chore: extend lib to provide configurable properties for VSCode

[himanshusinghs]

Proposed changes

VSCode exposes a few MCP properties as configurable properties through extension settings. This PR extends the lib with all the configurable properties that the MCP server can accept so that VSCode can filter out the irrelevant ones and provide only the relevant config.

Checklist

• I have signed the MongoDB CLA

[Copilot]

Pull Request Overview

This PR extends the library to expose configurable properties for VSCode integration by making the ALL_CONFIG_KEYS constant available as a public export.

• Exports ALL_CONFIG_KEYS as configurableProperties from the main library entry point
• Makes the ALL_CONFIG_KEYS constant exportable by adding the export keyword

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
src/lib.ts	Adds export of ALL_CONFIG_KEYS as configurableProperties to the public API
src/common/config.ts	Makes ALL_CONFIG_KEYS constant exportable by adding export modifier

---

_{Tip: Customize your code reviews with copilot-instructions.md. Create the file or learn how to get started.}

[coveralls]

Pull Request Test Coverage Report for Build 17765271882

Details

• 1 of 2 (50.0%) changed or added relevant lines in 2 files are covered.
• 8 unchanged lines in 1 file lost coverage.
• Overall coverage decreased (-0.09%) to 82.097%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/lib.ts	0	1	0.0%

Files with Coverage Reduction	New Missed Lines	%
src/tools/atlas/connect/connectCluster.ts	8	77.22%

Totals
Change from base Build 17764993826:	-0.09%
Covered Lines:	5022
Relevant Lines:	6006

---

💛 - Coveralls