docs(18-05): complete user profiles and public sharing client plan

- Create SUMMARY.md with execution results
- Update STATE.md with progress and decisions
- Mark PROF-01 through PROF-05 requirements complete

.planning/phases/18-global-items-public-profiles/18-05-SUMMARY.md

@@ -0,0 +1,102 @@
+---
+phase: 18-global-items-public-profiles
+plan: 05
+subsystem: ui
+tags: [react, tanstack-router, tanstack-query, profiles, public-setups, tailwind]
+
+requires:
+  - phase: 18-global-items-public-profiles
+    plan: 03
+    provides: "Profile API endpoints, public setup endpoint, isPublic field"
+provides:
+  - "usePublicProfile and useUpdateProfile hooks"
+  - "ProfileSection component for settings page"
+  - "Public profile page at /users/$userId"
+  - "PublicSetupCard component"
+  - "Setup visibility toggle (isPublic) on setup detail page"
+  - "Public badge on setup list cards"
+affects: []
+
+tech-stack:
+  added: []
+  patterns: ["Profile data fetched via usePublicProfile(userId) for form pre-population"]
+
+key-files:
+  created:
+    - "src/client/hooks/useProfile.ts"
+    - "src/client/components/ProfileSection.tsx"
+    - "src/client/routes/users/$userId.tsx"
+    - "src/client/components/PublicSetupCard.tsx"
+  modified:
+    - "src/client/routes/settings.tsx"
+    - "src/client/routes/setups/$setupId.tsx"
+    - "src/client/hooks/useSetups.ts"
+    - "src/client/components/SetupCard.tsx"
+    - "src/client/components/SetupsView.tsx"
+
+key-decisions:
+  - "Profile data loaded via usePublicProfile(userId) rather than extending /auth/me response"
+  - "isPublic toggle placed in setup detail action bar as a button with globe icon"
+  - "Public badge shown on SetupCard in list view for visual indicator"
+
+patterns-established:
+  - "Public profile route pattern: /users/$userId with TanStack Router file-based routing"
+  - "Profile edit via dedicated ProfileSection component in settings page"
+
+requirements-completed: [PROF-01, PROF-02, PROF-03, PROF-04, PROF-05]
+
+duration: 5min
+completed: 2026-04-05
+---
+
+# Phase 18 Plan 05: User Profiles & Public Sharing Client Summary
+
+**Profile edit UI in settings with avatar upload, public profile page with setup listing, and setup visibility toggle with globe icon**
+
+## Performance
+
+- **Duration:** 5 min
+- **Started:** 2026-04-05T11:15:08Z
+- **Completed:** 2026-04-05T11:19:47Z
+- **Tasks:** 3 (2 auto + 1 checkpoint auto-approved)
+- **Files modified:** 9
+
+## What Was Built
+
+### Task 1: Profile hooks and profile edit UI
+- Created `usePublicProfile` hook for fetching public profile data and `useUpdateProfile` mutation hook
+- Created `ProfileSection` component with avatar upload (reuses existing /api/images endpoint), display name input (max 100 chars), bio textarea with character counter (max 500 chars), and save button
+- Added ProfileSection to settings page as first section (visible when authenticated)
+
+### Task 2: Public profile page and setup visibility toggle
+- Created public profile page at `/users/$userId` with avatar, display name (falls back to "User #id"), bio, and grid of public setups
+- Created `PublicSetupCard` component showing setup name and formatted creation date
+- Added isPublic toggle button with globe icon in setup detail action bar
+- Added "Public" badge to SetupCard in list view
+- Updated `useSetups` interfaces and `useUpdateSetup` mutation to support `isPublic` field
+
+### Task 3: Verification (auto-approved)
+- Build succeeds, lint passes
+
+## Commits
+
+| Task | Commit | Message |
+|------|--------|---------|
+| 1 | f120d17 | feat(18-05): add profile hooks and profile edit UI in settings |
+| 2 | a995668 | feat(18-05): add public profile page and setup visibility toggle |
+
+## Deviations from Plan
+
+### Auto-fixed Issues
+
+**1. [Rule 2 - Missing] Profile data loading strategy**
+- **Found during:** Task 1
+- **Issue:** Plan suggested reading profile from `auth?.user?.displayName` but /auth/me only returns `{ id }`, not profile fields
+- **Fix:** Used `usePublicProfile(userId)` to fetch profile data separately, with useEffect for form initialization
+- **Files modified:** src/client/components/ProfileSection.tsx
+
+## Known Stubs
+
+None -- all components are wired to real API endpoints.
+
+## Self-Check: PASSED