Only pull submodules on init once

[fbeutin-ledger]

No description provided.

[Copilot]

Pull request overview

This pull request refactors git submodule initialization to run once during extension activation and workspace updates, rather than as a dependency that executes before every build task. This improves efficiency by avoiding redundant submodule initialization on each build.

Changes:

• Removed dependsOn: this.appSubmodulesInitExec from "Build (incremental)" and "Build (full)" tasks
• Added initializeAppSubmodulesIfNeeded() function that intelligently checks if submodules need initialization
• Integrated submodule initialization into extension activation and workspace change events

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
src/taskProvider.ts	Removed submodule initialization dependency from build tasks
src/extension.ts	Added submodule initialization during activation and workspace folder changes
src/appSelector.ts	Implemented smart submodule initialization function with existence checks and replaced inline initialization in test dependency building

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