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/git-sources.js

@@ -36,6 +36,7 @@
  *     (the exact Sources page gate pattern, and NO /api/git-sources
  *     call is made); admin → gate hidden, #git-sources-content
  *     revealed, loadSources().
+ *
  *   • loadSources() — GET /api/git-sources → the table rows
  *     (#git-sources-tbody), the env-fallback note's visibility
  *     (from_env), and the empty state. Each row leads with its kind
@@ -128,6 +129,20 @@
  *     aria-live=polite): the screen-reader confirmation for loads,
  *     adds, and removals.
  *
+ * 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 Sources 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 `loadSources()`, whose re-call
+ * resets all three list states: the populated render (renderSources
+ * replaces the tbody + re-syncs the empty state) and the load error
+ * (hideLoadError() runs on the success path, so an error followed by
+ * a successful refresh clears it). The listener is armed only in the
+ * ADMIN branch, after the whoami gate passes: anonymous shows the
+ * gate and never fetches /api/git-sources (the Sources-page gate
+ * pattern).
+ *
  * Scope boundary (phase locked decisions): adding a git repo does
  * NOT clone — the sync service (server-side) does that. Removing a
  * source, however, performs the FULL cleanup server-side (phase 69):
@@ -908,6 +923,13 @@ export async function mount(root) {
     }
     if (gateEl) gateEl.hidden = true;
     if (contentEl) contentEl.hidden = false;
+    /* 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 loadSources then (its re-call resets the
+       populated / empty / load-error states). Armed ONLY here, after
+       the whoami gate passed: anonymous shows the gate and must never
+       fetch /api/git-sources (the Sources-page gate pattern). */
+    root.addEventListener("bor:view-refresh", () => loadSources());
     await loadSources();
     // Phase 64 (task 05): re-attach a running scan (a reload mid-scan
     // resumes the Processing state) or re-render a terminal run's