Synced from monorepo

Synced from monorepo

Changes:
- Retry Cloudflare 52x and other 5xx sampling errors
- Show non-200 API errors as clean TUI banners
- Sandbox: provision plan, durable metadata, and repos manifest types
- Refresh shell leader docs to match current code
- Let any queued item move up and down
- Toast when session-only modals open from the dashboard
- Pin markdown palette to ANSI16 hues
- Fix `/resume` search missing sessions loadable via `--resume`
- Only paint auto recap when the CLI is idle
- Collapse long bash permission bodies behind Ctrl-F
- Full-script permission showcase
- Contextualize Auto-mode security findings
- Always emit mouse/paste resets at teardown
- Keep plain queued prompts visible
- Mouse copy never drops a wide (CJK) grapheme at a selection boundary
- Show disabled MCP stubs only when re-enableable
- Keep syntax styles on wrapped diff lines
- Improve per-turn dashboard summary prompt (reply substance)
- Report the mode the session is actually in
- Dashboard exit/quit quits the CLI
- A send-now never silently destroys an earlier queued message
- Reflow narrow markdown tables in-cell
- Honor highlighted slash command on Enter
- `/delete` from dashboard attach returns to dashboard
- Surface disk-full during live sessions
- Probe first-party API key before skipping login
- Per-turn dashboard summary on agent rows
- Detect auto theme over SSH and tmux
- Continue in-flight parent work after background spawn
- Make text in a pinned sticky header selectable and copyable
- One Tab contract for every blocking card
- Register restored child sessions so `--resume` does not 404
- Extensions modal group-then-A-Z order and collapsible skills
- Re-point dashboard attach on `/new`

Source-Revision: 4d6d11372ab8f73026a78c45a7b7e7b1310eb39f