feat: sync message translation support

deploy/migrations/0083_peer_translation_settings.down.sql

@@ -0,0 +1 @@
+DROP TABLE IF EXISTS peer_translation_settings;

deploy/migrations/0083_peer_translation_settings.up.sql

@@ -0,0 +1,11 @@
+CREATE TABLE peer_translation_settings (
+    user_id bigint NOT NULL REFERENCES users(id) ON DELETE CASCADE,
+    peer_type text NOT NULL CHECK (peer_type IN ('user', 'channel')),
+    peer_id bigint NOT NULL CHECK (peer_id > 0),
+    disabled boolean NOT NULL DEFAULT true,
+    updated_at timestamptz NOT NULL DEFAULT now(),
+    PRIMARY KEY (user_id, peer_type, peer_id)
+);
+
+CREATE INDEX peer_translation_settings_peer_idx
+    ON peer_translation_settings (peer_type, peer_id, user_id);