Feature: ORS-Wochenlimit (20/Woche), Tages-Cache, Privilegien-Bypass, Datenschutz-Update — SW by-v480, APP_VER 457

backend/database.py

@@ -1411,3 +1411,14 @@ def _migrate(conn_factory):
             if col not in existing_h:
                 conn.execute(f"ALTER TABLE health ADD COLUMN {col} {typedef}")
                 logger.info(f"Migration: health.{col} hinzugefügt.")
+
+        # Route-Suggest Rate-Limiting
+        conn.executescript("""
+            CREATE TABLE IF NOT EXISTS route_suggest_usage (
+                user_id  INTEGER NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+                week     TEXT    NOT NULL,
+                count    INTEGER NOT NULL DEFAULT 0,
+                PRIMARY KEY (user_id, week)
+            );
+        """)
+        logger.info("Migration: route_suggest_usage Tabelle bereit.")