Add DocFX multi-language snippet tabs with persisted language state; patch vulnerable glob

[Copilot]

Summary

Adds DocFX support for :::multilang title="..."::: to render language-specific snippet tabs from mirrored documentation trees, and persists selected language across page navigation via local storage. Also upgrades glob to a patched release to address the CLI command-injection advisory.

Added

• Source/preprocess-multilang.ts to resolve snippets/<kebab-title>.md per language root and rewrite directives into DocFX tab groups.
• Multi-language snippet authoring guidance in Source/docs/Documentation/code-snippets.md.

:::multilang title="Appending Events":::

Changed

• Source/package.json build pipelines now run preprocess:multilang before DocFX article/site build steps.
• Source/styles/docfx.js tab state now reads/writes selected tab IDs to localStorage (docfx-selected-tabs) while preserving query-string tab behavior.

Fixed

• Multilang preprocessing now skips directives inside inline/code-fenced markdown.
• Missing language snippets no longer delete directives; unresolved directives are preserved.

Removed

• No removals.

Security

• Upgraded npm dependency glob from 11.0.0 to 11.1.0 to consume the patched CLI behavior for -c/--cmd.

Deprecated

• No deprecations.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• storybook.js.org
  • Triggering command: /opt/hostedtoolcache/node/24.14.1/x64/bin/node /opt/hostedtoolcache/node/24.14.1/x64/bin/node /home/REDACTED/work/Documentation/Documentation/Source/docs/Documentation/test-storybook/node_modules/.bin/storybook build (dns block)
  • Triggering command: /opt/hostedtoolcache/node/24.14.1/x64/bin/node /opt/hostedtoolcache/node/24.14.1/x64/bin/node /home/REDACTED/work/Documentation/Documentation/Source/docs/Documentation/test-storybook/node_modules/.bin/storybook build ntation/test-storybook/node_modules/@esbuild/linux-x64/bin/esbuild rybook/node_modules/.bin/storybook (dns block)
  • Triggering command: /opt/hostedtoolcache/node/24.14.1/x64/bin/node /opt/hostedtoolcache/node/24.14.1/x64/bin/node /home/REDACTED/work/Documentation/Documentation/Source/docs/Documentation/test-storybook/node_modules/.bin/storybook build k/Documentation/Documentation rybook/node_modules/.bin/storybook (dns block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)