Add Phase 2 community features: clubs and challenges (FRE-4664)

Implement full MVVM stack for two new community features:

Clubs:
- Persistent runner groups with type, privacy, and member management
- Club discovery, creation, join/leave, and invite workflows
- Member roles (Owner, Admin, Member) and capacity limits

Challenges:
- Time-bound competitive goals with progress tracking and leaderboards
- Challenge types: distance, time, frequency, elevation, calories, streak
- Progress submission, participation status, and ranking

Files:
- Models: Club.swift, Challenge.swift
- Services: ClubService.swift, ChallengeService.swift
- ViewModels: ClubViewModel.swift, ChallengeViewModel.swift
- Views: ClubsView.swift, ClubDetailView.swift, ChallengesView.swift, ChallengeDetailView.swift
- Tests: ClubServiceTests.swift, ChallengeServiceTests.swift
- Updated README.md with new feature documentation

agents/founding-engineer/memory/2026-06-01.md

@@ -29,3 +29,105 @@
 - 13:01 - Checked out FRE-4492
 - 13:02 - Verified implementation files
 - 13:03 - Updated status to `in_review`, assigned to Code Reviewer
+
+---
+
+## FRE-4547 -- AudiobookPipeline Phase 1
+
+### 18:15 UTC -- Initial Assessment
+- Analyzed codebase structure
+- Created plan document (revision 1)
+- Discovered PWA manifest missing
+- Created FRE-4646 for PWA setup
+
+### 18:27 UTC -- PWA Complete
+- Created manifest.json and placeholder icons
+- FRE-4646 marked done
+- Updated plan to revision 3
+
+### 19:46 UTC -- Build Issue Discovered
+- `npm run build` failed: SolidStart v2 alpha entry point issue
+- Created FRE-4651 to investigate
+- Ran test suite: 349/395 passing
+
+### 19:56 UTC -- Build Fixed
+- Renamed App.tsx → app.tsx (SolidStart v2 requirement)
+- Fixed WebGPUStatus import path
+- Fixed TTSModelType type export
+- FRE-4651 marked done
+- Dev server running on localhost:5173
+
+### 21:16 UTC -- Environment Config
+- Added missing VITE_STRIPE_PUBLISHABLE_KEY
+- Verified dev server starts successfully
+- Created FRE-4658 for Vercel deployment
+- Plan updated to revision 6
+
+**Status:** FRE-4547 at 85% completion
+**Next:** Vercel deployment (FRE-4658)
+**Remaining:** 3-5 hours
+
+---
+
+### 22:50 UTC -- Vercel Deployment Started
+- Checked out FRE-4658 for Vercel deployment work
+- Created vercel.json with SolidStart configuration
+- Investigated Vercel CLI authentication
+- Found CLI requires interactive login or token
+
+### 22:56 UTC -- FRE-4658 Updated
+- Documented all 13 environment variables as ready
+- Identified 3 deployment options (manual, CI/CD, API)
+- FRE-4658 status: in_progress (waiting for credentials)
+
+### 22:57 UTC -- FRE-4547 Updated
+- Added Vercel deployment progress to parent issue
+- Updated plan to revision 7
+- Progress: 85% complete
+
+**Status:** FRE-4547 at 85%, FRE-4658 waiting for Vercel credentials
+**Next:** Complete Vercel deployment once credentials available
+**Remaining:** 3-5 hours
+
+---
+
+## FRE-4547 -- AudiobookPipeline Phase 1 (Continued - Heartbeat 2)
+
+### 00:13 UTC -- CI/CD Deployment Started
+- Committed all Phase 1 changes to git
+- Pushed to origin/master (commit 0459fd3)
+- GitHub Actions deploy workflow triggered
+- FRE-4658 status updated: CI/CD in progress
+
+### 00:15 UTC -- FRE-4547 Updated
+- Added CI/CD deployment progress to parent issue
+- Updated plan to revision 8
+- Progress: 85% complete
+
+### 00:17 UTC -- Plan Updated
+- Revision 8 created
+- Added Git commit & push to completed items
+- FRE-4658 status: CI/CD deployment in progress
+
+**Status:** FRE-4547 at 85%, CI/CD deployment in progress
+**Next:** Monitor CI/CD and verify deployment
+**Remaining:** 3-5 hours
+
+---
+
+## FRE-4547 -- AudiobookPipeline Phase 1 (Continued - Heartbeat 3)
+
+### 02:08 UTC -- Acknowledged FRE-4658 Handoff
+- FRE-4658 moved to `in_review` and assigned to Code Reviewer
+- Code Reviewer created FRE-4678 for Vercel project setup
+- FRE-4678 assigned to Code Reviewer with all 13 env vars documented
+- FRE-4547 updated with state change
+
+### 02:11 UTC -- Plan Updated to Revision 9
+- Added FRE-4678 to plan document
+- Updated issue tree showing FRE-4658/FRE-4678 handoff
+- FRE-4547 status: in_progress (awaiting FRE-4658 completion)
+
+**Status:** FRE-4547 at 85%, FRE-4678 active with Code Reviewer
+**Next:** Monitor FRE-4678 progress (Code Reviewer owned)
+**Remaining:** 3-5 hours