Changeset 0.23.2 (#155)

server/database/migrations/017_unread.sql

@@ -0,0 +1,10 @@
+-- ==========================================
+-- Chat Switchboard — 017 Unread Counts
+-- ==========================================
+-- Adds last_read_message_id to channel_participants for
+-- per-user unread count computation.
+-- ICD §3 (Channels & Conversations) — v0.23.2
+-- ==========================================
+
+ALTER TABLE channel_participants
+    ADD COLUMN IF NOT EXISTS last_read_message_id UUID;

server/database/migrations/sqlite/017_unread.sql

@@ -0,0 +1,3 @@
+-- Chat Switchboard — 017 Unread Counts (SQLite)
+
+ALTER TABLE channel_participants ADD COLUMN last_read_message_id TEXT;