v0.5.0

Added

• Safe In-App Text & JSON Live Editor:
  • FileEditController: Live editor controller handling edit() modal rendering and update() POST save actions.
  • FileEditValidationService: Pre-save validation engine checking payload size bounds (500 KB limit) and JSON syntax error line detection (json_decode() error reporting).
  • FileVersionService: Attachment revision engine supporting overwrite updates and versioned revision file creation (filename_v2.ext).
  • Template/file/edit.php: Interactive editor modal view with syntax status indicators, line-number gutter, live character counters, and save mode selection (overwrite vs revision).
  • "Edit File" action link added to file attachment dropdown (Template/file/dropdown.php) for text/JSON/Markdown attachments when user has write access.
• Expanded Test Suite:
  • 54 new unit & integration tests covering pre-save validation, JSON syntax error estimation, version filename generation, edit modal rendering, and write ACL enforcement (total 240 tests, 789 assertions).

Changed

• Updated Plugin.php version to 0.5.0 and registered /b/:project_id/task/:task_id/file/:file_id/edit and update routes.