feat: ✨ contact rethinked and user_contact created

migrations/20241215002127_user_contact.up.sql

@@ -0,0 +1,6 @@
+-- Add up migration script here
+CREATE TABLE IF NOT EXISTS "user_contact"(
+    user_id BIGSERIAL NOT NULL REFERENCES "user"(id),
+    contact_id BIGSERIAL NOT NULL REFERENCES "contact"(id),
+    PRIMARY KEY (user_id, contact_id)
+);