PR_26175_ALFA_047-theme-v2-svg-icon-registry

[ToolboxAid]

Summary

• Adds the authoritative Theme V2 standalone SVG icon pack under assets/theme-v2/svg/.
• Adds registry documentation and the Theme V2 icon style guide.
• Adds targeted Playwright validation for required filenames, forbidden names, XML parsing, shared attributes, static serving, and documentation policy.
• Adds APPLY evidence in docs_build/pr/APPLY_PR_26175_ALFA_047-theme-v2-svg-icon-registry.md.

Validation

• PASS: npx playwright test tests/playwright/tools/ThemeV2SvgIconRegistry.spec.mjs --workers=1
• PASS: rg -n <[s]tyle|[s]tyle= docs_build/design/theme-v2-icons/theme-v2-icon-style-guide.md tests/playwright/tools/ThemeV2SvgIconRegistry.spec.mjs returned no matches.
• PASS: git diff --cached --check before commit.
• PASS: ZIP manifest comparison for tmp/PR_26175_ALFA_047-theme-v2-svg-icon-registry_delta.zip.

Notes

• No runtime UI conversion, accordion conversion, CSS-only icon generation, JS-only icon registry, or SVG artwork regeneration is included.
• This PR was opened as a draft for owner review.