Retain compound selector topology evidence

[chubes4]

Summary

• retain matched non-neutral stylesheet declarations as explicit visual-topology ownership
• preserve selector specificity, order, stylesheet path, and hash evidence
• support resting compound, descendant, child, class, ID, and attribute selectors
• keep dynamic pseudos, class mismatches, class-only, and color-only cases fail-closed

Closes #1016.

Taste & Travel evidence

• Product empty wrappers 14 -> 10
• Product structural RichText remains 0
• no Home/Product/Contact core/html increase
• Home and Contact remain within editability policy

Verification

• cd php-transformer && composer test
• 278 parity fixtures passed
• packaging proof passed
• hydrated 14-route artifact compilation passed canonical editability policy

AI assistance

OpenAI openai/gpt-5.6-sol via OpenCode general coding agents hydrated and attributed the exact residual wrappers, isolated the selector evidence boundary, implemented the bounded repair, and ran artifact-scale verification. Chris Huber remains responsible for every line.

[chubes4]

Updated with merge commit 14eba296623f825e05b5040a37d9af801ef41cee, integrating current trunk stylesheet composition, responsive variants, and full-width transparent-shell work while retaining compound selector topology evidence and per-payload provenance.

Verification:

• cd php-transformer && composer validate --strict && composer test passed, including 278 parity fixtures and package install proof.
• Focused empty visual topology, selector matcher, and shared-analysis-cache tests passed.
• composer test:wordpress-integration reported its explicit local skip because WP_TESTS_DIR is unavailable; CI provisions that runtime.

AI assistance: OpenAI openai/gpt-5.6-sol via OpenCode merged current trunk, resolved the two shared transformer conflicts, fixed the attributable payload-cache regression, and ran the listed validation. Chris Huber remains responsible for every line.