The terminal and history pagination both treated the model-visible surface as
the human transcript. A landed compaction replacement therefore erased the
conversation it summarized — messages the reader had already seen — and a
model-only replacement copy consumed a page's `maxMessages` quota, which could
also split a compaction's provenance from the replacement citing it.
`dsh-session` now exports the marker split `isAppendSurfaceEvent` /
`isReplacementSurfaceEvent`. The terminal replays append-origin surface events,
keeps a shadowed step's tool cards paired through its append-origin assistant
message, and renders one dim marker where a compaction landed; the checkpoint is
recognized through the compaction seam's `isCompactCheckpointSource` contract,
not the shape of the replacement. `session.history` counts only append-origin
human messages. Everything model-facing keeps reading `session.surface`.
The origin/master merge introduced a required workspaceRoot on
ApiProxyDefaults and deleted the ui-conversation test hook.ts helper.
Add workspaceRoot to the new todo-projection api-proxy test and bind
the todo-panel spec's selector hook via bindSnapshotSelector directly,
matching the sibling specs.
Boots a test-only cordis.yml through the real Loader and asserts the route
service's behavior surface: exact/longest-prefix matching, tapIndex
transform order and unsubscription, traversal 403, non-GET 405, SPA-200
fallback, malformed-request 400 without process exit, duplicate-pattern
throw, dispose closing held connections with register/disposer symmetry,
and a listen-failure fail-loud case (EADDRINUSE -> FAILED fiber + late
rejection). Replaces the retired factory-era specs.
Hypatia May
_Kerman
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