Defer loading of Blob/Queue/Table server modules to reduce extension codeLoadingTime

[Copilot]

Extension activation reported a codeLoadingTime of ~10 seconds, since extension.ts statically imported VSCServerManagerBlob/Queue/Table, which transitively pull in the full Blob/Queue/Table server implementations (express, middleware, request handlers, etc.). VS Code requires the extension's main module synchronously before calling activate(), so this entire dependency graph was being loaded synchronously at module load time — exactly what codeLoadingTime measures.

Changes

• src/extension.ts: replaced static imports of VSCServerManagerBlob, VSCServerManagerQueue, and VSCServerManagerTable with dynamic import() calls made in parallel inside activate() (now async).

export async function activate(context: ExtensionContext) {
  const [
    { default: VSCServerManagerBlob },
    { default: VSCServerManagerQueue },
    { default: VSCServerManagerTable }
  ] = await Promise.all([
    import("./common/VSCServerManagerBlob"),
    import("./common/VSCServerManagerQueue"),
    import("./common/VSCServerManagerTable")
  ]);
  // ...rest of activation unchanged
}

This moves the cost of loading the heavy server modules from synchronous module load (blocking codeLoadingTime) to an async step during activation, without changing any command registration, status bar, or event listener wiring.

• Fixes Extension issue #548

[Copilot]

Copilot wasn't able to review any files in this pull request.

---

💡 Configure MCP servers for context-aware, tailored reviews. Learn more in the docs.

[Copilot]

🟡 Changes recommended

The user-visible extension performance improvement should be reflected in ChangeLog.md under “Upcoming Release” to align with the repo’s release-note practices.

Once you've addressed the issues Copilot identified, you can request another Copilot review.

Review details

• Files reviewed: 1/1 changed files
• Comments generated: 1
• Review effort level: Lite

[Akanksha Jain (jainakanksha-msft)]

Copilot what are the solutions of this problem with all the pros and cons.