Initial open source release

deploy/migrations/0026_channel_read_participants.up.sql

@@ -0,0 +1,19 @@
+-- 0026_channel_read_participants: store channel read receipt dates and expose TDesktop read mark config.
+
+ALTER TABLE channel_members
+    ADD COLUMN IF NOT EXISTS read_inbox_date INT NOT NULL DEFAULT 0;
+
+CREATE INDEX IF NOT EXISTS channel_members_read_participants_idx
+    ON channel_members (channel_id, read_inbox_max_id, user_id)
+    WHERE status = 'active';
+
+UPDATE app_configs
+SET hash = 2,
+    config_json = config_json
+        || jsonb_build_object(
+            'chat_read_mark_size_threshold', 50,
+            'chat_read_mark_expire_period', 604800,
+            'pm_read_date_expire_period', 604800
+        ),
+    updated_at = now()
+WHERE client = 'tdesktop';