode 100644
index 0000000..e69de29
diff --git a/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__03_e2e_tree_nav.a1.md b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__03_e2e_tree_nav.a1.md
new file mode 100644
index 0000000..1410c13
--- /dev/null
+++ b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__03_e2e_tree_nav.a1.md
@@ -0,0 +1,21 @@
+Task 03 complete. All gates green.
+
+**Implemented**
+- `tests/e2e/test_kb_tree_nav.py` — phase-99's dedicated A16 E2E suite (4 tests, mock-only, per-module app on port 8144, nested `alpha/one/two` + `alpha/three` fixture KB seeded via API + real sync):
+ - `test_back_button_walks_the_breadcrumb` — full drill chain → Back pops one level/press (two→one→root→top→CHAT view), Forward replays the whole chain; URL stays `/sources.html` on all state-only entries
+ - `test_breadcrumb_jump_then_back` — `Knowledge base` crumb jump pushes an entry; Back returns to the jump's origin
+ - `test_fresh_nav_visit_starts_at_the_top` — fresh RAG nav visit resets to top (D2 alignment); active-link re-click (no pushState, `history.length` pinned) keeps the drill
+ - `test_description_cell_clamps_to_one_line` — 470-char manual description via `PATCH /api/folders/summary`: row `td` height = short row's (±4 px), computed `ellipsis`+`nowrap`, full text in `title`/DOM, Edit button measured in-cell, `#kb-level-summary` shows full unclamped text
+- Module-scoped autouse cleanup removes the temp source's documents/chunks/folder_summaries/git_sources rows (verified: shared DB empty after the run)
+
+**Results (exact commands)**
+- `uv run pytest tests/e2e/test_kb_tree_nav.py -v --no-cov` → 4 passed (twice, incl. after the sweep)
+- `uv run pytest tests/e2e/test_kb_tree.py -v --no-cov` → 8 passed · `test_ls_tree_drilldown.py` → 3 passed · `test_navbar_refresh.py` → 7 passed (all in isolation; no pin fixes needed)
+- `uv run pytest --cov=app --cov-report=term-missing` → 2180 passed, `app/` coverage 99% (>90%)
+- `uv run ruff check . && uv run pyright` → All checks passed / 0 errors, 0 warnings
+
+**Decisions/deviations**
+- No commit and no phase-dir move made — per harness rules the harness makes the one atomic `--no-gpg-sign` commit and moves task files (overrides the task file's commit step)
+- No defects found in tasks 01/02 (baseline was fully green)
+
+**Next pending task:** none — 03 was the final task of phase 99.
diff --git a/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__03_e2e_tree_nav.a1.validate b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__03_e2e_tree_nav.a1.validate
new file mode 100644
index 0000000..f057f37
--- /dev/null
+++ b/.agents/reports/99_kb_tree_table_and_back_nav/99_kb_tree_table_and_back_nav__03_e2e_tree_nav.a1.validate
@@ -0,0 +1,98 @@
+........................................................................ [ 3%]
+........................................................................ [ 6%]
+........................................................................ [ 9%]
+........................................................................ [ 13%]
+........................................................................ [ 16%]
+........................................................................ [ 19%]
+........................................................................ [ 23%]
+........................................................................ [ 26%]
+........................................................................ [ 29%]
+........................................................................ [ 33%]
+........................................................................ [ 36%]
+........................................................................ [ 39%]
+........................................................................ [ 42%]
+........................................................................ [ 46%]
+........................................................................ [ 49%]
+........................................................................ [ 52%]
+........................................................................ [ 56%]
+........................................................................ [ 59%]
+........................................................................ [ 62%]
+........................................................................ [ 66%]
+........................................................................ [ 69%]
+........................................................................ [ 72%]
+........................................................................ [ 75%]
+........................................................................ [ 79%]
+........................................................................ [ 82%]
+........................................................................ [ 85%]
+........................................................................ [ 89%]
+........................................................................ [ 92%]
+........................................................................ [ 95%]
+........................................................................ [ 99%]
+.................... [100%]
+=============================== warnings summary ===============================
+.venv/lib/python3.13/site-packages/fastapi/testclient.py:1
+ /var/home/ducoterra/Projects/Personal/brain_of_reese/.venv/lib/python3.13/site-packages/fastapi/testclient.py:1: StarletteDeprecationWarning: Using `httpx` with `starlette.testclient` is deprecated; install `httpx2` instead.
+ from starlette.testclient import TestClient as TestClient # noqa
+
+-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
+================================ tests coverage ================================
+_______________ coverage: platform linux, python 3.13.13-final-0 _______________
+
+Name Stmts Miss Cover
+--------------------------------------------------
+app/__init__.py 1 0 100%
+app/api/__init__.py 0 0 100%
+app/api/auth.py 52 0 100%
+app/api/chat.py 181 0 100%
+app/api/chats.py 110 0 100%
+app/api/config.py 13 0 100%
+app/api/doc_drafts.py 94 0 100%
+app/api/docs.py 134 1 99%
+app/api/git_sources.py 232 0 100%
+app/api/health.py 10 0 100%
+app/api/steering.py 42 0 100%
+app/api/suggestions.py 33 0 100%
+app/api/sync.py 137 0 100%
+app/api/tokens.py 40 0 100%
+app/api/ui_settings.py 55 0 100%
+app/config.py 140 0 100%
+app/core/__init__.py 0 0 100%
+app/core/auth.py 45 0 100%
+app/core/caching.py 124 0 100%
+app/core/debugging.py 29 2 93%
+app/core/docs_push.py 39 0 100%
+app/core/errors.py 5 0 100%
+app/core/logging.py 13 0 100%
+app/core/rate_limit.py 44 0 100%
+app/core/security_headers.py 20 0 100%
+app/core/theming.py 38 0 100%
+app/core/tokens.py 44 0 100%
+app/db.py 21 0 100%
+app/main.py 66 0 100%
+app/models.py 126 0 100%
+app/rag/__init__.py 0 0 100%
+app/rag/agent.py 316 1 99%
+app/rag/archive_upload.py 128 0 100%
+app/rag/chunker.py 206 4 98%
+app/rag/folder_summaries.py 123 0 100%
+app/rag/git_sources.py 14 0 100%
+app/rag/importer.py 200 3 98%
+app/rag/llm.py 243 1 99%
+app/rag/overview.py 71 0 100%
+app/rag/prompts.py 88 0 100%
+app/rag/retriever.py 150 3 98%
+app/rag/scaffolding.py 55 0 100%
+app/rag/source_removal.py 41 0 100%
+app/rag/sources_meta.py 16 0 100%
+app/rag/suggestions.py 27 0 100%
+app/rag/summarizer.py 24 0 100%
+app/schemas.py 313 0 100%
+--------------------------------------------------
+TOTAL 3903 15 99%
+coverage gate: app/ 99% (>90%) OK
+All checks passed!
+0 errors, 0 warnings, 0 informations
+WARNING: there is a new pyright version available (v1.1.411 -> v1.1.414).
+Please install the new version or set PYRIGHT_PYTHON_FORCE_VERSION to `latest`
+
+validation OK
diff --git a/frontend/assets/sources.js b/frontend/assets/sources.js
index 3ebe7bd..6a5b6ec 100644
--- a/frontend/assets/sources.js
+++ b/frontend/assets/sources.js
@@ -203,6 +203,65 @@
* surface passes its pending copy via pendingText — the row's
* "Summary pending" marker, the level's D4 note — and its
* tooltip via pendingTitle, the row only).
+ *
+ * Phase 99 (task 01, D1) — the ONE-LINE Description clamp: the
+ * owner's long stored descriptions no longer stretch the catalog
+ * rows. A row's Description cell is now ONE flex wrapper
+ * (`.kb-desc-cell` — inside the | , which gains no new class) holding
+ * the text span (`.kb-desc-text` — flex: 1 1 auto + min-width: 0 (the
+ * flex item may shrink), overflow: hidden + text-overflow: ellipsis +
+ * white-space: nowrap: the first line that fits, ellipsized — the row
+ * height is ONE line, independent of the description's length) and the
+ * ALWAYS-present Edit button (`.kb-summary-edit`, flex: 0 0 auto — it
+ * never wraps to a second line; its spacing comes from the wrapper's
+ * gap, its old margin-left is gone). The clamp is VISUAL only: the
+ * full text stays in the DOM (the accessible name is unchanged) and
+ * rides the span's title (the hover escape hatch, the house pattern) —
+ * set for real description text whenever non-empty; the phase-98
+ * marker keeps its OWN D4 title (never overridden), the empty cell
+ * carries none. The editor's open/close swaps happen INSIDE the
+ * wrapper (wireDescriptionEdit's row container IS the wrapper — the
+ * | always keeps it; the level block's container stays
+ * .kb-level-body), and closeEditor toggles ONLY the
+ * kb-summary-pending class (the base classes survive) while re-deriving
+ * the clamped span's title from the stored text (a stale pre-edit
+ * title cannot survive a save). The level block (`.kb-level p`) keeps
+ * the FULL unclamped description — the escape hatch at the top when
+ * you click in.
+ *
+ * Phase 99 (task 02, D2) — the browser back/forward walks the
+ * breadcrumb: the drill state IS the history state. Every user-
+ * initiated drill (source-row click, folder-link click, breadcrumb-
+ * segment click — all through goTo) goes through applyTarget(target,
+ * true): when the target DIFFERS from the current level, it FIRST
+ * pushes a STATE-ONLY entry — history.pushState({ view: "rag", kb:
+ * target }, "") — then sets current + re-renders. The push is the
+ * STATE only: the second arg is "" and there is no third — the URL
+ * STAYS PUT (no new route, the phase-76 deep-link surface is
+ * untouched; the shell's pathname is the only route contract). A
+ * re-click of the current level pushes NOTHING (no duplicate history
+ * entries). Back/forward: the window popstate (armed ONCE at mount,
+ * admin branch only — the anonymous gate installs no listeners) ADOPTS
+ * the popped entry's state.kb via the no-push variant (applyTarget(kb,
+ * false) — the browser owns its own entries, so adopt/reset never
+ * push); an entry WITHOUT a kb (the boot entry, the router's view
+ * entries, any foreign state) RESETS the drill to the TOP level
+ * (applyTarget({ source: null, folder: null }, false)). Back at the
+ * top level pops the router's view entry — the view leaves, exactly
+ * as today (the router's pathname-based switch, UNCHANGED). The
+ * re-show (bor:view-refresh) aligns the same way BEFORE the re-fetch:
+ * a kb-carrying top entry (the active-link re-click pushed NOTHING —
+ * the drilled entry is still on top) KEEPS the drill; a kb-less entry
+ * (a fresh nav visit) starts at the top level. Boot pushes NOTHING
+ * (the browser's own entry is the base — the phase-76 boot contract),
+ * and the never-stale resetVanishedLocation is UNCHANGED (it resets
+ * current WITHOUT pushing when a re-fetch finds the level gone — it
+ * follows whatever the history state says; no new entry). The router
+ * module is UNTOUCHED: its popstate reads the pathname only, and a
+ * state-only push never changes it (so rag-internal entries never
+ * trigger a view switch; for a foreign entry the router has already
+ * switched views, and this listener's render of the now-hidden view
+ * is harmless).
*/
import { fetchIsAdmin } from "./header.js";
@@ -235,7 +294,8 @@ function mkBtn(cls, label) {
}
/* The shared description editor. `container` holds ONLY the
- * description UI (the row's | , or the level block's .kb-level-body)
+ * description UI (the row cell's .kb-desc-cell wrapper — Phase 99
+ * (task 01) — or the level block's .kb-level-body)
* — the swap is a bare replaceChildren on it, so any persistent
* sibling (the level's ) is untouched. `getTarget()` returns the
* current { node, source, folder } at open/save time: a row's is a
@@ -282,16 +342,25 @@ function wireDescriptionEdit({
* the pre-edit state, including the marker); neither → the empty
* text. The Edit button is available again. A cleared node empties
* the text and, for the level block, hides the whole block via
- * onCleared. */
+ * onCleared.
+ * Phase 99 (task 01): the class line toggles ONLY kb-summary-pending
+ * (the base classes survive — the row's span keeps .kb-desc-text, the
+ * clamp; the level's keeps none), and the CLAMPED row span's
+ * title is re-derived from the stored text (the D1 hover escape hatch
+ * — a stale pre-edit title cannot survive a save; the level's is
+ * unclamped — it shows the full text and keeps its no-title
+ * behavior). */
function closeEditor(message) {
const target = getTarget();
const node = target ? target.node : null;
const stored = node && typeof node.summary === "string" ? node.summary : "";
const pending = node !== null && stored === "" && node.summary_pending;
const value = pending && pendingText ? pendingText : stored;
- textEl.className = pending ? "kb-summary-pending" : "";
+ textEl.classList.toggle("kb-summary-pending", pending);
if (pending) {
if (pendingTitle) textEl.title = pendingTitle;
+ } else if (stored && textEl.classList.contains("kb-desc-text")) {
+ textEl.title = stored; // D1: full text on hover — the clamp is visual only
} else {
textEl.removeAttribute("title");
}
@@ -387,30 +456,48 @@ function wireDescriptionEdit({
* the "Summary pending" text + the D4 title; text + color, never color
* alone), and the empty cell (neither — the ls rule, unchanged). The
* Edit button is UNCHANGED in all three (a manual save creates the row
- * and clears the marker in place — the editor's success path). */
+ * and clears the marker in place — the editor's success path).
+ * Phase 99 (task 01, D1): the cell is ONE flex row — the | holds a
+ * single `div.kb-desc-cell` wrapper with the text span (`.kb-desc-text`
+ * — flexes + ellipsizes, so the row height is ONE line, independent of
+ * the description's length) and the Edit button (`.kb-summary-edit` —
+ * flex: 0 0 auto, it never wraps). The clamp is VISUAL only: the full
+ * text stays in the DOM and rides the span's title (the hover escape
+ * hatch, set for real description text whenever non-empty — the marker
+ * keeps its OWN D4 title, the empty cell carries none). The editor's
+ * open/close swaps happen INSIDE the wrapper (the container is the
+ * wrapper — the | always keeps it). */
function makeDescCell(node, source, folder, label) {
const td = document.createElement("td");
+ /* Phase 99 (task 01, D1): the ONE flex wrapper — the text flexes +
+ * ellipsizes, the button stays fixed (see the docstring above). */
+ const wrap = document.createElement("div");
+ wrap.className = "kb-desc-cell";
const text = document.createElement("span");
+ text.className = "kb-desc-text";
if (node && node.summary) {
text.textContent = node.summary; // stored description — text node, never innerHTML
+ text.title = node.summary; // full text on hover — the clamp is visual only (D1)
} else if (node && node.summary_pending) {
- // Phase 98 (D4): the summary is due but not stored yet — the marker.
- text.className = "kb-summary-pending";
+ // Phase 98 (D4): the summary is due but not stored yet — the marker
+ // keeps its OWN title (the hover rule never overrides it).
+ text.classList.add("kb-summary-pending");
text.textContent = "Summary pending";
text.title = "No stored description yet — the next sync will generate one.";
} else {
- text.textContent = ""; // neither stored nor pending — the empty cell (the ls rule)
+ text.textContent = ""; // neither stored nor pending — the empty cell (the ls rule, no title)
}
const btn = document.createElement("button");
btn.type = "button";
btn.className = "kb-summary-edit";
btn.textContent = "Edit";
btn.setAttribute("aria-label", `Edit description: ${label}`);
- td.append(text, btn);
+ wrap.append(text, btn);
+ td.append(wrap);
wireDescriptionEdit({
editBtn: btn,
textEl: text,
- container: td,
+ container: wrap, // Phase 99 (task 01): the swaps fill the WRAPPER (the | keeps it)
getTarget: () => ({ node, source, folder }),
// Phase 98 (D4): the row's pending display (closeEditor restores
// it on a cancel; a save clears the marker in place).
@@ -1097,12 +1184,32 @@ export async function mount(root) {
return span;
}
- /* The drill navigation (client-side, no fetch, no URL change). */
- function goTo(target) {
+ /* The drill navigation (phase 99, task 02, D2 — client-side, no
+ * fetch; the drill state IS the history state). `applyTarget(target,
+ * push)`: when `push` is true the target DIFFERS from the current
+ * level (a re-click of the current row/segment pushes NO duplicate
+ * entry), it FIRST records a STATE-ONLY entry — history.pushState(
+ * { view: "rag", kb: target }, "") — the second arg "" + no third:
+ * the URL stays the shell's pathname (no new route, the phase-76
+ * deep-link surface is untouched) — then sets `current` +
+ * re-renders. Back/forward (popstate) and the re-show alignment
+ * (bor:view-refresh) adopt with push=false: they never push (the
+ * browser owns those entries). */
+ function applyTarget(target, push) {
+ if (push && (target.source !== current.source || target.folder !== current.folder)) {
+ history.pushState({ view: "rag", kb: target }, "");
+ }
current = { source: target.source, folder: target.folder };
renderLevel();
}
+ /* Every user-initiated drill (source row, folder link, breadcrumb
+ * segment) — push a history entry, then drill (D2, phase 99 task
+ * 02). */
+ function goTo(target) {
+ applyTarget(target, true);
+ }
+
/* ONE table for every level (phase 97): at the TOP level the rows
* are the SOURCES themselves (the ls() equivalence — name, recursive
* count, the stored (source, "") description). textContent only. */
@@ -1358,13 +1465,41 @@ export async function mount(root) {
return;
}
if (gateEl) gateEl.hidden = true;
- /* Phase 77 (task 02) + phase 97 (task 04): a user-initiated
- re-show of this already-mounted view makes the router dispatch
- bor:view-refresh on the section — re-load the catalog tree then
- (loadTree is race-tokened: only the newest load touches the
- DOM). Armed ONLY here, after the whoami gate passed: anonymous
- shows the gate and must never fetch /api/docs/tree (the
- phase-16 soft rule the story E2E pins). */
- root.addEventListener("bor:view-refresh", () => loadTree());
+ /* Phase 77 (task 02) + phase 97 (task 04) + phase 99 (task 02,
+ D2): a user-initiated re-show of this already-mounted view
+ makes the router dispatch bor:view-refresh on the section —
+ FIRST align the drill state with the history state (a
+ kb-carrying entry KEEPS the drill — the active-link re-click
+ pushed nothing, the drilled entry is still on top; a kb-less
+ entry — a fresh nav visit — starts at the TOP level), THEN
+ re-load the catalog tree (loadTree is race-tokened: only the
+ newest load touches the DOM). Armed ONLY here, after the whoami
+ gate passed: anonymous shows the gate and must never fetch
+ /api/docs/tree (the phase-16 soft rule the story E2E pins). */
+ root.addEventListener("bor:view-refresh", () => {
+ const kb = history.state && history.state.kb;
+ if (kb) applyTarget(kb, false);
+ else applyTarget({ source: null, folder: null }, false);
+ loadTree();
+ });
+ /* Phase 99 (task 02, D2): the browser back/forward walks the
+ breadcrumb — a popstate ADOPTS the popped entry's kb via the
+ no-push variant (the browser owns its entries — adopt/reset
+ never push) or, for a kb-LESS entry (the boot entry, the
+ router's view entries, any foreign state), RESETS the drill to
+ the TOP level. The router's own popstate (registered earlier,
+ at shell boot) reads the pathname only: rag-internal entries
+ never change it, so its listener stays a no-op and THIS
+ listener's render is the visible one; for a foreign entry it
+ has already switched the visible view, so this render is a
+ harmless hidden one. Back at the top level pops the router's
+ view entry — the view leaves, exactly as today. Armed ONCE
+ here, admin branch only: the anonymous gate installs no
+ listeners. */
+ window.addEventListener("popstate", (event) => {
+ const kb = event.state && event.state.kb;
+ if (kb) applyTarget(kb, false);
+ else applyTarget({ source: null, folder: null }, false);
+ });
loadTree();
}
diff --git a/frontend/assets/styles.css b/frontend/assets/styles.css
index bf42db5..d57bf02 100644
--- a/frontend/assets/styles.css
+++ b/frontend/assets/styles.css
@@ -1982,11 +1982,31 @@ details.thinking .thinking-text ul { margin: 0 0 0.5rem; }
.kb-folders-table { min-width: 480px; }
.kb-folders-table td:nth-child(2) { font-family: var(--font); font-size: inherit; max-width: none; }
.kb-folders-table td:nth-child(3) {
- white-space: normal;
+ white-space: nowrap; /* phase 99 (D1): one line — the clamp's budget is the column width */
min-width: 18rem;
max-width: 44rem;
font-size: 0.88rem;
}
+/* Phase 99 (task 01, D1): the Description cell is ONE flex row — the
+ text span flexes + ellipsizes (the row height is one line, independent
+ of the description's length), the Edit button stays fixed (flex: 0 0
+ auto — it never wraps to a second line). The gap replaces the button's
+ old margin-left (the context-spacing rule below keeps only the level
+ block's margin-top). The clamp is visual only: the full text stays in
+ the DOM + on the span's title (hover). */
+.kb-desc-cell {
+ display: flex;
+ align-items: center;
+ gap: 0.4rem;
+ min-width: 0;
+}
+.kb-desc-text {
+ flex: 1 1 auto;
+ min-width: 0; /* lets the flex item shrink — what engages the ellipsis (the .sync-label pattern) */
+ overflow: hidden;
+ text-overflow: ellipsis;
+ white-space: nowrap;
+}
.folder-link {
color: var(--brand-ink); /* 9.0:1 on --surface (the .doc-link pair, row variant) */
text-decoration: none;
@@ -2024,9 +2044,9 @@ details.thinking .thinking-text ul { margin: 0 0 0.5rem; }
}
.kb-summary-edit:hover { background: var(--brand-soft); color: var(--brand-ink); border-color: var(--brand); }
.kb-summary-edit[hidden] { display: none; } /* the hidden attr must beat the display above */
-/* Context spacing: the row cell's button sits after the description
- text; the level block's sits below the . */
-.kb-folders-table .kb-summary-edit { margin-left: 0.4rem; }
+/* Context spacing: the row cell's button spacing comes from the
+ .kb-desc-cell gap (phase 99, task 01 — the margin-left is gone);
+ the level block's sits below the . */
.kb-level-body .kb-summary-edit { margin-top: 0.5rem; }
.kb-summary-editor {
display: block;
@@ -2041,6 +2061,11 @@ details.thinking .thinking-text ul { margin: 0 0 0.5rem; }
line-height: 1.5;
resize: vertical;
}
+/* Phase 99 (task 01): the open editor fills the .kb-desc-cell flex
+ wrapper — as a flex item it needs the explicit grow + min-width: 0
+ (the width: 100% base above still serves the level block's non-flex
+ .kb-level-body). */
+.kb-desc-cell .kb-summary-editor { flex: 1 1 auto; min-width: 0; }
.kb-summary-actions {
display: flex;
align-items: center;
diff --git a/tests/e2e/test_kb_tree_nav.py b/tests/e2e/test_kb_tree_nav.py
new file mode 100644
index 0000000..e6c065d
--- /dev/null
+++ b/tests/e2e/test_kb_tree_nav.py
@@ -0,0 +1,759 @@
+"""Phase 99 task 03 E2E (Playwright, mock-only): the browser Back/Forward
+buttons walk the directory breadcrumb — and a long description renders
+exactly one catalog row-line.
+
+The dedicated story suite for ``99_kb_tree_table_and_back_nav`` (owner
+request, 2026-09-12): both owner-visible contracts, pinned in a browser
+against the real app + the deterministic mock:
+
+* **the back button walks the breadcrumb** (D2) — every drill
+ (source-row click, folder-link click, breadcrumb-segment click) is a
+ STATE-ONLY history entry (``history.pushState({ view: "rag",
+ kb: target }, "")`` — the URL stays the shell's pathname, the
+ phase-76 deep-link surface untouched), so ``page.go_back()`` pops
+ exactly one level at a time (``one/two`` → ``one`` → the source root
+ → the top level), ``page.go_forward()`` re-descends the whole chain,
+ and Back at the top level pops the router's own view entry — the
+ CHAT view becomes visible (the phase-76 router contract, unchanged).
+ A breadcrumb jump (clicking ``Knowledge base`` from ``one/two``)
+ pushes a top-level entry, and Back returns to the jump's ORIGIN
+ (standard history semantics). A fresh nav visit to RAG (a router
+ entry carrying no ``kb``) starts at the top level (the D2 refresh
+ alignment), while a re-click of the ACTIVE RAG nav link (no
+ pushState — the drilled entry is still on top) KEEPS the drill.
+* **the one-line clamp** (D1) — a long stored description renders ONE
+ line in the catalog row: the Description `` | ``'s bounding-box
+ height equals a short-description row's height (± 4 px), the
+ ``.kb-desc-text`` span's computed style is ``text-overflow:
+ ellipsis`` + ``white-space: nowrap``, the span's ``title`` carries
+ the FULL text (hover escape hatch) and the full text stays in the
+ DOM, the Edit button is visible IN the same cell (its bounding box
+ shares the cell's row — not wrapped below), and clicking the folder
+ shows the FULL unclamped text in the level block (``#kb-level-
+ summary`` — the owner's escape hatch at the top).
+
+Run in isolation (DB must be up: ``podman compose up -d db``):
+
+ uv run pytest tests/e2e/test_kb_tree_nav.py -v --no-cov
+
+MOCK-ONLY suite: ``E2E_REAL_LLM=1`` is not supported — the clamp test's
+level-block assertion keys on a MANUAL description (LLM-free), but the
+seeded KB's stored descriptions at the other levels are the mock's
+canned ``FOLDER_SUMMARY_MODE`` one-liner ``Fixture folder summary for
+.`` (the phase-94 convention — byte-exact only against the
+mock).
+
+KB fixture — a host temp dir (``tmp_path_factory``; the app runs on the
+same host) with ONE registered local source (the
+``test_ls_tree_drilldown.py`` / phase-94 API-registration + real
+``POST /api/sync`` pattern; no git anywhere): ``alpha/`` with the
+NESTED folder chain ``one/`` → ``two/`` (2 docs each, so the mock
+stores a description at every level) plus the sibling folder
+``three/`` (2 docs — the short-description row the clamp height is
+measured against). Total: 6 documents; the mock stores exactly four
+rows (the recursive-subtree ≥ 2 rule): the source root ``""``,
+``one``, the nested ``one/two``, and ``three``.
+
+The long manual description (test 4) is set through
+``PATCH /api/folders/summary`` with the admin cookie (the phase-97
+endpoint — pure DB write, no LLM call) BEFORE the browser visit, so
+the view's first tree fetch already carries it.
+
+Autouse cleanup (the phase-96 pattern, module-scoped — the KB is
+module-scoped: all four tests drill the same tree): after the module's
+tests, the suite removes its OWN rows — this temp source's KB rows
+(documents + their chunks), its ``folder_summaries`` rows, and its
+``git_sources`` registration — leaving the shared E2E Postgres clean
+(the deterministic start is the fresh TRUNCATE in ``seeded_kb``).
+
+Test → observable mapping (Playwright Mapping Rule):
+1. ``test_back_button_walks_the_breadcrumb`` — the full chain: chat
+ (``/``) → RAG nav link (the router's pushState entry) → source row
+ (push #1) → ``one`` (push #2) → ``two`` (push #3); the breadcrumb
+ renders ``Knowledge base / alpha / one / two`` (last segment
+ ``aria-current="page"``). Then one level per press: Back → ``one``
+ (title ``alpha/one``, ``two`` listed as a subfolder, current
+ segment ``one``), Back → the source root (title ``alpha``, current
+ segment ``alpha``), Back → the TOP level (the source row,
+ breadcrumb hidden — the URL is STILL ``/sources.html``: state-only
+ entries never change it), Back → the CHAT view visible + the RAG
+ view hidden (Back at the top leaves the view — the router
+ contract). Forward replays the whole chain: top → ``alpha`` →
+ ``one`` → ``two``, the current segment correct at each step.
+2. ``test_breadcrumb_jump_then_back`` — at ``one/two``: clicking the
+ ``Knowledge base`` breadcrumb segment is a JUMP (it pushes a
+ top-level entry) → the top level renders; Back → ``one/two`` again
+ (the jump's origin — standard history semantics, pinned).
+3. ``test_fresh_nav_visit_starts_at_the_top`` — drill to ``one/two``;
+ leave via the Tuning nav link; click the RAG nav link again (a
+ FRESH router entry, no ``kb`` state) → the RAG view shows the TOP
+ level after the refresh re-render (the D2 alignment). Then drill to
+ ``one`` and re-click the ACTIVE RAG link (no pushState —
+ ``history.length`` unchanged) → the refresh re-render KEEPS the
+ drill (still at ``one`` — the active re-click contract).
+4. ``test_description_cell_clamps_to_one_line`` — a 400+ char manual
+ description on ``one`` (via the admin API): at the source level the
+ ``one`` row's Description ``| `` bounding-box height equals the
+ ``three`` row's (± 4 px — both one line, the row height is
+ independent of the description's length), the ``.kb-desc-text``
+ span computes to ``text-overflow: ellipsis`` + ``white-space:
+ nowrap``, its ``title`` attribute carries the FULL text, the full
+ text is in the DOM, and the Edit button is visible IN the same cell
+ (its box shares the cell's row — vertically centered with the text,
+ not wrapped below). Clicking ``one`` → the level block's
+ ``#kb-level-summary`` textContent is the FULL long text (unclamped
+ at the top — the owner's escape hatch).
+"""
+from __future__ import annotations
+
+import json
+import os
+import subprocess
+import sys
+import time
+from collections.abc import Iterator
+from pathlib import Path
+from typing import Any
+
+import httpx
+import pytest
+from playwright.sync_api import Page, expect
+from sqlalchemy import select, text
+
+from app.config import Settings as _Settings
+from app.db import SessionLocal
+from app.models import FolderSummary
+from e2e.auth_helpers import login
+from e2e.conftest import (
+ ADMIN_PASSWORD,
+ SESSION_SECRET,
+ USE_REAL_LLM,
+ _wait_http,
+)
+
+REPO = Path(__file__).resolve().parents[2]
+
+# Phase 79 (task 04, full inventory): the conftest session app owns its
+# port in a combined run — this module app binds its own port instead
+# (a same-port second uvicorn dies on bind and would drive the wrong
+# server). Env-overridable.
+APP_PORT = int(os.environ.get("E2E_APP_PORT_KBTRENAV", "8144"))
+APP_URL = f"http://127.0.0.1:{APP_PORT}"
+
+# --------------------------------------------------------------------------
+# Fixture constants (deterministic, token-controlled)
+# --------------------------------------------------------------------------
+
+ALPHA = "alpha"
+
+ONE_A = "one/one-a.md"
+ONE_B = "one/one-b.md"
+TWO_A = "one/two/two-a.md"
+TWO_B = "one/two/two-b.md"
+THREE_A = "three/three-a.md"
+THREE_B = "three/three-b.md"
+
+TOTAL_DOCS = 6 # 2 one/ + 2 one/two/ + 2 three/ (no root-level files)
+
+#: The sync-time folder descriptions the mock's canned
+#: ``FOLDER_SUMMARY_MODE`` branch stores (the phase-94 byte-stable
+#: template — the one-liner names the folder), in ``(source,
+#: folder_path)`` order: one row per ≥ 2-doc folder (the
+#: recursive-subtree rule — ``one/two`` is a distinct nested folder) —
+#: the ``""`` row is the source root.
+SUMMARY_FOR = "Fixture folder summary for {}."
+ALPHA_ROOT_SUM = SUMMARY_FOR.format(ALPHA)
+ONE_SUM = SUMMARY_FOR.format(f"{ALPHA}/one")
+TWO_SUM = SUMMARY_FOR.format(f"{ALPHA}/one/two")
+THREE_SUM = SUMMARY_FOR.format(f"{ALPHA}/three")
+
+EXPECTED_SUMMARIES: list[tuple[str, str, str]] = [
+ (ALPHA, "", ALPHA_ROOT_SUM),
+ (ALPHA, "one", ONE_SUM),
+ (ALPHA, "one/two", TWO_SUM),
+ (ALPHA, "three", THREE_SUM),
+]
+assert [
+ (source, folder) for source, folder, _s in EXPECTED_SUMMARIES
+] == sorted((source, folder) for source, folder, _s in EXPECTED_SUMMARIES)
+
+#: The LONG manual description test 4 sets on ``one`` (via
+#: ``PATCH /api/folders/summary``): ≥ 300 chars — at the column's
+#: clamped width (0.88rem text, ≤ 44rem) that is comfortably ≥ 4
+#: WRAPPED lines' worth without the clamp (the owner's "rows grow way
+#: too much in height" — the pre-fix failure mode) — single line (no
+#: newlines: the API stores it as one text node) and distinctive
+#: (no part of it occurs in the fixture or the canned template).
+LONG_DESC = (
+ "Alpha one is the deep fixture folder of this navigation suite: it "
+ "holds the one-a and one-b fixture notes plus the nested two folder "
+ "with its two-a and two-b notes, and every one of those documents "
+ "exists to prove the point of this very cell, namely that no matter "
+ "how many words the owner writes into a catalog description, the "
+ "row stays a single clamped line with an ellipsis instead of "
+ "growing to four wrapped lines and stretching the whole table. "
+ "(RESE-KBTRENAV-01)"
+)
+assert len(LONG_DESC) >= 300 and "\n" not in LONG_DESC
+
+
+def _md(title: str, body: str) -> str:
+ return f"# {title}\n\n{body}\n"
+
+
+# --------------------------------------------------------------------------
+# Fixtures
+# --------------------------------------------------------------------------
+
+
+@pytest.fixture(scope="module")
+def nav_dirs(tmp_path_factory: pytest.TempPathFactory) -> Path:
+ """The ONE-source temp tree (see the module docstring): the app
+ server runs on the same host, so the path is visible to it. The
+ directory NAME is the source name (``kind=local`` → the
+ directory's basename, phase 38)."""
+ root = tmp_path_factory.mktemp("bor_kb_tree_nav")
+ alpha = root / ALPHA
+ (alpha / "one" / "two").mkdir(parents=True)
+ (alpha / "three").mkdir(parents=True)
+
+ (alpha / ONE_A).write_text(
+ _md("Alpha One A", "Alpha one fixture note A: covers topic A of "
+ "the alpha source tree."),
+ encoding="utf-8",
+ )
+ (alpha / ONE_B).write_text(
+ _md("Alpha One B", "Alpha one fixture note B: covers topic B of "
+ "the alpha source tree."),
+ encoding="utf-8",
+ )
+ (alpha / TWO_A).write_text(
+ _md("Alpha Two A", "Alpha one/two fixture note A: covers topic A "
+ "of the nested folder."),
+ encoding="utf-8",
+ )
+ (alpha / TWO_B).write_text(
+ _md("Alpha Two B", "Alpha one/two fixture note B: covers topic B "
+ "of the nested folder."),
+ encoding="utf-8",
+ )
+ (alpha / THREE_A).write_text(
+ _md("Alpha Three A", "Alpha three fixture note A: covers topic A "
+ "of the alpha source tree."),
+ encoding="utf-8",
+ )
+ (alpha / THREE_B).write_text(
+ _md("Alpha Three B", "Alpha three fixture note B: covers topic B "
+ "of the alpha source tree."),
+ encoding="utf-8",
+ )
+ assert (alpha / TWO_B).is_file() and (alpha / THREE_B).is_file()
+ return alpha
+
+
+@pytest.fixture(scope="module")
+def app_server(mock_llm: int, nav_dirs: Path) -> Iterator[str]:
+ """The real app under test — per-module app (the conftest pattern,
+ cf. ``test_ls_tree_drilldown.py`` / ``test_kb_tree.py``): NO
+ ``BOR_GIT_SOURCES`` (the env fallback is git-only — the source here
+ is a DB-registered local directory), the mock LLM, the
+ mock-calibrated threshold, and the leak-guarded code defaults. The
+ session app is never started in this isolated run, so no port
+ clash. ``nav_dirs`` is a dependency only for the fixture ordering
+ (the temp tree exists before the app boots — the sync reads it)."""
+ env = dict(os.environ)
+ env.pop("DEBUGPY", None)
+ env["BOR_ENVIRONMENT"] = "e2e"
+ env["BOR_STATIC_DIR"] = str(REPO / "frontend")
+ env["BOR_LLM_BASE_URL"] = (
+ "https://aipi.reeseapps.com/v1"
+ if USE_REAL_LLM
+ else f"http://127.0.0.1:{mock_llm}/v1"
+ )
+ # Mock-calibrated threshold (conftest pattern): this suite never
+ # asks the chat model anything — the gate is never on a path.
+ env["BOR_RELEVANCE_THRESHOLD"] = "0.30"
+ # Phase 67: instant retry waits + the code-default budget (the
+ # conftest leak-guard pattern).
+ env["BOR_LLM_RETRY_DELAY"] = "0"
+ env["BOR_LLM_RETRIES"] = str(_Settings.model_fields["llm_retries"].default)
+ env.setdefault(
+ "BOR_DATABASE_URL",
+ "postgresql+psycopg://reese:reese@localhost:5432/brain_of_reese",
+ )
+ # Phase 16: admin auth must be set or create_app() refuses to boot.
+ env["BOR_ADMIN_PASSWORD"] = ADMIN_PASSWORD
+ env["BOR_SESSION_SECRET"] = SESSION_SECRET
+ # The repo's .env file carries the owner's BOR_GIT_SOURCES (the app
+ # reads it from cwd) — override it with an EMPTY value (the env var
+ # beats the .env file): the registry must hold EXACTLY the one
+ # local directory this suite registers (a leftover env git list
+ # would pollute the top-level rows the whole story asserts on).
+ env["BOR_GIT_SOURCES"] = ""
+ # Leak guards (conftest pattern): an operator's local (gitignored)
+ # .env cannot leak corpus-specific settings into the app under test.
+ env["BOR_DOCS_REPO"] = ""
+ env["BOR_SUGGESTIONS"] = json.dumps(
+ _Settings.model_fields["suggestions"].default
+ )
+ env["BOR_INPUT_PLACEHOLDER"] = _Settings.model_fields["input_placeholder"].default
+ env["BOR_FOOTER_TEXT"] = _Settings.model_fields["footer_text"].default
+ proc = subprocess.Popen(
+ [sys.executable, "-m", "uvicorn", "app.main:app",
+ "--host", "127.0.0.1", "--port", str(APP_PORT), "--log-level", "warning"],
+ cwd=REPO,
+ env=env,
+ )
+ try:
+ _wait_http(f"{APP_URL}/api/health")
+ yield APP_URL
+ finally:
+ proc.terminate()
+ try:
+ proc.wait(timeout=10)
+ except subprocess.TimeoutExpired:
+ proc.kill()
+
+
+@pytest.fixture(scope="module")
+def app_url(app_server: str) -> str:
+ return app_server
+
+
+def _truncate_all() -> None:
+ """Fresh registry + KB (the E2E isolation pattern): the E2E suites
+ share one Postgres, so a leftover git_sources row would pollute the
+ top-level rows and a leftover document would show up in the level
+ file tables and the stat cards the suite asserts on exactly."""
+ with SessionLocal() as db:
+ db.execute(
+ text(
+ "TRUNCATE chunks, documents, query_log, steering_notes, "
+ "kb_overview, git_sources, folder_summaries"
+ )
+ )
+ db.commit() # without the commit the TRUNCATE rolls back (the house pattern)
+
+
+def _wait_sync_done_http(client: httpx.Client, timeout_s: float = 180.0) -> dict[str, Any]:
+ """Poll the (cookie-authenticated) status endpoint until the run
+ reaches a terminal state (the test_local_directory_sources pattern,
+ over plain httpx — this fixture has no browser page yet)."""
+ deadline = time.monotonic() + timeout_s
+ body: dict[str, Any] = {}
+ while time.monotonic() < deadline:
+ r = client.get("/api/sync/status")
+ assert r.status_code == 200, r.text
+ body = r.json()
+ if body["state"] in ("success", "failed"):
+ return body
+ time.sleep(0.5)
+ raise AssertionError(f"sync did not reach a terminal state: {body}")
+
+
+@pytest.fixture(scope="module")
+def seeded_kb(app_server: str, nav_dirs: Path) -> None:
+ """The story's precondition: the nested-folder KB synced under the
+ deterministic mock.
+
+ Registers the temp directory through the authenticated API (the
+ ``test_local_directory_sources.py`` / phase-94 pattern), runs the
+ REAL in-process sync (``POST /api/sync`` — walk → chunk → embed →
+ overview → folder summaries → version bump), and pins the stored
+ folder descriptions: the mock's canned ``FOLDER_SUMMARY_MODE``
+ branch (phase 94) makes the sync store one deterministic row per
+ ≥ 2-doc folder — the level-block assertions below key on that
+ exact text at every level of the chain.
+ """
+ alpha = nav_dirs
+ _truncate_all()
+ with httpx.Client(base_url=app_server, timeout=30.0) as client:
+ r = client.post("/api/login", json={"password": ADMIN_PASSWORD})
+ assert r.status_code == 204, r.text
+ r = client.post(
+ "/api/git-sources", json={"kind": "local", "path": str(alpha)}
+ )
+ assert r.status_code == 201, r.text
+ r = client.post("/api/sync")
+ assert r.status_code == 202, r.text
+ body = _wait_sync_done_http(client)
+ assert body["state"] == "success", body
+ detail = body["detail"]
+ assert detail["added"] == TOTAL_DOCS, detail
+ assert detail["pruned"] == 0, detail
+ assert detail["overview"] is True, detail
+ # The change-gated folder descriptions (phase 94) landed: one row
+ # per ≥ 2-doc folder (the nested ``one/two`` included), the mock's
+ # byte-stable text — and every row AI-written (the phase-97
+ # ``manually_edited`` flag starts false).
+ with SessionLocal() as db:
+ rows = db.execute(
+ select(
+ FolderSummary.source,
+ FolderSummary.folder_path,
+ FolderSummary.summary,
+ FolderSummary.manually_edited,
+ ).order_by(FolderSummary.source, FolderSummary.folder_path)
+ ).all()
+ assert [
+ (source, folder, summary, False)
+ for source, folder, summary in EXPECTED_SUMMARIES
+ ] == [(s, f, t, m) for s, f, t, m in rows], rows
+
+
+@pytest.fixture(autouse=True, scope="module")
+def _clean(nav_dirs: Path, seeded_kb: None) -> Iterator[None]:
+ """Autouse cleanup (the phase-96 pattern, module-scoped — the KB is
+ module-scoped: all four tests drill the same tree): AFTER the
+ module's tests, remove this suite's OWN rows — the temp source's
+ KB rows (documents + their chunks), its ``folder_summaries`` rows
+ (test 4's manual description included), and its ``git_sources``
+ registration (the local row's ``url`` column holds the expanded
+ path) — leaving the shared E2E Postgres the way the house
+ isolation pattern found it. The deterministic START is the fresh
+ TRUNCATE in ``seeded_kb``."""
+ yield
+ with SessionLocal() as db:
+ db.execute(
+ text(
+ "DELETE FROM chunks WHERE document_id IN "
+ "(SELECT id FROM documents WHERE source = :s)"
+ ),
+ {"s": ALPHA},
+ )
+ db.execute(text("DELETE FROM documents WHERE source = :s"), {"s": ALPHA})
+ db.execute(text("DELETE FROM folder_summaries WHERE source = :s"), {"s": ALPHA})
+ db.execute(text("DELETE FROM git_sources WHERE url = :p"), {"p": str(nav_dirs)})
+ db.execute(text("TRUNCATE query_log"))
+ db.commit()
+
+
+# --------------------------------------------------------------------------
+# Page helpers
+# --------------------------------------------------------------------------
+
+
+def _wait_top_level(page: Page) -> None:
+ """The TOP level has rendered: the source rows (this suite: exactly
+ one — ``alpha``), the breadcrumb + the level block hidden, the file
+ table empty (files are per-source — always hidden at the top), and
+ the stat cards' document total (the tree walk)."""
+ expect(page.locator("#folders-tbody tr")).to_have_count(1, timeout=30_000)
+ expect(page.locator("#kb-crumb")).to_be_hidden()
+ expect(page.locator("#kb-level")).to_be_hidden()
+ expect(page.locator("#docs-tbody tr")).to_have_count(0)
+ expect(page.locator("#stat-docs")).to_have_text(str(TOTAL_DOCS))
+
+
+def _drill(page: Page, *names: str) -> None:
+ """Drill one level at a time (client-side — no fetch, NO URL
+ change): each name is the EXACT text of the source/folder link at
+ the current level (the row builders' link text: the source name, or
+ the folder's last path segment). Phase 99 (D2): every drill click
+ is a STATE-ONLY history entry (``goTo`` → ``applyTarget(target,
+ true)``)."""
+ for name in names:
+ page.click(f'#folders-tbody a.folder-link:text-is("{name}")')
+
+
+def _assert_crumb(page: Page, links: list[str], current: str) -> None:
+ """The breadcrumb (``#kb-crumb``) renders the drilled chain: one
+ ``.kb-crumb-link`` per ancestor (in order — the first is always the
+ ``Knowledge base`` jump-to-top segment), then the last segment as
+ the ``.kb-crumb-current`` span with ``aria-current="page"``."""
+ expect(page.locator("#kb-crumb")).to_be_visible()
+ texts = page.eval_on_selector_all(
+ "#kb-crumb :is(.kb-crumb-link, .kb-crumb-current)",
+ "(els) => els.map((el) => el.textContent)",
+ )
+ assert texts == [*links, current], texts
+ cur = page.locator("#kb-crumb .kb-crumb-current")
+ expect(cur).to_have_count(1)
+ expect(cur).to_have_attribute("aria-current", "page")
+
+
+def _assert_level(page: Page, title: str, summary: str) -> None:
+ """The level block (``#kb-level``) shows the current directory's
+ stored description: the full source-relative path as the title, the
+ description as the text (UNCLAMPED at the top — the D1 escape
+ hatch)."""
+ expect(page.locator("#kb-level")).to_be_visible()
+ expect(page.locator("#kb-level-title")).to_have_text(title)
+ expect(page.locator("#kb-level-summary")).to_have_text(summary)
+
+
+def _open_rag_from_chat(page: Page, app_url: str) -> None:
+ """The phase-76 router entry: from the chat view (``/``) click the
+ RAG nav link — a client-side view switch (pushState ``{ view:
+ "rag" }`` — NO ``kb``) that mounts the RAG view on its first show
+ and lands on the top level."""
+ page.click("#nav-sources")
+ expect(page.locator("#view-rag")).to_be_visible()
+ expect(page).to_have_url(app_url + "/sources.html")
+ _wait_top_level(page)
+
+
+def _drill_to_two(page: Page) -> None:
+ """The full drill chain, asserted at every level (the chain every
+ test in this suite starts with): source row → ``one`` → ``two`` —
+ the level block + the breadcrumb's exact segment chain at each
+ step (the last segment ``aria-current``)."""
+ page.click(f'#folders-tbody a.folder-link:text-is("{ALPHA}")')
+ _assert_level(page, ALPHA, ALPHA_ROOT_SUM)
+ _assert_crumb(page, ["Knowledge base"], ALPHA)
+ expect(page.locator("#folders-tbody a.folder-link")).to_have_count(2)
+
+ page.click('#folders-tbody a.folder-link:text-is("one")')
+ _assert_level(page, f"{ALPHA}/one", ONE_SUM)
+ _assert_crumb(page, ["Knowledge base", ALPHA], "one")
+ expect(page.locator('#folders-tbody a.folder-link:text-is("two")')).to_be_visible()
+
+ page.click('#folders-tbody a.folder-link:text-is("two")')
+ _assert_level(page, f"{ALPHA}/one/two", TWO_SUM)
+ _assert_crumb(page, ["Knowledge base", ALPHA, "one"], "two")
+ expect(page.locator("#folders-wrap")).to_be_hidden() # a leaf folder: no subfolders
+
+
+# --------------------------------------------------------------------------
+# 1. The back button walks the breadcrumb — one level per press, the
+# router contract at the top, the whole chain replays on Forward
+# --------------------------------------------------------------------------
+
+
+def test_back_button_walks_the_breadcrumb(
+ page: Page, app_url: str, seeded_kb: None, db_ready: None
+) -> None:
+ page.set_default_timeout(30_000)
+ login(page, app_url, next="/")
+ _open_rag_from_chat(page, app_url)
+
+ # The full drill chain (three STATE-ONLY pushes — the URL is
+ # /sources.html at every level; the phase-76 deep-link surface is
+ # untouched).
+ _drill_to_two(page)
+ expect(page).to_have_url(app_url + "/sources.html")
+
+ # --- Back: one level per press --------------------------------------
+ # popstate adopts the popped entry's kb (no push) — the level is
+ # `one`: the title, `two` listed as a subfolder, the breadcrumb's
+ # current segment = `one`.
+ page.go_back()
+ expect(page.locator("#view-rag")).to_be_visible()
+ expect(page).to_have_url(app_url + "/sources.html") # state-only: no URL change
+ _assert_level(page, f"{ALPHA}/one", ONE_SUM)
+ _assert_crumb(page, ["Knowledge base", ALPHA], "one")
+ expect(page.locator('#folders-tbody a.folder-link:text-is("two")')).to_be_visible()
+
+ # Back: the source root — title `alpha`, current segment the source.
+ page.go_back()
+ _assert_level(page, ALPHA, ALPHA_ROOT_SUM)
+ _assert_crumb(page, ["Knowledge base"], ALPHA)
+ expect(page.locator("#folders-tbody a.folder-link")).to_have_count(2)
+
+ # Back: the TOP level — the source row, the breadcrumb + level
+ # block hidden. The URL is STILL the RAG path (the entry popped is
+ # the router's view entry — same-document, state-only pushes never
+ # changed the pathname).
+ page.go_back()
+ expect(page).to_have_url(app_url + "/sources.html")
+ _wait_top_level(page)
+
+ # Back at the top level: the router's OWN popstate (pathname `/`)
+ # switches the view — the CHAT view is visible, the RAG view hidden
+ # (Back at the top leaves the view, exactly as pre-phase-99).
+ page.go_back()
+ expect(page.locator("#view-chat")).to_be_visible()
+ expect(page.locator("#view-rag")).to_be_hidden()
+ expect(page).to_have_url(app_url + "/")
+
+ # --- Forward: the whole chain replays -------------------------------
+ # Forward: the router's view entry — the RAG view re-shows on the
+ # top level (the kb-less entry — the D2 alignment, via the
+ # refresh re-render).
+ page.go_forward()
+ expect(page.locator("#view-rag")).to_be_visible()
+ _wait_top_level(page)
+
+ # Forward: the source root.
+ page.go_forward()
+ _assert_level(page, ALPHA, ALPHA_ROOT_SUM)
+ _assert_crumb(page, ["Knowledge base"], ALPHA)
+
+ # Forward: `one`.
+ page.go_forward()
+ _assert_level(page, f"{ALPHA}/one", ONE_SUM)
+ _assert_crumb(page, ["Knowledge base", ALPHA], "one")
+
+ # Forward: `two` — the chain's end again, current segment correct.
+ page.go_forward()
+ _assert_level(page, f"{ALPHA}/one/two", TWO_SUM)
+ _assert_crumb(page, ["Knowledge base", ALPHA, "one"], "two")
+
+
+# --------------------------------------------------------------------------
+# 2. A breadcrumb jump pushes an entry — Back returns to the jump's
+# origin (standard history semantics)
+# --------------------------------------------------------------------------
+
+
+def test_breadcrumb_jump_then_back(
+ page: Page, app_url: str, seeded_kb: None, db_ready: None
+) -> None:
+ page.set_default_timeout(30_000)
+ login(page, app_url, next="/")
+ _open_rag_from_chat(page, app_url)
+ _drill_to_two(page)
+
+ # The jump: the `Knowledge base` breadcrumb segment (a real drill
+ # target — goTo pushes a top-level entry).
+ page.click('#kb-crumb a.kb-crumb-link:text-is("Knowledge base")')
+ expect(page).to_have_url(app_url + "/sources.html") # state-only: no URL change
+ _wait_top_level(page)
+
+ # Back: the jump's ORIGIN — `one/two` again (standard history
+ # semantics: the jump was an entry, not a reset).
+ page.go_back()
+ _assert_level(page, f"{ALPHA}/one/two", TWO_SUM)
+ _assert_crumb(page, ["Knowledge base", ALPHA, "one"], "two")
+
+
+# --------------------------------------------------------------------------
+# 3. The D2 alignment: a fresh nav visit starts at the top; an
+# active-link re-click keeps the drill
+# --------------------------------------------------------------------------
+
+
+def test_fresh_nav_visit_starts_at_the_top(
+ page: Page, app_url: str, seeded_kb: None, db_ready: None
+) -> None:
+ page.set_default_timeout(30_000)
+ login(page, app_url, next="/")
+ _open_rag_from_chat(page, app_url)
+ _drill_to_two(page)
+
+ # Leave via the Tuning nav link (the router's view entry).
+ page.click("#nav-tuning")
+ expect(page.locator("#view-tuning")).to_be_visible()
+ expect(page.locator("#view-rag")).to_be_hidden()
+ expect(page).to_have_url(app_url + "/tuning.html")
+
+ # A FRESH nav visit to RAG: the router's entry carries no `kb`
+ # state — the D2 alignment resets the drill to the TOP level (after
+ # the refresh re-render).
+ page.click("#nav-sources")
+ expect(page.locator("#view-rag")).to_be_visible()
+ expect(page).to_have_url(app_url + "/sources.html")
+ _wait_top_level(page)
+
+ # Drill to `one`…
+ page.click(f'#folders-tbody a.folder-link:text-is("{ALPHA}")')
+ page.click('#folders-tbody a.folder-link:text-is("one")')
+ _assert_level(page, f"{ALPHA}/one", ONE_SUM)
+
+ # …and re-click the ACTIVE RAG link: NO pushState (the router's
+ # re-click contract — `history.length` unchanged), the drilled
+ # entry is still on top, and the refresh alignment KEEPS the drill.
+ length_before = page.evaluate("() => history.length")
+ page.click("#nav-sources")
+ expect(page.locator("#view-rag")).to_be_visible()
+ assert page.evaluate("() => history.length") == length_before # no pushState
+ _assert_level(page, f"{ALPHA}/one", ONE_SUM)
+ _assert_crumb(page, ["Knowledge base", ALPHA], "one")
+ expect(page).to_have_url(app_url + "/sources.html")
+
+
+# --------------------------------------------------------------------------
+# 4. The measured one-line clamp: row height independent of the
+# description's length, ellipsis + hover title, Edit in-cell, the
+# full text at the top
+# --------------------------------------------------------------------------
+
+
+def test_description_cell_clamps_to_one_line(
+ page: Page, app_url: str, seeded_kb: None, db_ready: None
+) -> None:
+ page.set_default_timeout(30_000)
+
+ # The long manual description on `one` (the phase-97 endpoint — a
+ # pure DB write, the admin cookie via the real /api/login), set
+ # BEFORE the browser visit: the view's first tree fetch already
+ # carries it (manually_edited — the sync's generator would have
+ # skipped it).
+ with httpx.Client(base_url=app_url, timeout=30.0) as client:
+ r = client.post("/api/login", json={"password": ADMIN_PASSWORD})
+ assert r.status_code == 204, r.text
+ r = client.patch(
+ "/api/folders/summary",
+ json={"source": ALPHA, "folder_path": "one", "summary": LONG_DESC},
+ )
+ assert r.status_code == 200, r.text
+ assert r.json()["summary"] == LONG_DESC, r.json()
+
+ login(page, app_url, next="/sources.html")
+ _wait_top_level(page)
+
+ # The source level: the folder rows `one` (the long manual
+ # description) + `three` (the short canned one).
+ page.click(f'#folders-tbody a.folder-link:text-is("{ALPHA}")')
+ _assert_level(page, ALPHA, ALPHA_ROOT_SUM)
+
+ one_row = page.locator(
+ "#folders-tbody tr", has=page.locator('a.folder-link:text-is("one")')
+ )
+ three_row = page.locator(
+ "#folders-tbody tr", has=page.locator('a.folder-link:text-is("three")')
+ )
+ expect(one_row).to_have_count(1)
+ expect(three_row).to_have_count(1)
+
+ # The measured clamp: the long-description row's Description |
+ # is ONE line — its bounding-box height equals the short row's (±
+ # 4 px). Without the clamp, ≥ 4 wrapped lines would stretch it.
+ one_desc = one_row.locator("td:nth-child(3)")
+ three_desc = three_row.locator("td:nth-child(3)")
+ one_box = one_desc.bounding_box()
+ three_box = three_desc.bounding_box()
+ assert one_box is not None and three_box is not None
+ assert abs(one_box["height"] - three_box["height"]) <= 4, (one_box, three_box)
+
+ # The span: the full text stays in the DOM (the accessible name is
+ # unchanged — the ellipsis is CSS-only) and rides the `title` (the
+ # hover escape hatch, D1); the computed style is the ellipsis
+ # triad's visible half.
+ span = one_row.locator("span.kb-desc-text")
+ expect(span).to_have_text(LONG_DESC)
+ expect(span).to_have_attribute("title", LONG_DESC)
+ style = span.evaluate(
+ """(el) => {
+ const s = getComputedStyle(el);
+ return { textOverflow: s.textOverflow, whiteSpace: s.whiteSpace };
+ }"""
+ )
+ assert style["textOverflow"] == "ellipsis", style
+ assert style["whiteSpace"] == "nowrap", style
+
+ # The Edit button stays IN the same cell (D1 — the owner's "nice
+ # touch"): visible, its bounding box inside the cell's, sharing the
+ # cell's row (vertically centered with the text — NOT wrapped
+ # below).
+ btn = one_row.locator("button.kb-summary-edit")
+ expect(btn).to_be_visible()
+ btn_box = btn.bounding_box()
+ span_box = span.bounding_box()
+ assert btn_box is not None and span_box is not None
+ assert btn_box["y"] >= one_box["y"] - 1, (btn_box, one_box)
+ assert btn_box["y"] + btn_box["height"] <= one_box["y"] + one_box["height"] + 1
+ assert btn_box["x"] >= one_box["x"] - 1, (btn_box, one_box)
+ assert btn_box["x"] + btn_box["width"] <= one_box["x"] + one_box["width"] + 1
+ assert (
+ abs(
+ (span_box["y"] + span_box["height"] / 2)
+ - (btn_box["y"] + btn_box["height"] / 2)
+ )
+ <= 4
+ ), (span_box, btn_box)
+
+ # The escape hatch at the top: clicking `one` shows the FULL long
+ # text in the level block (unclamped — `.kb-level p` is untouched).
+ one_row.locator("a.folder-link").click()
+ _assert_level(page, f"{ALPHA}/one", LONG_DESC)
diff --git a/tests/e2e/test_sync_summary_visibility.py b/tests/e2e/test_sync_summary_visibility.py
index f8e0ccb..cadf851 100644
--- a/tests/e2e/test_sync_summary_visibility.py
+++ b/tests/e2e/test_sync_summary_visibility.py
@@ -865,7 +865,9 @@ def test_missing_folder_summaries_read_as_pending_and_self_heal(
src_row = page.locator("#folders-tbody tr")
s_span = src_row.locator("td:nth-child(3) span")
expect(s_span).to_have_text(PENDING_COPY)
- expect(s_span).to_have_class("kb-summary-pending")
+ # Phase 99 (task 01): the marker toggles onto the cell's base
+ # .kb-desc-text span (the one-line clamp) — the class pair, exact.
+ expect(s_span).to_have_class("kb-desc-text kb-summary-pending")
expect(s_span).to_have_attribute("title", PENDING_TITLE)
# The Edit button is KEPT with the marker (a manual save creates
# the row and clears the marker in place).
@@ -888,10 +890,11 @@ def test_missing_folder_summaries_read_as_pending_and_self_heal(
expect(alpha_row.locator("td:nth-child(3) span")).not_to_have_class(
"kb-summary-pending"
)
- # The affected folder: the marker (copy + class + title).
+ # The affected folder: the marker (copy + class + title) — the
+ # class pair with the phase-99 .kb-desc-text base span, exact.
b_span = bravo_row.locator("td:nth-child(3) span")
expect(b_span).to_have_text(PENDING_COPY)
- expect(b_span).to_have_class("kb-summary-pending")
+ expect(b_span).to_have_class("kb-desc-text kb-summary-pending")
expect(b_span).to_have_attribute("title", PENDING_TITLE)
# Drill into the affected folder: ITS level block shows the D4
diff --git a/tests/unit/test_frontend_router.py b/tests/unit/test_frontend_router.py
index e19c89c..b14388d 100644
--- a/tests/unit/test_frontend_router.py
+++ b/tests/unit/test_frontend_router.py
@@ -548,23 +548,34 @@ def _pin_refresh_listener(js: str, gate: str, listener_call: str, name: str) ->
"""Shared shape of the task-02 pin: the view module listens for
``bor:view-refresh`` on its own root, the listener re-runs the
view's existing load, and the listener is armed ONLY in the ADMIN
- branch — after the whoami gate (anonymous never fetches)."""
+ branch — after the whoami gate (anonymous never fetches). The
+ body is sliced to the listener's close: the block-arrow forms
+ (phase 99 task 02: the rag view's history-alignment step runs
+ before the load) close with ``});``, the inline-arrow forms close
+ with ``());`` (the slice then runs to the NEXT ``});`` in the file
+ — or to its end — harmless, the inline call sits at the slice's
+ start)."""
listener = js.find('addEventListener("bor:view-refresh"')
assert listener != -1, f"{name} must listen for the refresh event on the view root"
gate_i = js.find(gate)
assert 0 <= gate_i < listener, (
f"{name}: the listener must be armed in the ADMIN branch (after {gate!r})"
)
- assert listener_call in js[listener : listener + 120], (
+ end = js.find("});", listener)
+ body = js[listener:] if end == -1 else js[listener : end + 3]
+ assert listener_call in body, (
f"{name}: the listener must re-run the view's load ({listener_call!r})"
)
def test_rag_view_refetches_on_reshow() -> None:
- """Phase 77 task 02 (+ phase 97 task 04): the RAG (knowledge base)
- view re-fetches on a user-initiated re-show — sources.js listens
- and re-runs ``loadTree()`` (the phase-97 catalog load: ONE fetch of
- ``GET /api/docs/tree``). The load is race-tokened (phase 79) and
+ """Phase 77 task 02 (+ phase 97 task 04, + phase 99 task 02):
+ the RAG (knowledge base) view re-fetches on a user-initiated
+ re-show — sources.js listens and re-runs ``loadTree()`` (the
+ phase-97 catalog load: ONE fetch of ``GET /api/docs/tree``), now
+ AFTER the phase-99 history alignment (adopt the entry's kb / reset
+ to the top — a block-arrow listener, hence the ``});`` close in
+ the pin helper below). The load is race-tokened (phase 79) and
the RE-ENTRANT render — ``renderLevel`` clears BOTH row containers
at the TOP before filling them (the History pattern from task 01,
extended to the folders table) — so a refresh from a populated
@@ -572,7 +583,7 @@ def test_rag_view_refetches_on_reshow() -> None:
of leaving ghost rows."""
js = _asset("sources.js")
_pin_refresh_listener(
- js, "const admin = await fetchIsAdmin();", "() => loadTree()", "sources.js"
+ js, "const admin = await fetchIsAdmin();", "loadTree()", "sources.js"
)
load = js.find("async function loadTree()")
assert load != -1, "loadTree must exist"
diff --git a/tests/unit/test_kb_tree_ui.py b/tests/unit/test_kb_tree_ui.py
index b892030..1f9d916 100644
--- a/tests/unit/test_kb_tree_ui.py
+++ b/tests/unit/test_kb_tree_ui.py
@@ -357,16 +357,40 @@ def test_breadcrumb_links_go_up_and_the_top_reset() -> None:
assert "span.textContent = label" in cur
-def test_navigation_is_client_side_only() -> None:
- """goTo() is the ONLY navigation: set `current`, re-render. No
- fetch (the tree is already in memory), no URL change (history is
- untouched — the deep-link contract of the shell is unchanged)."""
+def test_drill_navigation_pushes_state_only_entries() -> None:
+ """Phase 99 (task 02, D2): every user-initiated drill is a history
+ entry — ``goTo`` is the push variant of ``applyTarget``: when the
+ target DIFFERS from the current level (a re-click of the current
+ row/segment pushes NO duplicate entry), it FIRST records a
+ STATE-ONLY entry — ``history.pushState({ view: "rag", kb: target },
+ "")`` — the second arg is ``""`` and there is no third (the URL
+ stays the shell's pathname: no new route, the phase-76 deep-link
+ surface is untouched) — then sets ``current`` + re-renders. The
+ drill still never fetches (the tree is in memory) and the module
+ never ``replaceState``s."""
js = _js()
- body = js[js.find("function goTo(") : js.find("function makeSourceRow(")]
- assert "current = { source: target.source, folder: target.folder };" in body
- assert "renderLevel();" in body
+ start = js.find("function applyTarget(")
+ assert start != -1, "applyTarget must exist (the two-step drill)"
+ body = js[start : js.find("function makeSourceRow(")]
+ gate_i = body.find(
+ "if (push && (target.source !== current.source || target.folder !== current.folder)) {"
+ )
+ push_i = body.find('history.pushState({ view: "rag", kb: target }, "")')
+ set_i = body.find("current = { source: target.source, folder: target.folder };")
+ render_i = body.find("renderLevel();")
+ assert -1 < gate_i < push_i < set_i < render_i, (
+ "push gate (target differs from current) → pushState → set current → render"
+ )
+ # STATE-ONLY: exactly ONE pushState call site — the "" second arg,
+ # no third (no URL change).
+ assert _code(body).count("pushState") == 1, (
+ "ONE pushState call site — the state-only drill entry"
+ )
+ assert "replaceState" not in _code(js), "no replaceState anywhere in the module"
+ # goTo is the push variant — every drill call site keeps calling it.
+ go = body[body.find("function goTo(") :]
+ assert "applyTarget(target, true)" in go, "goTo pushes (the user-initiated drill)"
assert "fetch(" not in body, "the drill never fetches (client-side only)"
- assert "pushState" not in body and "replaceState" not in body, "no URL change"
# ---------- the level rendering ----------
@@ -577,16 +601,30 @@ def test_load_tree_wired_at_exactly_the_three_refresh_points_plus_boot() -> None
assert _code(js).count("loadTree()") == 5, (
"the definition + the 4 call sites, no others (code, not comments)"
)
- # 1. the view-refresh listener, armed in the admin branch.
+ # 1. the view-refresh listener, armed in the admin branch — since
+ # Phase 99 (task 02, D2) its body is the ALIGNMENT step (a
+ # kb-carrying history.state entry keeps the drill — the
+ # active-link re-click; a kb-less entry starts at the top — a
+ # fresh nav visit) BEFORE the re-fetch.
listener = js.find('addEventListener("bor:view-refresh"')
assert listener != -1
gate = js.find("const admin = await fetchIsAdmin();")
assert -1 < gate < listener, "armed after the whoami gate (the phase-77 pin)"
- assert "() => loadTree()" in js[listener : listener + 120]
+ listener_body = js[listener : js.find('window.addEventListener("popstate"')]
+ state_i = listener_body.find("history.state && history.state.kb")
+ adopt_i = listener_body.find("applyTarget(kb, false)")
+ reset_i = listener_body.find("applyTarget({ source: null, folder: null }, false)")
+ load_i = listener_body.find("loadTree();")
+ assert -1 < state_i < adopt_i < reset_i < load_i, (
+ "align with history.state (adopt kb / reset to top) BEFORE the re-fetch"
+ )
+ assert "pushState" not in _code(listener_body), ("the alignment adopts only — no push")
# 2. the boot load — the last statement of mount, right after the
- # listener is armed (the mount's own load is the first fetch).
- assert 'root.addEventListener("bor:view-refresh", () => loadTree());\n loadTree();' in js, (
- "the boot load follows the listener"
+ # listeners are armed (the mount's own load is the first fetch).
+ pop = js.find('window.addEventListener("popstate"')
+ boot = js[js.find("});", pop) + 3 :] # past the popstate listener's close
+ assert boot.strip().startswith("loadTree();"), (
+ "the boot load follows the listeners (no pushState on boot)"
)
# 3. applySyncSuccess (the sync's terminal — the KB just changed).
success = js[js.find("function applySyncSuccess(") : js.find("function applySyncFailure(")]
@@ -746,13 +784,16 @@ def test_row_description_cell_builds_text_and_always_present_edit() -> None:
the text gates on the node state, the button never does). The
button is a real type=button with a human aria-label, and the
shared editor is wired with a CONSTANT target { node, source,
- folder }."""
+ folder }. Phase 99 (task 01, D1): text + button live in ONE
+ `div.kb-desc-cell` flex wrapper (the | holds only the wrapper),
+ and the editor's container IS the wrapper (the open/close swaps
+ fill it — the cell layout survives the editor swap)."""
body = _fn(_js(), "makeDescCell")
# The Edit button is built unconditionally — the whole button
# block (from its creation to the append) carries no `if` gate on
# the stored description or the pending flag.
btn_block = body[
- body.find("const btn = document.createElement") : body.find("td.append(text, btn)")
+ body.find("const btn = document.createElement") : body.find("wrap.append(text, btn)")
]
assert "if (" not in btn_block, (
"always present: no gate on the stored description"
@@ -761,10 +802,20 @@ def test_row_description_cell_builds_text_and_always_present_edit() -> None:
assert 'btn.className = "kb-summary-edit"' in body
assert 'btn.textContent = "Edit"' in body
assert 'btn.setAttribute("aria-label", `Edit description: ${label}`)' in body
- assert "td.append(text, btn)" in body
+ assert 'wrap.className = "kb-desc-cell"' in body, "the ONE flex wrapper"
+ assert "wrap.append(text, btn)" in body, "text + button, in order, in the wrapper"
+ assert "td.append(wrap)" in body, "the | holds the wrapper (no new td class)"
+ assert "container: wrap" in body, (
+ "the editor's container is the WRAPPER (Phase 99 — the swap fills it)"
+ )
assert "getTarget: () => ({ node, source, folder })" in body, (
"a row's target is a constant (its own node)"
)
+ # The level block's editor is UNTOUCHED — its container is still
+ # .kb-level-body (the D1 escape hatch keeps its full text).
+ js = _js()
+ wire = js[js.find("levelEditor = wireDescriptionEdit({") : js.find("/* ---------- view boot")]
+ assert "container: levelBody" in wire
def test_desc_cell_pending_marker_branch() -> None:
@@ -786,7 +837,12 @@ def test_desc_cell_pending_marker_branch() -> None:
assert "kb-summary-pending" not in stored, "a stored summary is NEVER the marker"
assert "Summary pending" not in stored
pending = body[pending_i:empty_i]
- assert 'text.className = "kb-summary-pending"' in pending
+ assert 'text.classList.add("kb-summary-pending")' in pending, (
+ "Phase 99: the marker TOGGLES onto the .kb-desc-text base class"
+ )
+ assert 'text.className = "kb-summary-pending"' not in body, (
+ "a bare className re-assignment would drop the clamp's base class"
+ )
assert 'text.textContent = "Summary pending"' in pending, "the D4 marker copy"
assert (
'text.title = "No stored description yet — the next sync will generate one."'
@@ -841,13 +897,23 @@ def test_close_editor_rederives_the_pending_display() -> None:
close = body[body.find("function closeEditor(") : body.find("function openEditor()")]
flag_i = close.find('const pending = node !== null && stored === "" && node.summary_pending;')
value_i = close.find("const value = pending && pendingText ? pendingText : stored;")
- class_i = close.find('textEl.className = pending ? "kb-summary-pending" : "";')
+ class_i = close.find('textEl.classList.toggle("kb-summary-pending", pending);')
title_i = close.find("if (pendingTitle) textEl.title = pendingTitle;")
+ hover_i = close.find('} else if (stored && textEl.classList.contains("kb-desc-text")) {')
+ full_i = close.find("textEl.title = stored;")
clear_title_i = close.find('textEl.removeAttribute("title")')
render_i = close.find("textEl.textContent = value")
- assert -1 < flag_i < value_i < class_i < title_i < clear_title_i < render_i, (
- "flag → value → class → title (set/clear) → text, in order"
+ assert -1 < flag_i < value_i < class_i < title_i < hover_i < full_i, (
+ "flag → value → class toggle → title (pending / hover-full), in order"
)
+ assert full_i < clear_title_i < render_i, "title-set → title-clear → text, in order"
+ # Phase 99 (task 01): the class line is a TOGGLE (the base classes
+ # survive — the row's span keeps .kb-desc-text, the clamp; the
+ # level's keeps none), and the CLAMPED row span's title is
+ # re-derived from the stored text (the D1 hover escape hatch — a
+ # stale pre-edit title cannot survive a save; the unclamped
+ # level's is gated out by the kb-desc-text check).
+ assert 'textEl.className' not in close, "no bare className re-assignment"
# The row passes its marker copy + the EXACT D4 tooltip…
cell = _fn(_js(), "makeDescCell")
assert 'pendingText: "Summary pending"' in cell
@@ -1212,3 +1278,243 @@ def test_module_docstring_documents_the_pending_markers() -> None:
in header
), "the level block's pending note"
assert "node.summary_pending = false" in header, "the in-place clear"
+
+
+# ---------- the one-line Description clamp (phase 99, task 01) ----------
+# D1: the clamp is VISUAL only — the row's Description cell is ONE flex
+# row (text flexes + ellipsizes, the Edit button stays fixed), the full
+# text stays in the DOM + on the span's hover title, and the level
+# block keeps the full unclamped description. The measured-height proof
+# lands in the phase's E2E (task 03); this module pins the structure
+# and the CSS.
+
+
+def _css_rule(css_text: str, selector: str) -> str:
+ """The declarations of the rule with exactly this selector (the
+ task-named classes own their base rule — no compound matches)."""
+ m = re.search(r"(? None:
+ """Phase 99 (task 01, D1): the text span (`.kb-desc-text` — the
+ base class, set UNCONDITIONALLY before the three-state branch) AL-
+ WAYS carries `title` = the FULL description text for real
+ (non-empty) stored text — the hover escape hatch of the visual
+ clamp; the phase-98 marker keeps its OWN D4 title (never over-
+ ridden by the hover rule); the empty cell carries no title at all.
+ textContent/title only — the house rule (no innerHTML)."""
+ body = _fn(_js(), "makeDescCell")
+ base_i = body.find('text.className = "kb-desc-text"')
+ stored_i = body.find("if (node && node.summary) {")
+ pending_i = body.find("else if (node && node.summary_pending) {")
+ empty_i = body.find("} else {")
+ assert -1 < base_i < stored_i, "the base clamp class is set before the state branch"
+ stored = body[stored_i:pending_i]
+ assert "text.title = node.summary;" in stored, "stored → title = the full text (hover)"
+ assert "Summary pending" not in stored, "the stored branch never touches the marker"
+ pending = body[pending_i:empty_i]
+ assert (
+ 'text.title = "No stored description yet — the next sync will generate one."'
+ in pending
+ ), "the marker keeps its OWN D4 title"
+ empty = body[empty_i : empty_i + 200]
+ assert "text.title" not in empty, "the empty cell carries no title"
+ code = re.sub(r"//.*?$|/\*.*?\*/", "", body, flags=re.S | re.M)
+ assert "innerHTML" not in code, "the house rule: no innerHTML in the cell builder"
+
+
+def test_close_editor_rederives_the_hover_title_from_the_stored_text() -> None:
+ """Phase 99 (task 01, D1): the hover title is the escape hatch for
+ the CLAMPED text, so a Save/Cancel must re-derive it — a stale
+ pre-edit title cannot survive a save (the span is re-inserted
+ into the wrapper by the swap, attributes included). The re-
+ derivation is gated on the kb-desc-text class: only the clamped
+ row span gets the full-text title; the unclamped level's
+ (full text visible) keeps its no-title behavior, and an emptied
+ (cleared) cell loses its title."""
+ body = _fn(_js(), "wireDescriptionEdit")
+ close = body[body.find("function closeEditor(") : body.find("function openEditor()")]
+ gate_i = close.find('} else if (stored && textEl.classList.contains("kb-desc-text")) {')
+ set_i = close.find("textEl.title = stored;")
+ clear_i = close.find('textEl.removeAttribute("title")')
+ assert -1 < gate_i < set_i < clear_i, "gated set (stored + clamped span) → clear, in order"
+ assert close.count("textEl.title =") == 2, (
+ "exactly: pendingTitle (the marker's own) + stored (the hover full text) — nothing else"
+ )
+
+
+def test_styles_carry_the_one_line_clamp() -> None:
+ """Phase 99 (task 01, D1): the Description cell is one flex row —
+ .kb-desc-cell (flex + center + the 0.4rem gap that replaces the
+ button's old margin-left + min-width: 0) and .kb-desc-text (flex:
+ 1 1 auto + min-width: 0 — the flex item may shrink — + the
+ ellipsis triad). The column itself is white-space: nowrap (was
+ normal — the column width is the clamp's budget; the min/max width
+ + font-size stay). The button's margin-left rule is GONE, the
+ level block's margin-top rule is untouched, and the open editor
+ fills the flex wrapper (flex: 1 1 auto + min-width: 0). .kb-level
+ p is UNTOUCHED (the full unclamped description — D1), and the
+ phase-97 block carries no new hue (the phase-92 invariant)."""
+ css = _text(STYLES_CSS)
+ cell = _css_rule(css, ".kb-desc-cell")
+ for prop in ("display: flex", "align-items: center", "gap: 0.4rem", "min-width: 0"):
+ assert prop in cell, f".kb-desc-cell must carry {prop!r}"
+ text = _css_rule(css, ".kb-desc-text")
+ for prop in (
+ "flex: 1 1 auto",
+ "min-width: 0",
+ "overflow: hidden",
+ "text-overflow: ellipsis",
+ "white-space: nowrap",
+ ):
+ assert prop in text, f".kb-desc-text must carry {prop!r}"
+ col_i = css.find(".kb-folders-table td:nth-child(3) {")
+ assert col_i != -1
+ col = css[col_i : col_i + 400]
+ col = col[: col.find("\n}")]
+ assert "white-space: nowrap" in col, "the column is one line (was: normal)"
+ assert "white-space: normal" not in col
+ for prop in ("min-width: 18rem", "max-width: 44rem", "font-size: 0.88rem"):
+ assert prop in col, f"the column keeps {prop!r} (the clamp's budget)"
+ assert ".kb-folders-table .kb-summary-edit" not in css, (
+ "the button's margin-left is gone — the wrapper's gap replaces it"
+ )
+ lvl_i = css.find(".kb-level-body .kb-summary-edit")
+ assert lvl_i != -1
+ assert "margin-top: 0.5rem" in css[lvl_i : lvl_i + 80], (
+ "the level block's spacing rule is untouched"
+ )
+ fill_i = css.find(".kb-desc-cell .kb-summary-editor")
+ assert fill_i != -1
+ fill = css[fill_i : fill_i + 80]
+ assert "flex: 1 1 auto" in fill and "min-width: 0" in fill, (
+ "the open editor fills the flex wrapper"
+ )
+ # The level block keeps the FULL unclamped description (D1) — its
+ # rule is unchanged (no white-space/ellipsis additions).
+ m = re.search(r"(? rule must exist"
+ assert "white-space" not in m.group(1) and "text-overflow" not in m.group(1)
+ block = _css_block(css, "KB drill-down tree (phase 97", "Git sources page (phase 35)")
+ assert ".kb-desc-cell" in block and ".kb-desc-text" in block, (
+ "the clamp lives in the phase-97 tree region"
+ )
+ assert not re.search(r"#[0-9a-fA-F]{3,8}\b", block), "no new hue (phase-92 invariant)"
+ assert not re.search(r"rgba?\(", block), "no new hue (phase-92 invariant)"
+
+
+def test_module_docstring_documents_the_one_line_clamp() -> None:
+ """The house per-phase module-note convention: the phase-99
+ task-01 section records the flex wrapper structure (text flexes +
+ ellipsizes, button fixed), the VISUAL-only clamp (full text in the
+ DOM + on the hover title), the marker's own title, and the wrapper
+ as the editor's container (the level block's container stays
+ .kb-level-body)."""
+ js = _js()
+ header = js[: js.find("import { fetchIsAdmin }")]
+ assert "Phase 99 (task 01, D1)" in header
+ assert "kb-desc-cell" in header and "kb-desc-text" in header
+ assert "VISUAL only" in header, "the clamp is documented as visual only"
+ assert "title" in header, "the hover escape hatch is documented"
+ assert "kb-level-body" in header, "the level block's container is documented as kept"
+
+
+# ---------- the history integration (phase 99, task 02, D2) ----------
+# The drill state IS the history state: every drill pushes a state-
+# only entry (no URL change), Back/Forward adopt the entry's kb (or
+# reset to the top), the re-show aligns before the re-fetch, and the
+# anonymous gate installs no listeners. The browser proof lands in
+# the phase's E2E (task 03); this module pins the wiring.
+
+
+def test_popstate_adopts_the_entry_kb_or_resets_to_top() -> None:
+ """Phase 99 (task 02, D2): the window popstate — armed exactly
+ ONCE, in the ADMIN branch (after the whoami gate, next to the
+ refresh listener) — ADOPTS the popped entry's ``event.state.kb``
+ via the no-push variant (the browser owns its entries —
+ adopt/reset never push), and an entry WITHOUT a kb (the boot
+ entry, the router's view entries, any foreign state) RESETS the
+ drill to the TOP level. Rendering a currently-hidden view is
+ harmless: the router's own popstate (registered earlier, at shell
+ boot) owns the view switch for foreign entries; rag-internal
+ entries never change the pathname, so this listener's render is
+ the visible one."""
+ js = _js()
+ assert js.count('window.addEventListener("popstate"') == 1, (
+ "armed exactly once (mount-once — the router mounts a view ONCE)"
+ )
+ pop = js.find('window.addEventListener("popstate"')
+ gate = js.find("const admin = await fetchIsAdmin();")
+ refresh = js.find('root.addEventListener("bor:view-refresh"')
+ assert -1 < gate < refresh < pop, (
+ "armed in the admin branch, after the gate, next to the refresh listener"
+ )
+ body = js[pop : js.find("});", pop)]
+ kb_i = body.find("event.state && event.state.kb")
+ adopt_i = body.find("applyTarget(kb, false)")
+ reset_i = body.find("applyTarget({ source: null, folder: null }, false)")
+ assert -1 < kb_i < adopt_i < reset_i, (
+ "read event.state.kb → adopt (no push) / reset to the top"
+ )
+ assert "pushState" not in _code(body), ("adopt/reset never push (the browser owns its entries)")
+
+
+def test_refresh_alignment_adopts_history_state_before_the_refetch() -> None:
+ """Phase 99 (task 02, D2): the bor:view-refresh listener (the
+ phase-77 re-show) aligns ``current`` with ``history.state``
+ BEFORE ``loadTree()`` — a kb-carrying top entry (the active-link
+ re-click pushed NOTHING — the drilled entry is still on top)
+ KEEPS the drill (``applyTarget(kb, false)``); a kb-less entry (a
+ fresh nav visit) RESETS to the top level. The alignment adopts —
+ it never pushes."""
+ js = _js()
+ listener = js.find('root.addEventListener("bor:view-refresh"')
+ assert listener != -1
+ body = js[listener : js.find("});", listener)]
+ state_i = body.find("history.state && history.state.kb")
+ adopt_i = body.find("applyTarget(kb, false)")
+ reset_i = body.find("applyTarget({ source: null, folder: null }, false)")
+ load_i = body.find("loadTree();")
+ assert -1 < state_i < adopt_i < reset_i < load_i, (
+ "align (adopt kb / reset to top) BEFORE the re-fetch"
+ )
+ assert "pushState" not in _code(body), "the alignment never pushes"
+
+
+def test_anonymous_branch_installs_no_navigation_listeners() -> None:
+ """Phase 99 (task 02): the anonymous gate installs NO listeners at
+ all — no popstate, no refresh (the phase-16 rule: anonymous shows
+ the gate, fetches nothing, and owns no drill state — both
+ listeners are armed only in the admin branch)."""
+ js = _js()
+ start = js.find("if (!admin) {")
+ end = js.find("if (gateEl) gateEl.hidden = true;")
+ assert -1 < start < end, "the anonymous branch must exist"
+ branch = js[start:end]
+ assert "addEventListener" not in branch, (
+ "the anonymous branch arms no listeners (no popstate, no refresh)"
+ )
+
+
+def test_module_docstring_documents_the_history_integration() -> None:
+ """The house per-phase module-note convention: the phase-99
+ task-02 section records the push/adopt/reset rules — the
+ STATE-ONLY push (the URL STAYS PUT, no new route — the phase-76
+ deep-link surface untouched), the duplicate-push skip, the
+ popstate adopt/reset, the refresh alignment before the re-fetch,
+ the no-boot-push contract, the UNCHANGED (no-push)
+ resetVanishedLocation, and the UNTOUCHED router module."""
+ js = _js()
+ header = js[: js.find("import { fetchIsAdmin }")]
+ assert "Phase 99 (task 02, D2)" in header
+ assert "STATE-ONLY" in header, "the state-only push is documented"
+ assert "STAYS PUT" in header, "the URL-stays-put note"
+ assert "no duplicate history" in header, "the duplicate-push skip"
+ assert "ADOPTS" in header and "popstate" in header, "the popstate adopt"
+ assert "RESETS the drill to the TOP level" in header, "the reset branch"
+ assert "BEFORE the re-fetch" in header, "the refresh alignment"
+ assert "Boot pushes NOTHING" in header, "no pushState on boot"
+ assert "resetVanishedLocation is UNCHANGED" in header
+ assert "module is UNTOUCHED" in header, "the router module is untouched"
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