feat(costs): add billing, quota, and budget control plane

server/src/services/approvals.ts

@@ -4,6 +4,7 @@ import { approvalComments, approvals } from "@paperclipai/db";
 import { notFound, unprocessable } from "../errors.js";
 import { redactCurrentUserText } from "../log-redaction.js";
 import { agentService } from "./agents.js";
+import { budgetService } from "./budgets.js";
 import { notifyHireApproved } from "./hire-hook.js";
 
 function redactApprovalComment<T extends { body: string }>(comment: T): T {
@@ -15,6 +16,7 @@ function redactApprovalComment<T extends { body: string }>(comment: T): T {
 
 export function approvalService(db: Db) {
   const agentsSvc = agentService(db);
+  const budgets = budgetService(db);
   const canResolveStatuses = new Set(["pending", "revision_requested"]);
   const resolvableStatuses = Array.from(canResolveStatuses);
   type ApprovalRecord = typeof approvals.$inferSelect;
@@ -137,6 +139,20 @@ export function approvalService(db: Db) {
           hireApprovedAgentId = created?.id ?? null;
         }
         if (hireApprovedAgentId) {
+          const budgetMonthlyCents =
+            typeof payload.budgetMonthlyCents === "number" ? payload.budgetMonthlyCents : 0;
+          if (budgetMonthlyCents > 0) {
+            await budgets.upsertPolicy(
+              updated.companyId,
+              {
+                scopeType: "agent",
+                scopeId: hireApprovedAgentId,
+                amount: budgetMonthlyCents,
+                windowKind: "calendar_month_utc",
+              },
+              decidedByUserId,
+            );
+          }
           void notifyHireApproved(db, {
             companyId: updated.companyId,
             agentId: hireApprovedAgentId,