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

frontend/assets/tuning.js

@@ -44,6 +44,19 @@
  *     exports (zero extra requests; the flag decides whether the note
  *     list loads at all, the Sources-page gate pattern).
  *
+ * Phase 77 (task 02) — the re-show refresh: the shell router
+ * dispatches `bor:view-refresh` on the view's section when the user
+ * RE-SHOWS an already-mounted view (a switch back onto it, a re-click
+ * of the Tuning nav link, or back/forward) — the first show (mount)
+ * and boot never (the mount's own load is the first fetch). This
+ * module listens on root and re-runs `loadNotes()` (renderNotes
+ * already clears the list, so a re-call replaces it). A FAILED
+ * refresh keeps the last rendered list — loadNotes's documented
+ * contract (progressive enhancement, never a blanked panel). The
+ * listener is armed only in the ADMIN branch, after the whoami gate
+ * passes: anonymous gets the empty-state view and never fetches
+ * (the phase-27 gate).
+ *
  * Anonymous-safe (phase 27 task 03, unchanged in the shell): the
  * header hides the "Tuning" nav link for anonymous visitors; a DIRECT
  * anonymous URL still gets a safe view — loadNotes() only runs when
@@ -348,5 +361,15 @@ export async function mount(root) {
    * (zero extra requests). An anonymous visitor gets the view frame
    * with the empty state, and the create form 403s gracefully on
    * submit if one tries. */
-  if (await fetchIsAdmin()) loadNotes(); // phase 27: the list is admin-only
+  /* Phase 77 (task 02): a user-initiated re-show of this already-
+     mounted view makes the router dispatch bor:view-refresh on the
+     section — re-run loadNotes then (renderNotes clears the list
+     first, so a re-call replaces it; a failed refresh keeps the last
+     rendered list — loadNotes's documented contract). Armed ONLY
+     here, after the whoami gate passed: anonymous never fetches
+     (the phase-27 gate). */
+  if (await fetchIsAdmin()) {
+    root.addEventListener("bor:view-refresh", () => loadNotes());
+    loadNotes(); // phase 27: the list is admin-only
+  }
 }