Fix: Magic Link INSERT fehlte email-Feld und Platzhalter

magic_links Tabelle erfordert email NOT NULL.
INSERT um email-Spalte und Parameter ergaenzt.

src/auth_router.py

@@ -47,9 +47,9 @@ async def request_magic_link(req: LoginRequest, db=Depends(get_db)):
     expires = datetime.now(timezone.utc) + timedelta(minutes=MAGIC_LINK_EXPIRE_MINUTES)
 
     await db.execute(
-        """INSERT INTO magic_links (user_id, token, code, expires_at, purpose)
-           VALUES (?, ?, ?, ?, 'globe_login')""",
-        (user["id"], token, code, expires.isoformat()),
+        """INSERT INTO magic_links (user_id, email, token, code, expires_at, purpose)
+           VALUES (?, ?, ?, ?, ?, 'globe_login')""",
+        (user["id"], email, token, code, expires.isoformat()),
     )
     await db.commit()