fix(tui): restore integrated Design and reliable LSP recovery

[filipeforattini]

Restore Design as a cyan primary mode in the fullscreen TUI. Tab and /design select it in the current conversation; /design-review opens that conversation's browser review. The TUI retains its session runner, permissions and questions while using the newer Design revision, asset, rendering, whiteboard and SVG-to-GIF services. Pre-0.22 prototypes can be imported without overwriting their source or private review files. Approval hands the exact revision to Plan in the same conversation and respects Design-only goals.

Fix Biome and other Node LSP initialization failures caused by rejected NODE_OPTIONS. Recovery now reads structured initialization stderr, isolates bounded retries per server, preserves quoted options, and monitors the replacement process rather than the exited original.

Validation:

• 149 focused Redcode tests passed; an additional queued-feedback interruption regression passed.
• 22 Core Design/rendering/MCP tests passed using the installed Chromium cache.
• TUI mode tests and all three app lifecycle tests passed.
• Real fullscreen TUI plus browser: create/write/publish, feedback, whiteboard, SVG-to-GIF download (128px, six frames), restart, and approval continuing in Plan.
• Real Biome 2.5.12 initialized with the rejected NODE_OPTIONS after recovery.
• Native Linux build, fullscreen TUI, preview, same-session feedback and SVG-to-GIF passed outside the checkout. Package typechecks passed for Redcode, TUI, Core and Design.

The review shell now has compact toolbars, theme-aware cyan controls and keyboard-accessible Review/Assets/Details tabs. CSS stays inside Shadow DOM, with the prototype isolated in its iframe; no Tailwind or global reset is added. Browser regression coverage verifies style isolation, desktop viewport sizing and mobile overflow.

Includes patch changesets. Release versions are left to the Version PR.

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