feat: channel/category dropdown with API filter; AI auto-categories embedded

backend/main.py

@@ -37,6 +37,21 @@ async def startup():
 async def health():
     return {"status": "ok"}
 
+@app.get("/auto_categories.json")
+async def auto_categories():
+    import json, os
+    path = os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), "frontend", "src", "auto_categories.json")
+    if os.path.exists(path):
+        with open(path) as f:
+            return json.load(f)
+    return {}
+
+@app.get("/api/channels")
+async def get_channels(db: aiosqlite.Connection = Depends(get_db)):
+    cursor = await db.execute("SELECT DISTINCT channel_name, channel_id FROM videos ORDER BY channel_name")
+    rows = await cursor.fetchall()
+    return [dict(row) for row in rows]
+
 @app.get("/")
 async def root():
     from fastapi.responses import FileResponse
@@ -46,10 +61,15 @@ async def root():
 async def get_videos(
     status: Optional[str] = "pending",
     limit: int = 50,
+    channel: Optional[str] = None,
     db: aiosqlite.Connection = Depends(get_db)
 ):
-    query = "SELECT * FROM videos WHERE status = ? ORDER BY publish_date DESC, created_at DESC LIMIT ?"
-    cursor = await db.execute(query, (status, limit))
+    if channel:
+        query = "SELECT * FROM videos WHERE status = ? AND channel_name = ? ORDER BY publish_date DESC, created_at DESC LIMIT ?"
+        cursor = await db.execute(query, (status, channel, limit))
+    else:
+        query = "SELECT * FROM videos WHERE status = ? ORDER BY publish_date DESC, created_at DESC LIMIT ?"
+        cursor = await db.execute(query, (status, limit))
     rows = await cursor.fetchall()
     return [dict(row) for row in rows]