chore: move extension directory

extensions/vscode/.gitignore renamed

extensions/vscode/.npmrc renamed

extensions/vscode/.vscode-test.mjs renamed

extensions/vscode/.vscode/extensions.json renamed

extensions/vscode/.vscode/launch.json renamed

extensions/vscode/.vscode/settings.json renamed

extensions/vscode/.vscode/tasks.json renamed

extensions/vscode/.vscodeignore renamed

extensions/vscode/CHANGELOG.md renamed

extensions/vscode/README.md renamed

extensions/vscode/esbuild.js renamed

extensions/vscode/eslint.config.mjs renamed

extensions/vscode/package.json renamed

extensions/vscode/pnpm-lock.yaml renamed

extensions/vscode/src/extension.ts renamed

extensions/vscode/src/test/extension.test.ts renamed

extensions/vscode/tsconfig.json renamed

extensions/vscode/vsc-extension-quickstart.md renamed