Logout (invalidate session)
Logout (invalidate session)
Invalidates session token, clears cookie, and deletes nonce.
**Security:**
- Prevents JWT reuse by deleting associated nonce
- Clears `ouster_session` cookie
- Removes session token from device storage
**Safety:**
- Returns 200 OK even if no active session (idempotent)
Response
Logged out successfully
Errors
500
Internal Server Error

