Reject contradictory headers, overlapping virtual sections, DOS header reuse and image intervals outside the 64-bit address domain before metadata interpretation. Preserve empty and adjacent ranges, source section order, and raw padding semantics. Advance the metadata profile revision and retain provider snapshot refusal facts.
Validation: 37 parser checks and 35 selected provider checks passed; check:fast and build:cached passed. Six tiny authored-fixture summary/detail tasks returned byte-identical 791-token replies. No real-engine or Windows loader qualification.
Fixes#4763
Validate the consumed optional-header extent before interpreting mapping fields. Require complete header-backed read intervals and prevent failed header reads from falling through to section mappings. Advance NativeAOT profile interpretation identity to v4.
Refs #4750
morluto