d700ba7569
- handle_share_api now checks X-Share-Password header against bcrypt hash
before returning trip data. Returns 401 with {protected: true} if password
required but not provided/incorrect
- share_password now stored as bcrypt hash, not plaintext
- All plaintext password logging removed from handle_share_verify
- handle_share_verify uses bcrypt.checkpw instead of string equality
- Migration invalidates existing plaintext share passwords (< 50 chars)
- Removed dead hash_password function (used hashlib.sha256)
- Added bcrypt to trips Dockerfile
Closes #3