Auto-save status displays but never actually persists content to server

[coderanik]

Description

The editor has an autoSaveStatus state ("saved" | "saving" | "idle"), but setAutoSaveStatus is only ever called with "idle". It is never set to "saving" or "saved". The StatusBar displays "Auto-save on" but no HTTP-based save mechanism triggers. Content only persists via the Yjs WebSocket connection, which itself lacks error handling (see related bug about WebSocket errors).

Locations

• frontend/src/app/projects/[projectId]/page.tsx:63 — state declaration, initial "idle"
• frontend/src/app/projects/[projectId]/page.tsx:105 — reset to "idle" on file change
• frontend/src/components/StatusBar.tsx:34-49 — displays the (never-changing) status

Expected Behavior

1. A debounced save function should fire when editor content changes
2. Content should be sent to POST /projects/:projectId/files (which supports upsert)
3. autoSaveStatus should cycle through "saving" → "saved" on success, or show an error on failure

Difficulty: Medium