feat: implement authentication routes with login, logout, and user info retrieval

feat: add S3 bucket versioning support and related XML response handling

refactor: rename temporary file paths from 'teleuploader' to 'filedrop' for consistency

fix: update Swagger documentation to reflect new API name and descriptions

test: add unit tests for authentication routes and utilities

test: implement end-to-end tests for S3 bucket configuration and versioning

chore: update environment variable defaults for new service name

.env.example

@@ -11,7 +11,7 @@ RATE_LIMIT_MAX_REQUESTS=30
 # TRUST_PROXY=true  # Uncomment when behind reverse proxy (Traefik, Nginx) for correct client IP detection
 
 # S3-compatible API credentials
-# S3_ACCESS_KEY=teleuploader-admin
+# S3_ACCESS_KEY=filedrop-admin
 # S3_SECRET_KEY=your-secret-key-here
 # S3_DEFAULT_REGION=us-east-1
 # S3_VHOST_DOMAINS=upload.asepharyana.my.id,upload.asepharyana.web.id
@@ -19,4 +19,11 @@ RATE_LIMIT_MAX_REQUESTS=30
 # Telegram-safe internal chunking for large stored files
 # TELEGRAM_CHUNK_SIZE_BYTES=20971520
 # COMPRESS_CHUNKED_UPLOADS=true
-# CHUNK_COMPRESSION_MIN_SIZE_BYTES=4096
+# CHUNK_COMPRESSION_MIN_SIZE_BYTES=4096
+
+# Web dashboard/API auth. If empty, dashboard remains public.
+ADMIN_API_TOKEN=
+
+# Optional session cookie settings
+# SESSION_COOKIE_NAME=tu_session
+# SESSION_COOKIE_MAX_AGE_SECONDS=86400