[k3mpaxl]

Three follow-ups to v0.6.0. Best reviewed commit by commit: the formatting commit is large but only moves and formats code.

Rows already on the board are recognised by their content (9286923)

An imported row used to be found again only through its activity, whose ID comes from the participants. When a newer mapping saw other entities in a row, importing the same export again added a second activity and evidence item.

• The browser's import index now names the rows it holds: a 64-bit key of each evidence note (web/src/rowKey.ts, the same function as row_key in app/ingest.py; both test suites check the same reference values).
• A known row adds no entity, activity or evidence; its entities on the board only get the IDs the newer mapping reads. The same row from a second export is one evidence item too. Older browsers send no keys and import as before.
• With that, CloudAppEvents links the OAuth app that acted (OAuthAppId) as a participant. EmailEvents object IDs stay unlinked on purpose (they would join an email address to a user entity).
• Trade-off: a row an agent imported first stays unconfirmed when the analyst imports the same file later (previously a second, confirmed copy appeared).

Weekly check against xdrinternals.com (4a5121d)

• scripts/build_column_relations.py --check lists added, removed and changed joins (also in the job summary) and exits 1 on any change.
• New workflow Relationship catalog (Mondays and on demand). A rebuild without changes touches no file.

Readability (ddb27f9, 6c227a4)

• App.tsx (1,632 lines) split by purpose without behaviour changes: Inspector.tsx, Dialogs.tsx, Panels.tsx, ui.tsx; App.tsx keeps state, shortcuts and layout (~750 lines).
• Prettier for TypeScript and Ruff for Python, both 140 columns; CI checks both (npm run format:check, ruff format --check; Ruff pinned with hashes in requirements-dev.lock). Not formatted: the compact style sheet, the generated joinColumns.ts, and index.html (its inline script is allowed by CSP hash).
• Lines over 160 characters: from about 1,170 to about 190 (long strings formatters do not break).
• .git-blame-ignore-revs lists the formatting commit (git config blame.ignoreRevsFile .git-blame-ignore-revs).

Release (86f8b4d)

Version 0.6.1 in the backend, frontend, publish script and README.

Tests

• Backend: 74 tests incl. row keys and a repeated import with a changed mapping.
• Frontend unit tests, format checks, build, performance budgets.
• Browser workflows: 30 passed, 1 skipped (README screenshots), incl. a repeated import of the same row.

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