docs: update status and fix stale frontend docs (#446)

STATUS.md:
- add theme system (PR #441): CSS custom properties, dark/light/system toggle
- add mobile UX improvements (PR #443): ProfileMenu, /upload page, portal overhaul
- add player scroll timing fix (PR #445): faster animations, "view track" link
- add CI optimization (PR #444): path-based hook skipping
- add issue #440 to new features list (unified search)
- update last modified date

docs/frontend/toast-notifications.md:
- document action links feature (was listed as "not implemented")

docs/frontend/state-management.md:
- update preferences to include theme and hidden tags
- mention ProfileMenu component for mobile
- fix upload flow to reference /upload page instead of portal

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude <[e-mail]>

STATUS.md

···
 
 ### December 2025
 
+#### light/dark theme and mobile UX overhaul (Dec 2-3)
+
+**theme system** (PR #441):
+- replaced hardcoded colors across 35 files with CSS custom properties
+- semantic tokens: `--bg-primary`, `--text-secondary`, `--accent`, etc.
+- theme switcher in settings: dark / light / system (follows OS preference)
+- removed zen mode feature (superseded by proper theme support)
+
+**mobile UX improvements** (PR #443):
+- new `ProfileMenu` component — collapses profile, upload, settings, logout into touch-optimized menu (44px tap targets)
+- dedicated `/upload` page — extracted from portal for cleaner mobile flow
+- portal overhaul — tighter forms, track detail links under artwork, fixed icon alignment
+- standardized section headers across home and liked tracks pages
+
+**player scroll timing fix** (PR #445):
+- reduced title scroll cycle from 10s → 8s, artist/album from 15s → 10s
+- eliminated 1.5s invisible pause at end of scroll animation
+- fixed duplicate upload toast (was firing twice on success)
+- upload success toast now includes "view track" link
+
+**CI optimization** (PR #444):
+- pre-commit hooks now skip based on changed paths
+- result: ~10s for most PRs instead of ~1m20s
+- only installs tooling (uv, bun) needed for changed directories
+
+---
+
 #### tag filtering system and SDK tag support (Dec 2)
 
 **tag filtering** (PRs #431-434):
···
 - no AIFF/AIF transcoding support (#153)
 
 ### new features
+- issue #440: unified search across tracks, artists, albums, and tags
 - issue #146: content-addressable storage (hash-based deduplication)
 - issue #155: add track metadata (genres, tags, descriptions)
 - issue #334: add 'share to bluesky' option for tracks
···
 
 ---
 
-this is a living document. last updated 2025-12-02.
+this is a living document. last updated 2025-12-03.

docs/frontend/state-management.md

···
 - integrates with main tracks cache for like status
 
 ### preferences
-- user preferences managed through `SettingsMenu.svelte`
+- user preferences managed through `ProfileMenu.svelte` (mobile) and `SettingsMenu.svelte` (desktop)
+- theme selection: dark / light / system (follows OS preference)
 - accent color customization
 - auto-play next track setting
+- hidden tags for discovery feed filtering
 - persisted to backend via `/preferences/` API
 - localStorage fallback for offline access
-- no dedicated state file - integrated into settings component
+- no dedicated state file - integrated into settings components
 
 ### toast (`frontend/src/lib/toast.svelte.ts`)
 - global notification system
···
 
 ### upload flow
 
-1. user clicks upload on portal page
+1. user clicks upload on dedicated `/upload` page (linked from portal or ProfileMenu)
 2. `uploader.upload()` called - returns immediately
 3. user navigates to homepage
 4. homepage renders cached tracks instantly (no blocking)
 5. upload completes in background
-6. success toast appears
+6. success toast appears with "view track" link
 7. cache refreshes, homepage updates with new track
 
 this avoids HTTP/1.1 connection pooling issues by using cached data instead of blocking on fresh fetches during long-running uploads.

docs/frontend/toast-notifications.md

···
 - **type-safe**: full TypeScript support with exported types
 - **consistent patterns**: matches other Svelte 5 rune-based state managers
 
+### action links
+
+toasts can include an optional action link:
+
+```typescript
+export interface ToastAction {
+  label: string;
+  href: string;
+}
+
+// usage
+toast.success('track uploaded!', 3000, { label: 'view track', href: `/track/${trackId}` });
+```
+
+action links render as styled anchor tags. internal links stay in the same tab; external links open in new tabs.
+
 ## future enhancements
 
 potential additions (not currently implemented):
 - pause on hover to prevent auto-dismiss
 - manual dismiss buttons
 - progress bars for visual timing
-- action buttons (e.g., "undo" for reversible operations)
 - toast queue limiting to prevent spam