fix: hide exact quota values from account response (#16)

Closes #1

- hide exact quota values from GET /api/account
- keep only the approximate quota bucket in the public account payload
- add a regression test for the public account response contract
- document that completed tasks should end with a PR

Co-authored-by: sirily <sirily@git.shararam.party>
Reviewed-on: #16

packages/db/src/account-store.ts

@@ -22,7 +22,6 @@ export interface UserAccountOverview {
       id: string;
       code: string;
       displayName: string;
-      monthlyRequestLimit: number;
       monthlyPriceUsd: number;
       billingCurrency: string;
       isActive: boolean;
@@ -30,8 +29,6 @@ export interface UserAccountOverview {
   } | null;
   quota: {
     approximateBucket: QuotaBucket;
-    usedSuccessfulRequests: number;
-    monthlyRequestLimit: number;
   } | null;
 }
 
@@ -95,7 +92,6 @@ export function createPrismaAccountStore(database: PrismaClient = defaultPrisma)
                 id: subscription.plan.id,
                 code: subscription.plan.code,
                 displayName: subscription.plan.displayName,
-                monthlyRequestLimit: subscription.plan.monthlyRequestLimit,
                 monthlyPriceUsd: decimalToNumber(subscription.plan.monthlyPriceUsd),
                 billingCurrency: subscription.plan.billingCurrency,
                 isActive: subscription.plan.isActive,
@@ -140,7 +136,5 @@ async function buildQuotaSnapshot(
       used: usedSuccessfulRequests,
       limit: input.monthlyRequestLimit,
     }),
-    usedSuccessfulRequests,
-    monthlyRequestLimit: input.monthlyRequestLimit,
   };
 }