fix: address ds-review-bot v7 findings on the merged image-input head

- gate model selection on steering-placement image carriers from enqueue
  until their steering/message event publishes; release the gate when an
  admission ends idle without publication (both behaviorally asserted)
- reject session.updateQueue edits carrying non-text blocks at the RPC
  boundary (queue edits cannot bypass image admission)
- extend the durable-directory walk past a first-created DSH_HOME to the
  deepest pre-existing ancestor
- strip Windows-style separators from attachment display names on POSIX
- verify attachment reads with a header-only probe (digest already proves
  the bytes decoded fully at admission); document the read path
- make SessionInputShell.addImages refusal observable and keep workspace
  transfers/composer intake from leaking refused drafts
- own ONE recursive image walk (dsh-llm contentHasImage) across apiproxy,
  pi-ai, compact-basic, and the DeepSeek text-only assertion
- drop the redundant canonical-base64 regex and the no-op role read
- move AttachmentId/AttachmentError out of types.ts (brand.ts/error.ts);
  document why AttachmentError does not extend HarnessError
- document the hard attachments inject in both consumer READMEs
This commit is contained in:
creatixchu
2026-07-30 14:34:08 +08:00
parent 97cf33b7e0
commit 0d1250f743
37 changed files with 335 additions and 140 deletions
@@ -12,7 +12,7 @@ Image prompt admission and `session.selectModel` each read session modality stat
Each live Web agent has one private promise chain shared by image-bearing prompt admission and model selection. A failed operation settles its caller normally and leaves the chain usable. Text-only prompts bypass the chain because they cannot change the modality constraint.
The pending-inbox mirror marks a prompt as claimed at dequeue and retains it until the matching `user/message` or `steering/message` event publishes. If admission ends without publishing, the next dequeue or the transition to idle retires the claimed entry; inbox discard retires the listed work, and session disposal retires every remaining entry. Model selection checks that mirror plus `Session.deriveMessages()`, which is the current model-visible history after compaction.
The pending-publication set records a queued occurrence at dequeue and a steering occurrence already at enqueue (steering items never enter the queued UI mirror), and retains each until its matching `user/message` or `steering/message` event publishes. If admission ends without publishing, the transition to idle retires the entries; inbox discard retires the listed work, and session disposal retires every remaining entry. Model selection checks that set, the queued UI mirror, and `Session.deriveMessages()`, which is the current model-visible history after compaction.
Provider adapters remain the final enforcement boundary. The host ordering only prevents its mutable route and pending image state from contradicting each other before request assembly.