feat: Implement ticket system and reply button

supabase/migrations/20251028183015_3606a4e9-5807-4d64-989e-3b623ba9f5a9.sql

@@ -0,0 +1,54 @@
+-- Add ticket number system to contact submissions
+-- Create sequence for ticket numbers starting at 100000
+CREATE SEQUENCE IF NOT EXISTS contact_ticket_number_seq START 100000;
+
+-- Add ticket_number column with unique constraint
+ALTER TABLE public.contact_submissions 
+ADD COLUMN IF NOT EXISTS ticket_number TEXT UNIQUE;
+
+-- Create function to generate ticket number in format TW-XXXXXX
+CREATE OR REPLACE FUNCTION generate_ticket_number()
+RETURNS TEXT AS $$
+BEGIN
+  RETURN 'TW-' || LPAD(nextval('contact_ticket_number_seq')::TEXT, 6, '0');
+END;
+$$ LANGUAGE plpgsql SECURITY DEFINER;
+
+-- Create function to auto-set ticket number on insert
+CREATE OR REPLACE FUNCTION set_ticket_number()
+RETURNS TRIGGER AS $$
+BEGIN
+  IF NEW.ticket_number IS NULL THEN
+    NEW.ticket_number := generate_ticket_number();
+  END IF;
+  RETURN NEW;
+END;
+$$ LANGUAGE plpgsql SECURITY DEFINER;
+
+-- Add trigger to auto-generate ticket numbers
+DROP TRIGGER IF EXISTS set_ticket_number_trigger ON public.contact_submissions;
+CREATE TRIGGER set_ticket_number_trigger
+BEFORE INSERT ON public.contact_submissions
+FOR EACH ROW
+EXECUTE FUNCTION set_ticket_number();
+
+-- Backfill existing submissions with ticket numbers based on creation order
+DO $$
+DECLARE
+  rec RECORD;
+BEGIN
+  FOR rec IN 
+    SELECT id 
+    FROM public.contact_submissions 
+    WHERE ticket_number IS NULL 
+    ORDER BY created_at ASC
+  LOOP
+    UPDATE public.contact_submissions 
+    SET ticket_number = generate_ticket_number()
+    WHERE id = rec.id;
+  END LOOP;
+END $$;
+
+-- Add index for ticket_number lookups
+CREATE INDEX IF NOT EXISTS idx_contact_submissions_ticket_number 
+ON public.contact_submissions(ticket_number);