- Add IMH_EXTRACTION_CLEANUP_FAILED and IMH_EXTRACTION_RESIDUAL_ATTRIBUTES
diagnostic codes with severity warning and extraction-error category
- Check for residual data-imhotep-runtime-id attributes before extraction
(both fast-geometry and CDP paths), emit diagnostic if prior run leaked them
- Surface cleanup failures (attribute removal, CDP session detach) as
returned diagnostics instead of silent console.warn
- Wrap CDP sessionManager.detach() in try/catch to prevent finally-block
unhandled throws on closed/navigated pages
- Count injected vs cleaned runtime-id attributes; report mismatch as
IMH_EXTRACTION_CLEANUP_FAILED with metrics
- Move errors array declaration before try block in fast-geometry path
so finally can append cleanup diagnostics
John Dvorak
ce04b2b3de