pgpass support

[ric-v]

This pull request introduces several improvements and fixes across the codebase, with a focus on enhancing authentication fallback using .pgpass, updating test and build workflows, and improving code consistency and maintainability. The most significant changes are grouped below:

Authentication and Connection Handling:

• Fixed Saving connection fails when using .pgpass (empty password) even though test connection succeeds #60
• Enhanced the getConnectionWithPassword function to fall back to .pgpass for password retrieval if the password is not found in secure storage, improving user experience for connections configured outside the extension. [1] [2] [3]
• Updated all usages of getConnectionWithPassword to pass the specific database name, ensuring correct password resolution and database targeting in commands such as backup, restore, psql tool, and database tree operations. [1] [2] [3] [4] [5] [6]

Testing and Build Workflow Updates:

• Upgraded GitHub Actions workflow steps to use the latest versions of actions/upload-artifact and actions/download-artifact, switched from docker-compose to docker compose, and added installation of the PostgreSQL client for integration tests. [1] [2] [3] [4]
• Updated package.json test scripts for better compatibility with ESM and improved coverage reporting, and added a proxy file for test runner resolution of ConnectionManager. [1] [2]

VS Code Tasks and UI Consistency:

• Added an esbuild task to .vscode/tasks.json and clarified task groupings for easier project builds in VS Code. [1] [2]
• Removed an unnecessary property from the AI task selector for better QuickPickItem compatibility.

Code Quality and Consistency:

• Standardized string quoting and improved error and logging messages throughout ConnectionManager.ts for consistency and maintainability. [1] [2] [3] [4] [5] [6]

These changes collectively improve authentication robustness, developer experience, and code maintainability.