Implement E2EE and message content moderation

apps/supabase/migrations/20260102100001_add_public_key_to_profiles.sql

@@ -0,0 +1,12 @@
+-- Add E2EE public key to profiles table
+-- This migration adds a column to store user's RSA public key for E2EE
+
+-- RSA public key in JWK format (JSON Web Key)
+ALTER TABLE profiles ADD COLUMN IF NOT EXISTS public_key_jwk JSONB;
+
+-- Index for efficient lookups when encrypting for partner
+CREATE INDEX IF NOT EXISTS idx_profiles_couple_id_public_key ON profiles(couple_id) 
+  WHERE public_key_jwk IS NOT NULL;
+
+COMMENT ON COLUMN profiles.public_key_jwk IS 
+  'RSA-2048 public key in JWK format for E2EE. Private key stored on device only.';