Correct the pinned HAR schema's missing object types and duration constraints at the shared decoder boundary. Preserve optional omission and the -1 sentinel without repairing producer measurements, and identify the owned corrections in decoder provenance.
Keep unsupported or redacted response encodings unavailable to replay and state extraction. Empty-response classification now uses the same body owner, preserving known empty content separately from unavailable content. Regenerate contract examples from decoded fixture bytes and the shared view service.
Validation: focused decoder, replay/state, CLI and MCP regressions, including unselected malformed records and confirmed write responses. Contract examples reproduce through MCP. Authored capture controls do not establish real-browser producer coverage.
Fixes#6890Fixes#6889