feat(v2.1.0): API publique + Webhooks sortants + PWA

- Public API: /api/v1 (collections, pages, my-tasks) with token auth
- Token generation: POST /api/v1/token
- Outbound webhooks: /workspace/webhooks CRUD + fire_event dispatcher
- PWA: manifest.json endpoint
- CSRF exempt for /api/v1
- 73/73 tests passent (+6 tests v2.1)
- Version 2.0.0 → 2.1.0
- Docs: ROADMAP updated — 7/7 blocs, 52/52 features ✅

app/routers/workspace.py

@@ -352,6 +352,40 @@ async def export_csv(request: Request, collection_id: int):
     )
 
 
+# ── Webhooks Outbound Management ──
+
+@router.get("/webhooks")
+async def list_webhooks(request: Request):
+    with get_conn() as conn:
+        rows = conn.execute("SELECT * FROM webhook_subscriptions ORDER BY created_at DESC").fetchall()
+    return {"webhooks": [dict(r) for r in rows]}
+
+
+@router.post("/webhooks")
+async def create_webhook(request: Request):
+    body = await request.json() if request.headers.get("content-type") else {}
+    url = body.get("url", "").strip()
+    event = body.get("event", "page.created")
+    secret = body.get("secret", "")
+    if not url:
+        raise HTTPException(400, "url required")
+    with get_conn() as conn:
+        cur = conn.execute(
+            "INSERT INTO webhook_subscriptions (url, event, secret) VALUES (?,?,?)",
+            (url, event, secret),
+        )
+        conn.commit()
+    return {"id": cur.lastrowid, "url": url, "event": event, "status": "registered"}
+
+
+@router.delete("/webhooks/{wh_id}")
+async def delete_webhook(request: Request, wh_id: int):
+    with get_conn() as conn:
+        conn.execute("DELETE FROM webhook_subscriptions WHERE id=?", (wh_id,))
+        conn.commit()
+    return {"status": "deleted"}
+
+
 # ── Public Sharing ──
 
 @router.get("/public/{collection_id}")