- Added sandbox archive upload and download proxy endpoints with signed URL verification.
- Introduced security helpers for generating and verifying signed URLs.
- Updated file-related API routes to include sandbox archive functionality.
- Refactored app asset storage methods to streamline download/upload URL generation.
- Renamed `build_skill_artifact_set` to `build_skill_bundle` for improved clarity in asset management.
- Updated references in `SkillManager` to reflect the new method name and ensure consistent handling of skill bundles.
- Added `AppAssetsAttrsInitializer` to `SandboxManager` to enhance asset initialization processes.
- Implemented output truncation in `SandboxBashTool` to manage long command outputs effectively.
- Added AttrMap and AttrKey classes for type-safe attribute storage.
- Implemented AppAssetsAttrs and SkillAttrs for managing application and skill attributes.
- Refactored Sandbox and initializers to utilize the new attribute management system, enhancing modularity and clarity in asset handling.
- Moved sandbox-related classes and functions into a dedicated module for better organization.
- Updated the sandbox initialization process to streamline asset management and environment setup.
- Removed deprecated constants and refactored related code to utilize new sandbox entities.
- Enhanced the workflow context to support sandbox integration, allowing for improved state management during execution.
- Adjusted various components to utilize the new sandbox structure, ensuring compatibility across the application.
