Paths

Scope: .ts files in /src

• prefer vscode-uri URIs over paths (file, memfs; cross-platform; FsService/workspace.fs accept URIs)
• Utils from vscode-uri instead of node:path:
  • Utils.joinPath(baseUri, 'a', 'b') — path.join
  • Utils.basename(uri), Utils.dirname(uri), Utils.extname(uri) — path.*
  • Utils.resolvePath(baseUri, 'rel') — path.resolve
• URI↔path via FsService: toUri(filePath) / uriToPath(uri) (Effect; extensions with salesforcedx-vscode-services)
• raw path→URI: URI.file(path), or toUri for memfs in web
• FsService setup: services-extension-consumption
• exit hatch: build scripts, esbuild configs, tests, desktop-only extension, host-FS-only tooling → node:path ok