Make color-coded connections a default configuration

[Copilot]

This PR enables color-coded connections as the default configuration by changing the mssql.statusBar.enableConnectionColor setting from false to true in the extension's configuration.

Changes Made

Configuration Update:

• Modified package.json to set "default": true for the mssql.statusBar.enableConnectionColor setting
• This makes color-coded connections enabled by default for all users

Documentation Fix:

• Corrected README.md to use the proper configuration key name mssql.statusBar.enableConnectionColor instead of the incorrect mssql.enableConnectionColor
• This ensures documentation matches the actual implementation

Test Coverage:

• Added comprehensive test case to verify the new default behavior works correctly
• Test validates that connections are colorized by default when a connection store is available
• Ensures backward compatibility with existing functionality

Impact

Users will now see color-coded connections in the status bar automatically without needing to manually discover and enable this setting. This addresses the discoverability issue mentioned in the feature request while maintaining all existing functionality for users who may want to disable the feature.

The change is minimal and surgical, affecting only the default configuration value and related documentation, ensuring no breaking changes to existing workflows.

Fixes #19984.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• update.code.visualstudio.com
  • Triggering command: node ./out/test/unit/runTest.js (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)

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[Copilot]

@Benjin 👋 This repository doesn't have Copilot instructions. With Copilot instructions, I can understand the repository better, work faster and produce higher quality PRs.

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[Benjin]

@copilot there's no need to add a new test

[Copilot]

Removed the test as requested. The change is now limited to just the configuration default value and documentation fix. (commit: 6d34347)

[Copilot]

Just as a heads up, I was blocked by some firewall rules while working on your feedback. Expand below for details.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• update.code.visualstudio.com
  • Triggering command: node ./out/test/unit/runTest.js (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)