chore: add missing feedback migration to match remote

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

supabase/migrations/20240218000001_create_feedback_table.sql

@@ -0,0 +1,24 @@
+-- Create feedback table
+CREATE TABLE IF NOT EXISTS feedback (
+  id TEXT NOT NULL PRIMARY KEY,
+  user_id TEXT,
+  message TEXT NOT NULL,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+-- Enable Row Level Security
+ALTER TABLE feedback ENABLE ROW LEVEL SECURITY;
+
+-- Allow anyone (authenticated or anonymous) to submit feedback
+CREATE POLICY "Anyone can insert feedback"
+  ON feedback
+  FOR INSERT
+  TO anon, authenticated
+  WITH CHECK (true);
+
+-- Allow service role full access (for admin review)
+CREATE POLICY "Service role full access"
+  ON feedback
+  TO service_role
+  USING (true)
+  WITH CHECK (true);