update

backend/app/config.py

@@ -9,4 +9,6 @@ DB_PATH = Path(os.getenv("DB_PATH", DATA_DIR / "desktop.db"))
 # Jeder Client schickt diesen Token als "Authorization: Bearer <Token>"
 SYNC_TOKEN = os.getenv("SYNC_TOKEN", "")
 
-COLLECTIONS = ("events", "todos", "notes", "folders")
+# files: Dateien der PCs (Claude-Sitzungen), kommen nur zurück, wenn der Client sie anfragt
+COLLECTIONS = ("events", "todos", "notes", "folders", "files")
+BASE_COLLECTIONS = COLLECTIONS[:-1]

backend/app/main.py

@@ -5,7 +5,7 @@ from fastapi import FastAPI, Header, HTTPException
 from pydantic import BaseModel
 
 from . import db
-from .config import COLLECTIONS, SYNC_TOKEN
+from .config import BASE_COLLECTIONS, COLLECTIONS, SYNC_TOKEN
 
 logging.basicConfig(level=logging.INFO, format="%(asctime)s %(levelname)s %(message)s")
 log = logging.getLogger("app")
@@ -29,10 +29,18 @@ def check_token(authorization: str):
 
 class SyncIn(BaseModel):
     since: int = 0
-    events: list[dict] = []
-    todos: list[dict] = []
-    notes: list[dict] = []
-    folders: list[dict] = []
+    events: list[dict] | None = None
+    todos: list[dict] | None = None
+    notes: list[dict] | None = None
+    folders: list[dict] | None = None
+    files: list[dict] | None = None
+
+    # Zurück kommen die Sammlungen der Anfrage. Ohne Sammlungen die vier Basis-Sammlungen,
+    # Dateien nur auf ausdrückliche Anfrage, sonst zieht das Handy Sitzungen mit.
+    @property
+    def requested(self):
+        named = [c for c in COLLECTIONS if getattr(self, c) is not None]
+        return named or list(BASE_COLLECTIONS)
 
 
 @app.get("/api/health")
@@ -53,14 +61,14 @@ def sync(body: SyncIn, authorization: str = Header(default="")):
         accepted = 0
         rejected = {collection: [] for collection in COLLECTIONS}
         for collection in COLLECTIONS:
-            for item in getattr(body, collection):
+            for item in getattr(body, collection) or []:
                 ok, stored = db.merge(conn, collection, item)
                 if ok:
                     accepted += 1
                 else:
                     rejected[collection].append(stored)
         out = {}
-        for collection in COLLECTIONS:
+        for collection in body.requested:
             changed = db.since(conn, collection, body.since)
             ids = {item["id"] for item in changed}
             out[collection] = changed + [item for item in rejected[collection] if item["id"] not in ids]

backend/tests/test_sync.py

@@ -90,3 +90,18 @@ def test_seit_cursor_liefert_nur_neues(client):
     sync(client, events=[{"id": "e2", "updated": "2026-09-19T10:00:00.000Z", "title": "b"}])
     r = sync(client, since=1)
     assert [e["id"] for e in r["events"]] == ["e2"]
+
+
+def test_dateien_nur_auf_anfrage(client):
+    sync(client, files=[{"id": "-home-x/s1.jsonl", "updated": "2026-09-22T10:00:00.000Z", "content": "zeile"}])
+    # Handy und Extension fragen ohne files: nichts davon in der Antwort
+    r = sync(client, events=[], todos=[], notes=[], folders=[])
+    assert "files" not in r and r["events"] == []
+    assert "files" not in sync(client)
+    # Nur Dateien angefragt: nur Dateien zurück, Stand zählt trotzdem
+    r = sync(client, files=[])
+    assert [f["id"] for f in r["files"]] == ["-home-x/s1.jsonl"] and "events" not in r
+    assert r["cursor"] == 1
+    # Tombstone gewinnt mit neuerem updated
+    r = sync(client, files=[{"id": "-home-x/s1.jsonl", "updated": "2026-09-22T11:00:00.000Z", "deleted": True}])
+    assert r["files"][-1]["deleted"] is True