Merge remote-tracking branch 'origin/master' into worktree/web-multimodal-image-input

# Conflicts:
#	apps/cli/README.md
#	apps/cli/src/web.ts
#	apps/web/tests/smoke-fixture.e2e.ts
#	docs/architecture.i18n.yaml
#	docs/module-graph.md
#	examples/acp-agent/tests/snapshots/cordis-inspect-jsdoc/stdout.expected.jsonl
#	packages/client/connection/src/client/api.ts
#	packages/client/connection/src/client/fixture.ts
#	packages/client/runtime/README.md
#	packages/client/runtime/src/client/index.ts
#	packages/client/runtime/src/client/sessions/conversation.ts
#	packages/client/runtime/src/client/sessions/service.ts
#	packages/client/runtime/src/client/sessions/session.ts
#	packages/client/ui-conversation/src/client/apply.ts
#	packages/client/ui-conversation/src/client/contract/slots.ts
#	packages/client/ui-conversation/src/client/index.ts
#	packages/client/ui-conversation/src/client/service.ts
#	packages/client/ui-conversation/src/client/skeleton/ConversationRoot.tsx
#	packages/client/ui-conversation/src/client/skeleton/EmptyState.tsx
#	packages/client/ui-conversation/src/client/skeleton/InputBar.tsx
#	packages/client/ui-conversation/src/client/stores.ts
#	packages/client/ui-conversation/tests/apply-inject.spec.tsx
#	packages/client/ui-conversation/tests/service-orchestration.spec.ts
#	packages/client/ui-conversation/tests/skeleton-branches.spec.tsx
#	packages/client/ui-conversation/tests/skeleton.spec.tsx
#	packages/cordis/tool-cordis/src/api-catalog.ts
#	packages/host/apiproxy/package.json
#	packages/host/apiproxy/src/api-proxy.ts
#	packages/host/apiproxy/src/api/sessions.schema.ts
#	packages/host/runtime/package.json
#	packages/host/runtime/src/boot.ts
#	packages/host/runtime/tests/host-runtime.spec.ts
#	packages/host/runtime/tsconfig.json
#	packages/host/webserver/README.md
#	packages/host/webserver/src/index.ts
#	packages/host/webserver/tests/webserver.spec.ts
#	packages/llm/llm-pi-ai/tests/convert.spec.ts
#	packages/ui/acp/src/codec.ts
#	packages/ui/acp/tests/codec.spec.ts
#	pnpm-lock.yaml

packages/client/runtime/README.md

@@ -1,6 +1,16 @@
 # @deepseek-ai/dsh-client-runtime
 
-Client cordis boot + core services: SlotsService (Service wrapper over SlotCore + 'slots/changed' bridge), SessionsService (list store projection, scope tree, bindings, ancestry, and the latest successful host capability description), the Session object layer (exported as a type; instances are owned and handed out by SessionsService — the manager/paging internals stay package-internal, tests reach them via src), ClientLoader (`./loader` subpath, statically held by the shell). Contract: api-contracts v3 §4.
+Client cordis boot and React-free object services: SlotsService wraps SlotCore and supplies renderer data sources; SessionsService owns Session objects, list/scope/history state, the latest successful host capability description, and page-local Session Intent state; WorkspacesService depends on SessionsService and owns Workspace objects, list/actions, page-local Workspace Intent state, default-target derivation, and the cross-object New Session flow. The runtime fans the shared Host stream into both managers. Contract: api-contracts v3 §4.
+
+## Workspace and Session lists
+
+Workspace and Session lists have independent monotone `pending` → `ready` baseline phases and separate refresh activity/error state. Incremental frames arriving during a list request replay over its response. The first successful baseline establishes Host order; later refreshes update rows and membership without changing the relative order of identities already shown. Workspace recency is derived only after both baselines are ready and never changes Workspace list order.
+
+SlotsService gives the renderer separate bare observables for `useSessions` and `useWorkspaces`; web-react creates the hooks. Workspace business state does not enter `SessionListState` or an entry store.
+
+## Session creation failures
+
+`SessionsService.create` accepts an optional caller-preallocated SessionId. It throws `SessionCreateError` on failure: `requestedSessionId` remains available after transport uncertainty, while `publishedSessionId` is set when `workspace-attach-failed` proves the Host published a real Session before attachment failed. For the New Session flow, the frontend Session object owns its retained prompt and advances it through attachment and send; a partially published Session keeps the same object and prompt while it appears as Ungrouped.
 
 ## Session title projection