- Update sidebar nav to use nav-item/nav-item-active classes
- Add Conversations nav item to main navigation
- Simplify sidebar session items with proper styling
- Refactor home running state channels panel with Chat button
- Update settings page header with heading-page class

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Replace Great Vibes with Caveat font to match design-system spec
for the "nexu alpha" heading on home page.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Visual design restoration from design-system PR #85:
- macOS-style Switch component (3 sizes + loading)
- Synced CSS design tokens
- Rewritten Home page (first-run + operational states)
- Settings provider panel with Enabled/Providers grouping
- Skills card Switch integration
- Sidebar nav refinements
- Caveat font for nexu alpha heading

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

- Remove Conversations from main nav (keep as section label only)
- Remove skill count from Skills nav item
- Add fixed sidebar toggle button next to traffic lights (desktop)
- Use logo image instead of text brand for desktop client
- Adjust spacing for desktop client header area

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

- Update Channels panel: connected channels show horizontal rows with
  icon + name + green dot + "Connected" button + "Chat ↗" link
- Not-connected channels display as dashed-border small cards with Cable icon
- Remove bottom quick action cards (conversations, skills, github star)
- Clean up unused imports (navigate, MessageSquare, Sparkles, GITHUB_SVG)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

- Change Hero from vertical-centered to horizontal layout (flex items-center gap-4)
- Use var(--color-success) for Running badge color consistency
- Reduce video size from w-32 to w-28 (matching prototype)
- Place model selector and message stats side-by-side in Hero right area
- Remove standalone CTA button (Chat in Feishu) - channels panel has Chat link
- Clean up unused code (getChannelShortNames, FeishuIconChat, firstChannel vars)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

- Click Connected button to disconnect channel (calls deleteApiV1ChannelsByChannelId)
- Add hover:text-danger and hover:bg-surface-3 styles matching prototype
- Auto-refresh channels list after disconnect

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

- Add border, background, padding (px-2.5 py-1 rounded-lg)
- Change text color from text-muted to text-primary
- Increase font size from 11px to 12px, add font-medium
- Increase icon sizes (14/13/10) and gap (1.5)
- Wrap provider logo in 4x4 centered container

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* fix: restore desktop-managed model catalog

* fix: allow selecting desktop cloud models

* chore: remove API smoke workflows

- Copy logo-black-1.svg to public/brand/
- Add Icon row with Help menu and GitHub link at sidebar bottom
- Add help menu with Documentation, Contact, Changelog links
- Add i18n keys for help menu items

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

- Remove General tab, directly show Providers panel
- Remove Current Model Selector from Settings page
- Update page header layout to match prototype (flex justify-between, mb-10)
- Simplify page structure

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

- Move Save/Remove buttons before model list for better visibility
- User doesn't need to scroll to find action buttons
- Change margin from mt-6 to mb-6 for proper spacing

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

- Add WebkitAppRegion: no-drag to prevent button from being draggable
- Adjust position from top-[6px] to top-[8px] to align with traffic lights
- Adjust left from 80px to 76px for better positioning

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

* fix(desktop): replace JSON skill ledger with SQLite and route ops through IPC

Replace the fragile .curated-state.json ledger with a SQLite database
(better-sqlite3) in the Electron main process. This eliminates race
conditions and state loss when the bundled-skills directory is wiped.

- Add SkillDb module with schema, install/uninstall tracking, bulk ops,
  and automatic migration from legacy .curated-state.json
- Refactor CatalogManager and curated-skills to use SkillDb instead of
  JSON file state
- Add IPC wrappers (skillhub:*) and switch web hooks to IPC in Electron
  with HTTP fallback for cloud
- Remove duplicate curated state ledger code from API sidecar routes
- Add controller skillhub route documentation for desktop vs cloud split
- Exclude sharp/@img and sqlite build artifacts from electron-builder
  asar to reduce package size (~130MB saved)
- Skip catalog sync and curated skill install in CI to avoid ClawHub
  rate-limit failures

* fix(desktop): make SkillDb init resilient and skip skillhub in CI

- Wrap SkillDb construction in try-catch so ABI mismatch between system
  Node.js and dev Electron doesn't crash app startup. CatalogManager
  falls back to no-db mode (skills still work, just no cross-restart
  uninstall persistence).
- Skip catalog sync and curated skill install when CI env var is set
  to avoid ClawHub rate-limit failures on shared runners.
- Add desktop vs cloud architecture documentation to controller
  skillhub routes.

* refactor: move skillhub from desktop IPC to controller HTTP

Move CatalogManager, SkillDb, and curated-skills from the Electron main
process into the controller so the web app always uses HTTP for skill
catalog/install/uninstall operations. This eliminates the webview IPC
bridge for skills and makes the controller self-contained for both
desktop and cloud deployments.

- Move skillhub modules to apps/controller/src/services/skillhub/
- Add SkillhubService wrapper with lifecycle management
- Replace stub skillhub routes with real CatalogManager-backed handlers
- Simplify web hooks to HTTP-only (remove IPC branching)
- Remove all skillhub IPC from desktop (index.ts, ipc.ts, host.ts)
- Pass SKILLHUB_STATIC_SKILLS_DIR and OPENCLAW_CURATED_SKILLS_DIR
  to controller sidecar via manifests.ts
- Remove better-sqlite3, clawhub, npm, @electron/rebuild from desktop
- Use PATH-based npm in controller instead of bundled npm dep
- Delete obsolete legacy skillhub-routes test

* fix(web): replace role=button div with semantic button element

Fixes biome a11y/useSemanticElements lint error on the channel card
in home.tsx. The outer div with role="button" is now a native <button>,
which handles keyboard events and accessibility automatically.