Moved the extraction pipeline, formula analysis, selector resolution glue,
CDP extraction, canonical compilation, contract building, cardinality
evaluation, FOL diagnostic mapping, compatibility reporting, and all
module-level extraction state into a dedicated extraction.ts module.
public.ts reduced from 3568 to 1533 lines (-57%). The remaining file
contains only the imhotep() entry point, property-run internals, and
component/story/fixture entry points, plus re-exports for backward
compatibility.
John Dvorak