Val Alexander ead8be96fd Add tweakcn custom theme import ...

Adds a browser-local custom tweakcn theme slot while preserving the existing built-in themes.

Includes:
- tweakcn share-link import, validation, persistence, and custom theme rendering
- Custom option in Appearance and Quick Settings
- responsive/config toolbar and chat tool-card polish from follow-up review
- security hardening for bounded fetches, CSS token validation, redirect handling, and fail-closed unreadable payloads

Verification:
- OPENCLAW_LOCAL_CHECK=0 pnpm check:changed
- GitHub CI clean on 6ff13a1b33

2026-04-24 20:36:45 -05:00

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2026-04-22-tweakcn-custom-theme-import-design.md

Add tweakcn custom theme import

2026-04-24 20:36:45 -05:00