bug: keep chat messages out of the notifications bell

hasura/migrations/default/1889000001600_drop_chat_notifications/down.sql

@@ -0,0 +1,4 @@
+-- The rows are gone for good: chat pushes straight from the conversation.
+CREATE INDEX IF NOT EXISTS notifications_message_id_idx
+    ON public.notifications ((data->>'messageId'))
+    WHERE data->>'messageId' IS NOT NULL;

hasura/migrations/default/1889000001600_drop_chat_notifications/up.sql

@@ -0,0 +1,8 @@
+DELETE FROM public.notifications
+ WHERE type IN ('ChatMessage', 'MatchChatMessage');
+
+DELETE FROM public.notification_preferences
+ WHERE channel = 'in_app'
+   AND key IN ('ChatMessage', 'MatchChatMessage');
+
+DROP INDEX IF EXISTS public.notifications_message_id_idx;

hasura/triggers/player_blocks.sql

@@ -126,29 +126,6 @@ BEGIN
      WHERE dc.room_id = LEAST(_a, _b)::text || ':' || GREATEST(_a, _b)::text
        AND dc.steam_id = _a;
 
-    -- Chat hides what the blocked player said from the blocker, so their bell
-    -- previews go the way NotificationsService.retractChatMessage takes them:
-    -- blanked as well, since a recipient can restore their own deleted rows,
-    -- and a push still waiting in its bundling window skips a deleted row.
-    -- A moderator still sees group rooms whole (ChatService.blockExemptRoles),
-    -- so only their DM rows go.
-    UPDATE public.notifications n
-       SET deleted_at = COALESCE(n.deleted_at, now()),
-           message = ''
-     WHERE n.steam_id = _a
-       AND n.type IN ('ChatMessage', 'MatchChatMessage')
-       AND n.data->>'senderSteamId' = _b::text
-       AND (n.deleted_at IS NULL OR n.message <> '')
-       AND (
-           n.entity_id LIKE 'direct:%'
-           OR NOT EXISTS (
-               SELECT 1
-                 FROM public.players p
-                WHERE p.steam_id = _a
-                  AND public.is_role_below('moderator', p.role::text)
-           )
-       );
-
     RETURN NULL;
 END;
 $$;