feat: phases 77–80 — navbar view refresh, static background, API tokens, history suggestion chips

Single consolidated commit for four completed, validated phases (77, 78,
79, 80). The pipeline run left all work uncommitted because the harness
commits only with PHASE_COMMIT=1 while child executors are forbidden from
committing; the phases themselves all passed validation and moved to
.agents/phases/complete/.

Phase 77 — navbar view refresh
- router.js dispatches bor:view-refresh on re-show / active re-click /
  popstate (gated on wasMounted; first show and boot exempt)
- History / RAG / Sources / Tuning re-fetch on refresh (admin branch);
  Chat deliberately excluded (stream survival)
- History "Refresh" button (admin-only, in-flight disable + status line)
- New story suite tests/e2e/test_navbar_refresh.py (7 tests)

Phase 78 — static background
- Removed the animated glow layers; static 44px grid over the flat --bg
  canvas; default and reduced-motion renders byte-identical
- Updated background/theme E2E suites; removed bg-glow test pins

Phase 79 — API tokens
- api_tokens model + migration 0012; hash-only token service
- Admin tokens API + Tokens admin view; POST /api/token-auth;
  live-revoking require_user on chat / suggestions / document content
- Frontend token gate with localStorage cache; anonymous E2E suites
  migrated to token login
- New story suite tests/e2e/test_api_tokens.py (9 tests)

Phase 80 — history suggestion chips
- last_questions() endpoint with SEED fallback; startNewChat() refetch
- Seed-semantics docs (config.py, .env.example, README)
- Integration state matrix + E2E suite rewritten to the 4 chip states

Also included: phase-76 report artifacts and the repo restore-test-db
skill (previously untracked), scripts/* ruff fixes from phase 77.

Final gate state (phase 80 final pass, covers everything above):
- uv run pytest --cov=app → 1637 passed, 0 failed, app/ coverage 99%
- uv run ruff check . && uv run pyright → clean, 0 errors
- Per-phase story E2E suites green in isolation

.agents/phases/complete/78_static_background/00_phase.md

@@ -0,0 +1,42 @@
+# Phase 78 — Static background (the animated glow layers are removed)
+
+**Source:** `TODO.md` L4 — "Remove the animated css background, it's too resource intensive"
+**Story:** n/a (TODO-derived — supersedes the fading-glow contract of `.agents/user_stories/background-no-motion.md` (phase 25), which itself superseded `background-animation.md` (phase 08))
+**Context:** `frontend/assets/styles.css` (the background block, ~lines 70–155: the STATIC grid texture on `body::before`, the three opacity-fading glow spots on `body::after` / `html::before` / `html::after`, the `@keyframes bg-glow-a/b/c` blocks, and the `prefers-reduced-motion` rule that stills those layers), `tests/unit/test_background_animation.py` + `tests/unit/test_background_no_motion.py` (source-level pins of the glow contract), `tests/e2e/test_background_no_motion.py` (the phase-25 suite — computed-style fade assertions) + `tests/e2e/test_background_animation.py` (the phase-22 E2E repurposed as the phase-25 no-motion regression — same story, `background-no-motion.md` — its fade assertions directly contradicted by the new contract), `tests/e2e/test_dark_tech_theme.py` (palette assertions — must stay green UNCHANGED), `frontend/assets/themes/` (configurable theme files — the built-in palette is the scope; verify they carry no glow rules).
+
+## Objective
+Delete the animated background: the three opacity-fading glow pseudo-layers and their keyframes stop existing — the owner reports they are too resource-intensive (the infinite CSS animations run continuously on every page, in every tab). The background becomes fully static: the 44px grid texture stays (it is static — zero animation cost).
+
+## Owner decisions (chat, 2026-09-06 — recorded per AGENTS.md rule 3)
+- **A2 confirmed:** "the animated css background" = the three fading glow spots (the ONLY animated part of the background). The static grid (`body::before`) STAYS. If the owner later wants the grid gone too, that is a one-line follow-up — out of scope here.
+- Other UI animations (the mobile nav slide, modal fades, typing dots, …) are NOT the background — they stay untouched.
+
+## Design (shared by both tasks)
+- `body::before` (the grid) stays BYTE-IDENTICAL: 44px cells, 1px lines at 60% `--line` alpha, the widened radial mask.
+- Deleted from `styles.css`: the `body::after`, `html::before`, and `html::after` glow rules; the three `@keyframes bg-glow-*` blocks; the `prefers-reduced-motion` rule whose only job was stilling these background layers — FIRST verify it references nothing else (if any non-background selector sits in it, strip only the background selectors).
+- The block's comment header (the phase-08/25 owner-direction prose) is replaced with a 3–4 line phase-78 note: the animated layers were removed at owner direction (TODO.md L4) as too resource-intensive; the static grid remains.
+- **Test rewrites (the house pattern — the premise changed, so the suites pin the NEW contract; the phase-76 precedent rewrote the phase-20 suite the same way):**
+  - `tests/unit/test_background_no_motion.py` → rewritten as the static-contract source pin: no `@keyframes bg-glow-*` in `styles.css`; none of the four pseudo-element selectors (`body::before/after`, `html::before/after`) carries an `animation:` declaration; `body::before` (the grid) is present with its 44px `background-size` and no animation.
+  - `tests/unit/test_background_animation.py` → **DELETED** (the phase-25 unit source-pin suite — its entire premise, three fading glows / exactly three `bg-glow-*` keyframe blocks, is gone; superseded chain 08 → 25 → 78).
+  - `tests/e2e/test_background_no_motion.py` → rewritten: Playwright computed-style checks — the three glow pseudo-elements report `animation-name: none` and no background-image; `body::before` still carries the grid background. Docstring updated to the phase-78 contract.
+  - `tests/e2e/test_background_animation.py` → **DELETED** (the phase-22 E2E repurposed as the phase-25 regression — its premise, that the glow layers fade, is removed; its story (`background-no-motion.md`) is carried on by the rewritten `test_background_no_motion.py`, the single story suite going forward).
+- `tests/e2e/test_dark_tech_theme.py` must stay green UNCHANGED — the PALETTE is untouched; only the light spots go.
+- `tests/unit/test_themes.py` + `frontend/assets/themes/indigo.css` — verify no glow/keyframe carry-over; if a theme file re-introduces animated background layers, the owner's direction applies to the whole background (report before deviating — the built-in palette is the confirmed scope).
+
+## Dependencies
+— (none)
+
+## Tasks
+1. `01_remove_glow_layers.md` — the CSS deletion + the four test-file rewrites/deletions.
+2. `02_regression_sweep_commit.md` — theme + smoke E2E, the visual check, the full gate, the atomic commit.
+
+## Testing & Quality
+- Unit: the rewritten source-pin file + `tests/unit/test_themes.py` green.
+- E2E: the rewritten static-background suite in isolation (DB up) + `test_dark_tech_theme.py` + `test_smoke.py` unchanged-green.
+- Coverage: **>90%** on `app/` (CSS-only phase — the floor is preserved).
+
+## Completion Criteria
+- [ ] No `animation` / `@keyframes` remains for the background in `styles.css` (`rg "bg-glow" frontend/ tests/ app/` → zero hits); the grid renders as before (visual check in a real browser).
+- [ ] The rewritten suites are green; the deleted suites are gone; `test_dark_tech_theme.py` green UNCHANGED.
+- [ ] `uv run pytest` green; `uv run pytest --cov=app --cov-report=term-missing` >90%; `uv run ruff check . && uv run pyright` clean.
+- [ ] One atomic `--no-gpg-sign` Conventional-Commits commit (e.g. `perf(ui): remove the animated background glow layers — static grid only`); phase dir moved to `.agents/phases/complete/`.