feat: sase.tr v2 full application implementation

Complete rewrite of sase.tr VIN lookup platform with modern stack:

Backend (NestJS 10 + Drizzle ORM + PostgreSQL + Redis + BullMQ):
- 34 DB models (core + PL24 + EMEX schemas)
- Auth via Better Auth (email/password + social)
- Brands, Plans, Subscriptions, Payments (iyzico + EFT)
- VIN decode orchestration (Corgi + PL24 + EMEX + NHTSA)
- Interactive schema viewer backend (MinIO storage)
- EMEX scraping integration (Puppeteer + BullMQ workers)
- Translation module (EN→TR automotive dictionary)
- Admin dashboard API (stats, user mgmt, payment approval)
- Rate limiting, Helmet security, file upload validation

Frontend (Next.js 15 + Tailwind v4 + shadcn/ui + TanStack Query + Zustand):
- 20 routes: auth, dashboard, VIN search, schema viewer, admin
- Interactive schema viewer with zoom/pan/hotspot highlighting
- Subscription management with brand selector
- Payment flow (iyzico 3D Secure + EFT with receipt upload)
- i18n support (TR/EN)
- Error boundaries, loading skeletons, 404 page

Infrastructure:
- 85 tests (52 backend + 33 frontend, Vitest)
- CI/CD (GitHub Actions: lint, typecheck, test, build, deploy)
- Zero-downtime deploy script (PM2)
- Env validation script

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

packages/shared/src/index.ts

@@ -0,0 +1,43 @@
+// Types
+export type { User, UserProfile, UserSubscriptionSummary } from "./types/user.js";
+export type { Vehicle, VinDecodeResult, CategoryNode, VehicleSource } from "./types/vehicle.js";
+export type { Brand } from "./types/brand.js";
+export type { Part, PartSearchResult, PartSource } from "./types/part.js";
+export type { Category, CategoryWithSchema, SchemaPic, Hotspot } from "./types/category.js";
+export type {
+  Plan,
+  Subscription,
+  UserBrand,
+  CreateSubscriptionInput,
+  SubscriptionStatus,
+} from "./types/subscription.js";
+export type {
+  Payment,
+  PaymentMethod,
+  PaymentStatus,
+  IyzicoInitializeInput,
+  EftPaymentInput,
+} from "./types/payment.js";
+export type { ApiResponse, ApiError, PaginationMeta } from "./types/api-response.js";
+export type { PaginationInput, PaginatedResult } from "./types/pagination.js";
+
+// Schemas
+export { vinSchema } from "./schemas/vin.js";
+export { loginSchema, registerSchema, forgotPasswordSchema, resetPasswordSchema } from "./schemas/auth.js";
+export { paginationSchema } from "./schemas/pagination.js";
+
+// Constants
+export { VIN_REGEX, EMAIL_REGEX, OEM_CODE_REGEX } from "./constants/regex.js";
+export { PLANS, REFERRAL_REWARDS, CURRENCY } from "./constants/plans.js";
+export { ERROR_CODES } from "./constants/error-codes.js";
+export type { ErrorCode } from "./constants/error-codes.js";
+
+// Utils
+export {
+  isValidVin,
+  validateVinCheckDigit,
+  extractWmi,
+  extractModelYear,
+} from "./utils/vin-validator.js";
+export { formatTRY, kurusToLira, liraToKurus } from "./utils/currency.js";
+export { formatVin, formatDate, formatDateTime, slugify, generateReferralCode } from "./utils/formatters.js";