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fix(tui,host): project the human transcript from append-origin events

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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`.
This commit is contained in:
Hypatia May
2026-07-29 16:13:36 +08:00
parent 59ecfac776
commit d9a11dc91e
33 changed files with 544 additions and 119 deletions
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docs/cordis-catalog/services.md
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@@ -2174,7 +2174,7 @@ The concrete provider retains pi-tui, focus, and terminal lifecycle state. Plugi
abstract openOverlay(request: TuiOverlayRequest): TuiOverlaySession
```
Source: [`packages/ui/tui/src/index.ts:247`](../../packages/ui/tui/src/index.ts)
Source: [`packages/ui/tui/src/index.ts:250`](../../packages/ui/tui/src/index.ts)
## `ctx.userInteraction` — `UserInteractionService`