Fix: ki_health_reports ALTER TABLE user_id Migration, INSERT try/catch, Bericht immer zurückgeben (SW by-v807)

backend/database.py

@@ -1236,11 +1236,16 @@ def _migrate(conn_factory):
             CREATE TABLE IF NOT EXISTS ki_health_reports (
                 id         INTEGER PRIMARY KEY AUTOINCREMENT,
                 dog_id     INTEGER NOT NULL REFERENCES dogs(id) ON DELETE CASCADE,
-                user_id    INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+                user_id    INTEGER REFERENCES users(id) ON DELETE CASCADE,
                 bericht    TEXT    NOT NULL,
                 erstellt_at TEXT   NOT NULL DEFAULT (datetime('now'))
             )
         """)
+        # user_id nachträglich ergänzen falls Tabelle ohne diese Spalte erstellt wurde
+        try:
+            conn.execute("ALTER TABLE ki_health_reports ADD COLUMN user_id INTEGER REFERENCES users(id) ON DELETE CASCADE")
+        except Exception:
+            pass  # Spalte existiert bereits
         conn.execute("""
             CREATE INDEX IF NOT EXISTS idx_ki_health_reports_dog
                 ON ki_health_reports(dog_id, erstellt_at DESC)