setup local dev env

backend/campaign-service/migrations/users/0001_init.sql

@@ -0,0 +1,15 @@
+CREATE TABLE IF NOT EXISTS users (
+  id UUID PRIMARY KEY,
+  email TEXT UNIQUE NOT NULL,
+  password_hash TEXT NOT NULL,
+  email_verified BOOLEAN NOT NULL DEFAULT FALSE,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE IF NOT EXISTS refresh_sessions (
+  id UUID PRIMARY KEY,
+  user_id UUID NOT NULL REFERENCES users(id),
+  token_hash TEXT NOT NULL,
+  expires_at TIMESTAMPTZ NOT NULL,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);