feat: billing period for subscriptions, costs in redundancy analysis

artifacts/api-server/src/index.ts

@@ -149,6 +149,20 @@ async function ensureVoterTokenColumn(): Promise<void> {
   }
 }
 
+async function ensureBillingPeriodColumn(): Promise<void> {
+  try {
+    const exists = await db.execute(
+      sql`SELECT EXISTS (SELECT FROM information_schema.columns WHERE table_name = 'tool_costs' AND column_name = 'billing_period')`,
+    );
+    const rows = exists.rows as [{ exists: boolean }];
+    if (rows[0]?.exists) return;
+    await db.execute(sql`ALTER TABLE "tool_costs" ADD COLUMN "billing_period" text`);
+    logger.info("billing_period column added to tool_costs");
+  } catch (err) {
+    logger.error({ err }, "Failed to add billing_period column");
+  }
+}
+
 async function ensureAdminTier(): Promise<void> {
   try {
     const result = await db
@@ -169,6 +183,7 @@ async function start(): Promise<void> {
   await ensureToolRelationsTable();
   await ensureToolCostsTable();
   await ensureVoterTokenColumn();
+  await ensureBillingPeriodColumn();
   await ensureUserColumns();
   await seedAdminUser();
   await ensureAdminTier();