Add feature opt-ins, dashboard view, and tests

Introduce feature_interests schema + realtime publication and surface opt-in trends in the admin dashboard. Add Jest test infrastructure/coverage for the mobile app and update push-all to run mobile checks before pushing.

Co-authored-by: Claude Code <claude@anthropic.com>

apps/supabase/migrations/20260101180200_create_feature_interests_table.sql

@@ -0,0 +1,27 @@
+-- Track user opt-ins for upcoming/coming-soon features
+
+CREATE TABLE feature_interests (
+  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+  user_id UUID NOT NULL REFERENCES auth.users(id) ON DELETE CASCADE,
+  feature_name TEXT NOT NULL,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+  UNIQUE (user_id, feature_name)
+);
+
+CREATE INDEX idx_feature_interests_user_id ON feature_interests(user_id);
+CREATE INDEX idx_feature_interests_feature_name ON feature_interests(feature_name);
+
+ALTER TABLE feature_interests ENABLE ROW LEVEL SECURITY;
+
+CREATE POLICY "Users can view their own interests"
+  ON feature_interests FOR SELECT
+  USING (auth.uid() = user_id);
+
+CREATE POLICY "Users can express interest in features"
+  ON feature_interests FOR INSERT
+  WITH CHECK (auth.uid() = user_id);
+
+CREATE POLICY "Users can remove their interest"
+  ON feature_interests FOR DELETE
+  USING (auth.uid() = user_id);
+

apps/supabase/migrations/20260102000000_add_feature_interests_admin_rls.sql

@@ -0,0 +1,5 @@
+-- Allow admins to view all feature interest opt-ins
+
+CREATE POLICY "Admins with view_users permission can view all feature interests"
+  ON feature_interests FOR SELECT
+  USING (has_permission('view_users'));

apps/supabase/migrations/20260102000001_add_feature_interests_to_realtime.sql

@@ -0,0 +1,14 @@
+-- Enable realtime updates for feature interest opt-ins
+
+DO $$
+BEGIN
+  IF NOT EXISTS (
+    SELECT 1
+    FROM pg_publication_tables
+    WHERE pubname = 'supabase_realtime'
+      AND schemaname = 'public'
+      AND tablename = 'feature_interests'
+  ) THEN
+    ALTER PUBLICATION supabase_realtime ADD TABLE feature_interests;
+  END IF;
+END $$;