- Add diff preview for Write/Edit tools: reads current file via new IPC
(TEAM_TOOL_APPROVAL_READ_FILE), shows unified diff using existing DiffViewer
- Fix Allow button doing nothing: re-throw errors from store instead of
silently swallowing, show error message in UI, add 10s safety timeout
- Fix "No active process" during provisioning: use getTrackedRunId() to
find process in both provisioning and alive maps
- Add 5s stdin.write timeout to prevent hanging when process dies
- Add syntax highlighting for tool input preview (JSON, bash, etc.)
- Add team color/name badge from ToolApprovalRequest (works during provisioning)
- Conditionally show team badge only when user is on a different team page
- Format elapsed time as Xm Ys when over 60 seconds
- Replace native <select> with Radix UI Select in settings panel
