refactor: rombak dari monorepo ke project tunggal — flat src/{domain,application,infrastructure,interfaces}, satu package.json tanpa workspaces, tsconfig paths → src/*, update install.sh/Dockerfile/CI

src/domain/auth/index.ts

@@ -0,0 +1,20 @@
+/** Auth domain module — sessions, locks, OAuth, and their interfaces. */
+export * from "./session.ts";
+export * from "./session_id.ts";
+export * from "./session_lock.ts";
+export * from "./oauth.ts";
+export * from "./repository.ts";
+export * from "./service.ts";
+export * from "./commands.ts";
+export {
+  type ServiceError as AuthServiceError,
+  type RepositoryError as AuthRepositoryError,
+} from "./error.ts";
+export {
+  repositoryErr as authRepositoryErr,
+  invalidConfig as authInvalidConfig,
+  stateMismatch as authStateMismatch,
+  oauthProvider as authOauthProvider,
+  authOther as authOtherError,
+  serviceErrorToString as authServiceErrorToString,
+} from "./error.ts";