**feat(retry): add configurable retry logic with cooldown support**
- Introduced `max-retry-interval` configuration for cooldown durations between retries.
- Added `SetRetryConfig` in `Manager` to handle retry attempts and cooldown intervals.
- Enhanced provider execution logic to include retry attempts, cooldown management, and dynamic wait periods.
- Updated API endpoints and YAML configuration to support `max-retry-interval`.
Enhance error management for file operations and clean up temporary files. Add `NormalizeCommentIndentation` function to ensure YAML comments maintain consistent formatting.
Introduce an endpoint for importing Vertex service account JSON keys and storing them as authentication records. Add handlers for managing WebSocket authentication configuration.
- Introduced `usage-statistics-enabled` configuration to control in-memory usage aggregation.
- Updated API to include handlers for managing `usage-statistics-enabled` and `logging-to-file` options.
- Enhanced `watcher` to log changes to both configurations dynamically.
- Updated documentation and examples to reflect new configuration options.
- Eliminated `allow-localhost-unauthenticated` configuration field and its usage.
- Removed associated management API handlers and middleware logic.
- Simplified authentication middleware by deprecating localhost-specific checks.
- Eliminated the deprecated `force-gpt-5-codex` configuration option from all configs, handlers, and documentation.
- Updated examples and README files to reflect the removal.
- Streamlined related code by dropping unused fields and logging.
- Introduced a new `ForceGPT5Codex` configuration option in settings.
- Added relevant API endpoints for managing `ForceGPT5Codex`.
- Enhanced Codex client to handle GPT-5 Codex-specific logic and mapping.
- Updated example configuration file to include the new option.
Add GPT-5 Codex model support and configuration options in documentation
- Added JSON annotations across all configuration structs in `config.go`.
- Introduced `/config` management API endpoint to fetch complete configuration.
- Updated management API documentation (`MANAGEMENT_API.md`, `MANAGEMENT_API_CN.md`) with `/config` usage.
- Implemented `GetConfig` handler in `config_basic.go`.
- Implemented CRUD operations for authentication files.
- Added endpoints for managing API keys, quotas, proxy settings, and other configurations.
- Enhanced management access with robust validation, remote access control, and persistence support.
- Updated README with new configuration details.
Fixed OpenAI Chat Completions for codex
