…g, and implement schema/table/column fetching

- Added TypeScript as a development dependency in package.json.
- Created comprehensive documentation for DB2 plugin fixes, including API endpoints and testing instructions.
- Improved error handling and connection stability in the DB2 driver.
- Implemented multiple query approaches to address SQL syntax issues across different DB2 versions.
- Added test scripts for verifying API endpoint functionality and connection handling.

…nism

- Added getStructureFixed.js to provide an enhanced implementation of the getStructure method for the DB2 driver, including error handling and a fallback to a basic implementation.
- Updated sql.js to exclude system schemas from schema retrieval.
- Enhanced driver.js with improved column properties and schema handling configurations.
- Modified test-db2-driver.js to use environment variables for database connection details.
- Introduced test-network-debug.js for debugging network requests and testing API endpoints directly.

…t table counts

- Added a new module `fixSchemaListIssue.js` to address the hanging issue in the `/database-connections/schema-list` endpoint and to refresh table counts correctly.
- Enhanced the DB2 driver in `index.js` to apply the new fixes during initialization.
- Created `schemaHelper.js` for helper functions related to schema operations, including refreshing schema counts.
- Introduced `schemaRefresh.js` to provide an improved implementation for refreshing schema counts.
- Updated the frontend driver configuration to include a global timeout for operations.
- Developed comprehensive test scripts (`test-all-db2-fixes.js`, `test-schema-fixes.js`, `test-sql-endpoint-fix.js`) to validate the fixes and ensure proper functionality.
- Added a verification script (`verify-fixes.js`) to check for required files and run tests with a mock DB2 connection.

…d with column fetching

…ba1/dbgate into them-desgin-refactor

…onitoring for DB2 connections

- Added network diagnostics module to assess network reliability, including socket tests, ping tests, and traceroute.
- Developed server health monitor to track connection success/failure, calculate health scores, and provide connection recommendations.
- Created test connection script to validate connection retry logic and server health monitoring.
- Enhanced frontend connection configuration form with options for retry settings, diagnostics, and troubleshooting.
- Implemented tests for procedure and function name display fixes, ensuring correct mapping from DB2 catalog.

…ion_names_UI

Add DB2 plugin for DbGate with enhanced features