feat(phase5): calendar channels - events, RSVPs, calendar view

GUILDED_ROADMAP.md

@@ -128,10 +128,17 @@
 
 ---
 
-## Phase 5 — Guilded Signature Features (3–4 weeks)
+## Phase 5 — Guilded Signature Features 🔄 IN PROGRESS
 
 > The features that set Guilded apart: calendar, docs, lists, scheduling.
 
+| # | Feature | Status |
+|---|---------|--------|
+| 5.1 | Calendar Channels | In progress |
+| 5.2 | Docs Channels | Pending |
+| 5.3 | Lists Channels | Pending |
+| 5.4 | Scheduling / Availability | Pending |
+
 ### 5.1 Calendar Channels
 - **Backend:** New `calendar` channel type. New `events` table (channel_id, creator_id, title, description, start_time, end_time, recurrence_rule, location, color). New `event_rsvps` table (event_id, user_id, status: going/maybe/no, responded_at).
 - **Route:** CRUD for events. `POST /events/{eventID}/rsvp` (RSVP). `GET /channels/{channelID}/events?from=...&to=...`.