[Feature Request] Explicit Connection Management Actions (Connect / Reconnect / Disconnect)

Feature Description

I’d like to request more explicit connection management actions in the vscode-pgsql extension for Visual Studio Code, including dedicated options for Connect, Reconnect (Invalidate), and Disconnect.

Proposed Capabilities

• Explicit Connect action to manually establish a database connection.
• Reconnect / Invalidate Connection option to:
  • Refresh stale or expired connections
  • Clear cached sessions or credentials
• Disconnect action to explicitly close an active connection.
• Clear visual indicators for connection state:
  • Connected
  • Disconnected
  • Stale / invalid
• Access to these actions from:
  • Connection context menu
  • Toolbar or Command Palette
• Optional keyboard shortcuts for faster workflows.

Problem & Motivation

Currently, connection state handling in vscode-pgsql can feel implicit or unclear. When credentials expire, VPNs change, or sessions become stale, there is no clear way to explicitly invalidate and reconnect a connection.

This can lead to:

• Confusing connection errors
• Queries failing due to stale sessions
• Recreating connections unnecessarily

Use Case

• Switching between local, staging, and production environments
• Working with VPNs or unstable networks
• Refreshing credentials or tokens
• Managing multiple active connections safely

Request

Please consider adding explicit Connect, Reconnect (Invalidate), and Disconnect actions to improve clarity, reliability, and overall user experience in vscode-pgsql.

No source files, tests, or entry points are identified in the issue. Start by locating the extension's existing connection-state handling and commands, then define how Connect, Reconnect/Invalidate, and Disconnect should behave across the connection menu and Command Palette. Done should include explicit actions and clear connected, disconnected, and stale states.