Initial commit: Complete NodeJS-native setup

- Migrated from Python pre-commit to NodeJS-native solution
- Reorganized documentation structure
- Set up Husky + lint-staged for efficient pre-commit hooks
- Fixed Dockerfile healthcheck issue
- Added comprehensive documentation index

services/auth/auth.constants.ts

@@ -0,0 +1,25 @@
+// Client-side auth constants for demo/development purposes
+// In production, these would be handled by a secure backend service
+
+export const JWT_EXPIRES_IN = '1h';
+export const REFRESH_TOKEN_EXPIRES_IN = '7d';
+export const EMAIL_VERIFICATION_EXPIRES_IN = '24h';
+
+// Mock secrets for frontend-only demo (NOT for production use)
+export const JWT_SECRET = 'demo_jwt_secret_for_frontend_only';
+export const REFRESH_TOKEN_SECRET = 'demo_refresh_secret_for_frontend_only';
+export const EMAIL_VERIFICATION_SECRET =
+  'demo_email_verification_secret_for_frontend_only';
+
+export enum AccountStatus {
+  PENDING = 'PENDING',
+  ACTIVE = 'ACTIVE',
+  SUSPENDED = 'SUSPENDED',
+}
+
+export interface AuthConfig {
+  jwtSecret: string;
+  jwtExpiresIn: string;
+  refreshTokenExpiresIn: string;
+  emailVerificationExpiresIn: string;
+}