fix(db): add missing MS21 user auth fields migration (#666)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

apps/api/prisma/migrations/20260303000001_ms21_user_auth_fields/migration.sql

@@ -0,0 +1,13 @@
+-- MS21: Add admin, local auth, and invitation fields to users table
+-- These columns were added to schema.prisma but never captured in a migration.
+
+ALTER TABLE "users"
+  ADD COLUMN IF NOT EXISTS "deactivated_at" TIMESTAMPTZ,
+  ADD COLUMN IF NOT EXISTS "is_local_auth" BOOLEAN NOT NULL DEFAULT false,
+  ADD COLUMN IF NOT EXISTS "password_hash" TEXT,
+  ADD COLUMN IF NOT EXISTS "invited_by" UUID,
+  ADD COLUMN IF NOT EXISTS "invitation_token" TEXT,
+  ADD COLUMN IF NOT EXISTS "invited_at" TIMESTAMPTZ;
+
+-- CreateIndex
+CREATE UNIQUE INDEX IF NOT EXISTS "users_invitation_token_key" ON "users"("invitation_token");