Replace IndexSyncAgent with FileWatcher and enhance indexing status display

Co-authored-by: Mte90 <[email protected]>

Author: Copilot

.env.example

@@ -31,9 +31,12 @@ CODING_MODEL=gpt-4o-code-preview
 UVICORN_HOST=127.0.0.1
 UVICORN_PORT=8080
 
-# IndexSyncAgent configuration
-# Enable/disable the background agent that syncs indexing status (default: true)
-INDEX_SYNC_ENABLED=true
+# FileWatcher configuration
+# Enable/disable the background file watcher that monitors project changes (default: true)
+FILE_WATCHER_ENABLED=true
 
-# Interval in seconds between status reconciliation runs (default: 30, minimum: 5)
-INDEX_SYNC_INTERVAL=30
+# Interval in seconds between directory scans (default: 10, minimum: 5)
+FILE_WATCHER_INTERVAL=10
+
+# Debounce time in seconds before processing detected changes (default: 5, minimum: 1)
+FILE_WATCHER_DEBOUNCE=5

REST_API.md

@@ -101,7 +101,7 @@ Returns list of all registered projects.
 GET /api/projects/{project_id}
 ```
 
-Returns details for a specific project.
+Returns details for a specific project including indexing statistics.
 
 **Response:**
 ```json
@@ -112,10 +112,20 @@ Returns details for a specific project.
   "database_path": "~/.picocode/projects/1234567890abcdef.db",
   "status": "ready",
   "created_at": "2025-11-06T14:30:00",
-  "last_indexed_at": "2025-11-06T15:00:00"
+  "last_indexed_at": "2025-11-06T15:00:00",
+  "indexing_stats": {
+    "file_count": 150,
+    "embedding_count": 450,
+    "is_indexed": true
+  }
 }
 ```
 
+**Indexing Stats Fields:**
+- `file_count`: Number of files indexed in the project
+- `embedding_count`: Number of embeddings (chunks) generated
+- `is_indexed`: Boolean indicating if project has any indexed files
+
 ### Delete Project
 
 ```http