phase: 118_summary_seed_context

**Phase 118 final verification pass — complete.** All criteria verified; 4 pre-existing defects found and fixed.

- **Verified:** summary-seed wiring (`select_suggested` top-5 no-floor → summary blocks, no full text in HIGH prompt), all-doc markdown summaries + NULL backfill (`summary_backfilled`, no `sources_meta` bump), `read` adds full text with `read_docs`-only dedupe, `done.sources` = suggested+read / durable record = suggested+related+read + `suggested=N` log line (seen live in E2E), byte-locked PERSONA/LOW/TOOLS_SECTION, battery gate PASS recorded in `TOOL_CALLING_TESTING.md` §10 (turbo 2026-09-16: 1/2/4 GREEN, cond-3 reported 9/10 per A7, contract 21/21, caps 0).
- **Defects fixed (all pre-existing, none phase-118):** ① `ChatMessage` schema missing the phase-113 `related` key → `extra="forbid"` 422'd every done-time auto-save of grounded turns with a related tier, leaving `message_count=1` (root cause of `test_share_chat` 3F; browser-level instrumentation proved the PUT 422) — added the field + unit/integration pins; ② `test_theme_semantic_completion` pins stale vs phase-117 debox (border/chip removed) — re-targeted to assert border/chip *absence*; ③ `test_header_consistency` `<26`px pin red on 26.125px native date-input line — bound relaxed to `<34` (wrap-detection intent kept); ④ `test_navbar_refresh` bor.chat.v1 key set updated for `related`.
- **Test/lint/coverage:** `uv run pytest --cov=app --cov-report=term-missing` → **2506 passed, app/ 99%** (>90%); `uv run ruff check . && uv run pyright` → clean, 0 errors.
- **E2E:** new story suite in isolation → **2 passed**; full 103-suite matrix sweep (each isolated) → **all 103 green** after the fixes; `test_share_chat` 4 passed, `test_theme_semantic_completion` 8 passed, `test_header_consistency` 3 passed, `test_navbar_refresh` 7 passed.
- **Deviations:** none from LOCKED decisions. Note: orphaned diagnostic uvicorn processes briefly made E2E sessions exercise stale code — killed and re-verified; a sweep-regenerated tracked screenshot was restored. No commits made (harness commits).
- **Completion criteria:** all 7 ✅ (commit/phase-move is the harness's step).
- **Next pending phase:** none — `todo/` holds only this phase's overview pending the harness move.

tests/integration/test_import_extensions_env.py

@@ -117,8 +117,9 @@ def test_novel_extension_imports_end_to_end(mock_llm_port: int, db: Session) ->
             summary.files, summary.added, summary.unchanged, summary.updated, summary.errors
         ) == (2, 2, 0, 0, 0)
         assert summary.formats == {"sh": 1, "md": 1}
-        # The .sh file is non-markdown → exactly one lite summary (phase 30).
-        assert (summary.summaries, summary.summary_errors) == (1, 0)
+        # Phase 118 (A2): EVERY doc gets a lite summary — the novel
+        # ``.sh`` file AND the markdown control.
+        assert (summary.summaries, summary.summary_errors) == (2, 0)
 
         sh = db.scalar(
             select(Document).where(
@@ -148,15 +149,20 @@ def test_novel_extension_imports_end_to_end(mock_llm_port: int, db: Session) ->
         assert len(schunks) == 1 and schunks[0].position == -1
         assert schunks[0].embedding is not None
 
-        # The markdown control doc imported too — but markdown never
-        # gets a summary (phase 30).
+        # The markdown control doc imported too — AND got the mock
+        # ``SUMMARY_MODE`` digest (phase 118, A2: markdown summarized).
         note = db.scalar(
             select(Document).where(
                 Document.source == SOURCE, Document.path == MD_REL
             )
         )
         assert note is not None
-        assert note.summary is None
+        assert note.summary is not None
+        assert note.summary.startswith("This document covers extension fixture note")
+        assert f"Source: {SOURCE}/{MD_REL}" in note.summary
+        note_schunks = [c for c in note.chunks if c.is_summary]
+        assert len(note_schunks) == 1 and note_schunks[0].position == -1
+        assert note_schunks[0].embedding is not None
         assert [c for c in note.chunks if not c.is_summary]
     finally:
         _cleanup_source(db, SOURCE)
@@ -175,7 +181,8 @@ def test_narrowing_to_md_still_excludes_the_novel_extension(
             summary.files, summary.added, summary.unchanged, summary.updated, summary.errors
         ) == (1, 1, 0, 0, 0)
         assert summary.formats == {"md": 1}
-        assert summary.summaries == 0
+        # Phase 118 (A2): the md-only run still summarizes the note.
+        assert summary.summaries == 1
         assert db.scalar(
             select(Document).where(
                 Document.source == SOURCE, Document.path == SH_REL