The panel answered "who, when, what" poorly: the actual before → after diff
was hidden behind a click, the actor was a muted line, and a whole row went to
the route while duration and hash sat in a permanent right column. The data
already arrives with the page, so the panel now reads top-down in the order an
operator actually looks:
* who and when first, then the action and resource, then the diff spelled out
inline (long values collapse to their size so a pipeline config does not
render as two near-identical blobs), with route / method / status / duration
/ evidence hash moved into the expanded diagnostics line;
* the whole card is the expand toggle with a rotating chevron, which removes
the ambiguity of a small text link whose expanded state looked identical;
* records are bucketed into today / yesterday / dated groups so a long history
reads as a timeline;
* a "changes only" toggle (reusing the level filter) answers "who changed
something" in one click -- in the live log 489 of 499 rows are pure views,
so this is the difference between a haystack and the ten rows that matter.
Tracing fixes found while reading the live log:
* PUT /pipelines/<uuid>/extensions was classified as a plugin config change
because the generic ('/extensions') rule ran first; it now maps to a
pipeline-specific action;
* that handler recorded no diff at all, so "modified extension config" could
never say what changed. It now captures the previous bindings and reports the
before → after.
Cache: the integrity result is now keyed by (Workspace, listing filters) so
each view reuses its own verification, and a delete invalidates all views for
the Workspace. Fourteen tests cover the projection, the verifier, the cache
lifecycle and the failure modes.
The integrity scan selected whole rows, so a cold pass paged in the
changes/detail payloads and the client fingerprint for up to
MAX_INTEGRITY_SCAN_ROWS rows the verifier never reads. Project only the hash
columns, and add a lightweight verifier so the scan no longer builds a full
display dict per row.
Repair the read cache so it is a latency shield, not a correctness shortcut:
a result computed within INTEGRITY_CACHE_TTL_SECONDS is served from the
per-Workspace cache (opening, refreshing and paging all land inside that
window and pay nothing), while a cache miss re-verifies the whole window. An
incremental scan that skips previously verified ids can never see an edit to
an already-cached row -- exactly the tampering this feature exists to expose.
Verified against a live 414-row log: 50 content edits and 7 re-signed links
are all detected, including an edit to a row verified on a previous pass.
Also fix two correctness gaps and one maintenance bug:
- age-based prune deleted rows without invalidating the cached prefix;
- the boundary baseline is now read only when the history exceeds the scan
window, which a bounded scan makes the rare case;
- the operation-log retention block had drifted outside the per-binding loop
in the maintenance task, so only the last discovered Workspace was ever
pruned while the others grew unbounded.
Tests: scan projection, verifier parity, TTL cache reuse, cache-miss
re-verification, edit to an already-verified row, hash mismatch, chain break
and prune invalidation.
TyperBody