docs(06-03): complete hasRrule server-side exposure plan

.planning/ROADMAP.md

@@ -237,7 +237,7 @@ Plans:
 
 - [x] 06-01-PLAN.md — TDD: duration-preserving end-tracking math (computeNewTimedEnd/computeNewAllDayEnd) in eventDateTime.ts (D-04)
 - [x] 06-02-PLAN.md — TDD: RRULE UNTIL/COUNT serialization + Zod acceptance + FREQ-persistence regression (vevent/outboxWorker/events route) (D-06/D-07)
-- [ ] 06-03-PLAN.md — TDD: hasRrule on CalendarOccurrence + bounded-expansion lock (expand.ts) (D-06/D-08)
+- [x] 06-03-PLAN.md — TDD: hasRrule on CalendarOccurrence + bounded-expansion lock (expand.ts) (D-06/D-08)
 - [ ] 06-04-PLAN.md — Spinner/pulse: global @keyframes pulse + remove redundant spin redefinition (D-13)
 - [ ] 06-05-PLAN.md — Auth gating slice: SessionExpiredError + AuthSplash + global QueryCache/MutationCache error handler; client.ts type mirrors (D-10/D-11, + D-06/D-08 type carriers)
 
@@ -260,7 +260,7 @@ Note: Phase 4 depends only on Phase 1 and can begin as soon as Phase 1 is comple
 | 3. Event Write-Back + PWA Install | 12/12 | Complete    | 2026-06-07 |
 | 4. Shared Lists + Live Sync | 6/6 | Complete   | 2026-06-09 |
 | 5. Web Push Notifications | 8/8 | Complete   | 2026-06-10 |
-| 6. UX Polish | 2/6 | In Progress|  |
+| 6. UX Polish | 3/6 | In Progress|  |
 
 ## Backlog
 
@@ -268,7 +268,7 @@ Note: Phase 4 depends only on Phase 1 and can begin as soon as Phase 1 is comple
 
 **Goal:** [Captured for future planning] Abstract the calendar backend behind a provider interface so Fastmail/CalDAV is one implementation among potentially many. Shipping with a single provider is fine, but the broker, sync, and event-expansion layers should be structured so additional providers (e.g. other CalDAV hosts, Google Calendar, generic ICS feeds) can be added without rework. Captures the "provider" seam as an explicit architectural concern.
 **Requirements:** TBD
-**Plans:** 2/6 plans executed
+**Plans:** 3/6 plans executed
 
 Plans: