Initial open source release

deploy/migrations/0029_channel_available_reactions.up.sql

@@ -0,0 +1,7 @@
+-- 0029_channel_available_reactions: persisted reaction policy for
+-- messages.setChatAvailableReactions and channels.getFullChannel.
+--
+-- Fresh databases already get this column from 0022.
+
+ALTER TABLE channels
+    ADD COLUMN IF NOT EXISTS available_reactions JSONB NOT NULL DEFAULT '{}'::jsonb;