* 🔧 chore: Update configuration version to 1.3.4 in librechat.example.yaml and data-provider config.ts
- Bumped the configuration version in both librechat.example.yaml and data-provider/src/config.ts to 1.3.4.
- Added new options for creating prompts and agents in the interface section of the YAML configuration.
- Updated capabilities list in the endpoints section to include 'deferred_tools'.
* 🔧 chore: Bump version to 0.8.3-rc1 across multiple packages and update related configurations
- Updated version to 0.8.3-rc1 in bun.lock, package.json, and various package.json files for frontend, backend, and data provider.
- Adjusted Dockerfile and Dockerfile.multi to reflect the new version.
- Incremented version for @librechat/api from 1.7.22 to 1.7.23 and for @librechat/client from 0.4.51 to 0.4.52.
- Updated appVersion in helm Chart.yaml to 0.8.3-rc1.
- Enhanced test configuration to align with the new version.
* 🔧 chore: Update version to 0.8.300 across multiple packages
- Bumped version to 0.8.300 in bun.lock, package-lock.json, and package.json for the data provider.
- Ensured consistency in versioning across the frontend, backend, and data provider packages.
* 🔧 chore: Bump package versions in bun.lock
- Updated version for @librechat/api from 1.7.22 to 1.7.23.
- Incremented version for @librechat/client from 0.4.51 to 0.4.52.
- Bumped version for @librechat/data-schemas from 0.0.35 to 0.0.36.
* feat: Implement concurrent request handling in ResumableAgentController
- Introduced a new concurrency management system by adding `checkAndIncrementPendingRequest` and `decrementPendingRequest` functions to manage user request limits.
- Replaced the previous `concurrentLimiter` middleware with a more integrated approach directly within the `ResumableAgentController`.
- Enhanced violation logging and request denial for users exceeding their concurrent request limits.
- Removed the obsolete `concurrentLimiter` middleware file and updated related imports across the codebase.
* refactor: Simplify error handling in ResumableAgentController and enhance SSE error management
- Removed the `denyRequest` middleware and replaced it with a direct response for concurrent request violations in the ResumableAgentController.
- Improved error handling in the `useResumableSSE` hook to differentiate between network errors and other error types, ensuring more informative error responses are sent to the error handler.
* test: Enhance MCP server configuration tests with new mocks and improved logging
- Added mocks for MCP server registry and manager in `index.spec.js` to facilitate testing of server configurations.
- Updated debug logging in `initializeMCPs.spec.js` to simplify messages regarding server configurations, improving clarity in test outputs.
* refactor: Enhance concurrency management in request handling
- Updated `checkAndIncrementPendingRequest` and `decrementPendingRequest` functions to utilize Redis for atomic request counting, improving concurrency control.
- Added error handling for Redis operations to ensure requests can proceed even during Redis failures.
- Streamlined cache key generation for both Redis and in-memory fallback, enhancing clarity and performance in managing pending requests.
- Improved comments and documentation for better understanding of the concurrency logic and its implications.
* refactor: Improve atomicity in Redis operations for pending request management
- Updated `checkAndIncrementPendingRequest` to utilize Redis pipelines for atomic INCR and EXPIRE operations, enhancing concurrency control and preventing edge cases.
- Added error handling for pipeline execution failures to ensure robust request management.
- Improved comments for clarity on the concurrency logic and its implications.
