AI Implementation feature(880): Authenticated Shell, Quick Tabs and Change Password 1.04 (#19)

docs/architecture/key-files.md

@@ -3,7 +3,7 @@ type: architecture
 title: Key Files Index
 description: One-line responsibility for important source files, including authenticated event streaming.
 tags: [architecture, index, key-files]
-timestamp: 2026-07-21T23:25:00Z
+timestamp: 2026-07-22T09:35:00Z
 ---
 
 # Backend
@@ -34,8 +34,8 @@ timestamp: 2026-07-21T23:25:00Z
 | `frontend/src/app/core/services/auth.service.ts` | Signal-backed access token and current-user state. |
 | `frontend/src/app/core/services/authenticated-event-source.service.ts` | Fetch-based authenticated SSE transport with frame parsing and abort support. |
 | `frontend/src/app/core/services/event-status.store.ts` | Event state signal store and one-second countdown timer. |
-| `frontend/src/app/core/services/event-status.pure.ts` | Event payload types and pure countdown helpers. |
-| `frontend/src/app/features/shell/header/shell-header.component.ts` | Shell title, status LED, countdown, and user menu. |
+| `frontend/src/app/core/services/event-status.pure.ts` | Event payload types, pure countdown helpers, and the `LED_COLOR_BY_STATE` map used by the shell LED. |
+| `frontend/src/app/features/shell/header/shell-header.component.ts` | Shell title, status LED (size/shape only — color comes from the pure map via `[style.background-color]`), countdown, and user menu. |
 | `frontend/src/app/features/shell/tabs/quick-tabs.component.ts` | Main shell navigation tabs. |
 | `frontend/src/app/features/shell/change-password/change-password-modal.component.ts` | Change-password form modal. |
 | `tests/frontend/authenticated-event-source.spec.ts` | Tests SSE authorization and frame transport behavior. |