v0.124.0: Deep and shallow security review modes, login redirect URIs, and stability fixes

New features

- Deep and shallow security review modes - /security-review now supports dedicated deep and shallow review modes
- Login redirect URIs - The login flow now supports a redirect URI so you land where you started after signing in (app)

Improvements

- Sharper fuzzy search - Refined fuzzy search behavior in the CLI
- Minimum context savings shown - Context savings now display a clear minimum percent for easier interpretation
- Aligned MCP status indicators - MCP server status indicators now line up consistently
- Faster setting updates - Settings changes are applied in place, avoiding unnecessary MCP and skill refetches (app)
- Light mode polish - Small component styling refinements in light mode

Bug fixes

- Bounded resume history - Resume now renders a bounded history so large sessions stay responsive
- Message send flash - Fixed a visual flash when submitting a message (app)
- Desktop tutorial in desktop app - The "install desktop" onboarding step is now skipped when you're already in the desktop app (app)