chore: dedup dead code + compress utility

- Hapus src/shared/utils/retry.ts (0 imports, dead)
- Hapus src/shared/errors/index.ts (7 classes, 0 imports)
- Hapus drizzle type exports dari schema.ts (tidak dipake)
- Hapus src/config/index.ts, redirect 8 imports langsung ke env.ts
- Ekstrak maybeCompressChunk ke shared/utils/compress.ts
- Hapus duplikasi gzipSync di upload-file.ts + chunked-storage.ts
- Lint clean, build clean

src/interfaces/http/controllers/auth-controller.ts

@@ -4,7 +4,7 @@ import {
   createLogoutUseCase,
   createMeUseCase,
 } from '../../../application/use-cases/authenticate';
-import { config } from '../../../config/index';
+import { config } from '../../../env';
 import {
   checkBearerToken,
   clearSessionCookie,

src/interfaces/http/controllers/s3-controller.ts

@@ -1,8 +1,8 @@
 import { createReadStream } from 'node:fs';
 import { nanoid } from 'nanoid';
-import { config } from '../../../config/index';
 import type { File as FileEntity } from '../../../domain/entities/file';
 import type { ForwardResult } from '../../../domain/ports/telegram-service';
+import { config } from '../../../env';
 import {
   bucketRepository,
   chunkedStorage,

src/interfaces/http/controllers/upload-controller.ts

@@ -1,6 +1,6 @@
 import { createWriteStream } from 'node:fs';
 import { nanoid } from 'nanoid';
-import { config } from '../../../config/index';
+import { config } from '../../../env';
 import { chunkedStorage, fileRepository, uploadBatcher } from '../../../infrastructure/di';
 import type { PreparedUpload } from '../../../infrastructure/telegram/upload-batcher';
 import logger from '../../../shared/logger/index';

src/interfaces/http/controllers/web-api-controller.ts

@@ -1,6 +1,6 @@
 import { createReadStream } from 'node:fs';
 import { nanoid } from 'nanoid';
-import { config } from '../../../config/index';
+import { config } from '../../../env';
 import { bucketRepository, chunkedStorage, fileRepository } from '../../../infrastructure/di';
 import { db, files as fileSchema } from '../../../infrastructure/persistence/drizzle/index';
 import { botPool } from '../../../infrastructure/telegram/bot-pool';