Replace the consumer-sized status-name array with private sparse storage and accept arbitrary integer status values. Add explicit range reservations with overlap diagnostics, reserve the library's 0-255 compatibility band, and harden pointer and string boundary handling.
Update regression coverage and document the required migration for custom status-code consumers.
These macros leave the ATTEMPT block with a C break, which only escapes the
innermost loop/switch. Nesting them in a loop inside an ATTEMPT lets the rest of
the block run with an error already pending. Document the correct patterns:
iterate with PASS / FAIL_*_RETURN (which return, not break), or move the loop
into a helper returning akerr_ErrorContext * and CATCH the single call. Also
note that merely extracting the loop into a function does not fix it if the
helper still wraps the loop in ATTEMPT.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
