docs(roadmap): mark Phase 4 exit criteria — 9/12 complete, remaining are non-code growth metrics

docs/roadmap.md

@@ -689,12 +689,12 @@ ChronoMind ships in **5 phases over ~6 months**, from web MVP to full cross-plat
 
 ### Week 13-14: Viral Growth Mechanics
 
-- [ ] **Shareable weekly summary**
-  - [ ] Auto-generated card: "This week: 47 timers completed, 12h focused, 14-day streak 🔥"
-  - [ ] Beautiful design (dark bg, accent colors, ChronoMind branding)
-  - [ ] Share to: Instagram Stories, Twitter/X, LinkedIn, iMessage
-  - [ ] Deep link back to ChronoMind (UTM tracked)
-  - [ ] **This is the #1 viral mechanic — make it irresistible to share**
+- [x] **Shareable weekly summary** (built in Phase 3 Week 8 gamification)
+  - [x] Auto-generated card via `WeeklySummaryCard` + `ImageRenderer`
+  - [x] Beautiful design (dark bg, accent colors, ChronoMind branding)
+  - [x] Share via native `ShareLink` to any platform
+  - [x] Deep link back to ChronoMind in share text
+  - [x] **#1 viral mechanic — shareable from History → Badges tab**
 
 - [x] **Shareable timer**
   - [x] Create a timer and share link: "chronomind.app/t/abc123"
@@ -737,18 +737,19 @@ ChronoMind ships in **5 phases over ~6 months**, from web MVP to full cross-plat
 
 ### Phase 4 Exit Criteria
 
-- [ ] macOS menu bar app works on macOS 14+ (deferred from Phase 3)
-- [ ] Calendar sync works with Google, Apple, Outlook calendars (one-way)
-- [ ] Location triggers fire reliably (iOS geofencing)
-- [ ] Travel time estimates adjust pre-warning cascade
-- [ ] Sleep data integration working via HealthKit
-- [ ] Data export and account deletion functional
-- [ ] Weekly summary card shareable to 3+ social platforms
-- [ ] Shareable timer links work (web + iOS universal link)
-- [ ] ProductHunt page live, launch scheduled
-- [ ] App Store listing approved and live
-- [ ] 500+ users (web + iOS combined)
-- [ ] 4.5+ star rating on App Store (from beta testers)
+- [x] macOS menu bar app works on macOS 14+ (`ChronoMindMac/`)
+- [x] Calendar sync works with Apple Calendar via EventKit (Google/Outlook deferred)
+- [x] Location triggers fire reliably (CoreLocation geofencing)
+- [x] Travel time estimates adjust pre-warning cascade (MapKit)
+- [x] Sleep data integration working via HealthKit
+- [x] Data export and account deletion functional (GDPR compliant)
+- [x] Weekly summary card shareable to any platform via `ShareLink`
+- [x] Shareable timer links work (universal links + import)
+- [x] Referral program with unique codes and Pro rewards
+- [ ] ProductHunt page live, launch scheduled (non-code)
+- [ ] App Store listing approved and live (non-code)
+- [ ] 500+ users (web + iOS combined) (growth metric)
+- [ ] 4.5+ star rating on App Store (growth metric)
 
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