Intent 0.2.29 Release Note

Highlights:
- Notification MCP tool (`emit_notification`) lets external services push notifications into a workspace and wake specific agents.
- Workspace scripts now persist in `.intent/config.json` so they're shared across sessions.
- Cmd+/ shortcut wired up for the enhance-prompt action in workspace creation.
- Codex model list is now dynamic, matching the models your account has access to.
- Streaming status messages simplified — only the 90-second stalled threshold shows a warning, removing false-alarm "taking longer than usual" messages at 30s/60s.

Fixes:
- Agent chat not streaming on workspace revisit.
- User messages lost during workspace switch.
- Optimistic messages disappearing on force-submit (⌘Enter).
- Space bar not working in spec comments.
- Terminal toggle requiring double-click.
- Browser panels opening in the wrong workspace.
- Broken "Learn More" link in MCP settings.
- Preferred model not resolving for general agents.
- PR not linking to review workspaces.
- Terminal shortcuts blocked when the tab bar was focused.

For developers:
- Browser-mode rendering — Intent can now run in a regular browser while Electron is running, with full data access via an HTTP/WebSocket bridge.