v2026.6.12-2

Theme System + Model Selector + Settings UX

🎨 Theme System

• 3 themes × 2 modes (light/dark) = 6 distinct visual combinations
  • 墨玉 Ink Jade: mint accent, cool tones (dark + light mode)
  • 宣纸 Rice Paper: jade accent, warm tones (light + dark mode)
  • 琉璃 Glaze: violet accent, glass-morphic (expanded from 17→86 CSS vars)
• Sidebar themed in all 6 combinations
• resolveColorScheme() now takes (theme, mode) for per-theme light/dark support

🎛️ Model Selector

• Integrated provider→model 2-step flow with inline API key input
• Full model catalog (all providers, not just allowlist-filtered)
• Gateway APIs: auth.storeApiKey, auth.listProviderStatus, models.list with fullCatalog param

⚙️ Settings Page

• Unified scroll layout: connection + appearance + quick settings scroll together
• Removed border radius slider (theme-preset only)
• Card-based sections with consistent styling

🐛 Fixes

• Fixed sidebar not themed in rice-paper and glaze
• Fixed TypeError: c.indexOf is not a function when configForm.agents.defaults.model is an object
• Fixed select dropdown invisible text (white-on-white in light mode)