[abocha]

Add a local research protocol and dependency-free JSONL tools for investigating workflow friction. Inventories pin source hashes, compact navigation links to physical records, and evidence-sheet validation checks citation bounds, corpus totals and declared reading coverage. UTF-8 output supports redirected Windows sessions.

Raw logs, private packets and findings remain ignored. Research tooling and docs are excluded from plugin archives; shared skills and the plugin version are unchanged.

Validation obtained on this revision:

• Nine focused synthetic tests passed, including Unicode output, source identity, pagination, navigation and evidence checks.
• Reproduced the redirected Unicode failure before the fix and confirmed it passes afterward.
• Validated known bad totals/ranges against a private local packet without publishing its contents.
• Plugin build/archive validation passed; lab and private evidence excluded.
• PR diff whitespace and private-evidence/path screening passed.
• Hosted scripts-ci passed.

The new Python research tests were run locally; the existing hosted workflow does not invoke them.