Integrates file sharing into the chat interface so uploaded files appear as messages in the chat timeline alongside text
messages.
Changes:
- Created FileMessage component for inline file display in chat
- Extracted FileItem component for reusable file UI across chat and file sharing tab
- Show "A file was deleted" placeholder instead of removing message when file deleted
- Hide message menu (3-dot) when no actions are available for file messages
- Add button backgrounds in chat context to hide text on hover
- Fix timing: local participant only sees file message after upload completes (progress: 100%)
Technical implementation:
- Added fileMetadata field to IMessage interface
- Added isDeleted flag to IFileMetadata for soft-delete state
- Middleware dispatches addMessage when files uploaded (ADD_FILE action)
- Middleware uses editMessage when files deleted to preserve chat history
- Minimal state retention (only isDeleted flag) for deleted files
This provides a unified messaging experience where file sharing is part of the conversation flow.
a62fa3f833