Claude d2a2e9d037 Address review: clearer position code and docs ...

- position_source gets clear(); set_scalar() returns early for new values,
  switches on node_kind, and uses no local copies; the one position_source
  per materialize() call is documented
- no npos + 1 for containers without a position; a comment on why the end
  of a container is reported as its closing bracket
- less duplication under #if in materialize() and the builder
- diagnostic_positions sets npos explicitly
- docs: positions of basic_json values after changes, positions in images
  depend on how the document was parsed, when next is set, and the cost of
  positions while parsing

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01N5NasF5pZxP6g8W3fQfyyN

2026-10-27 21:12:42 +00:00

..

nlohmann

Address review: clearer position code and docs

2026-10-27 21:12:42 +00:00