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

# Conflicts:
#	.agents/notes/implemented/architecture/2026-07-05-reconstructable-requests.i18n.yaml
#	docs/config-catalog.md
#	docs/cordis-catalog/events.md
#	docs/cordis-catalog/services.md
#	docs/core-data-structures/core.md
#	docs/core-data-structures/core.zh.md
#	docs/core-data-structures/llm-streaming.i18n.yaml
#	docs/core-data-structures/llm-streaming.md
#	docs/core-data-structures/llm-streaming.zh.md
#	docs/event-producer-consumer.md
#	docs/module-graph.md
#	docs/subsystems/attachment.i18n.yaml
#	docs/subsystems/attachment.md
#	docs/subsystems/attachment.zh.md
#	docs/subsystems/core.i18n.yaml
#	examples/acp-agent/tests/snapshots/cordis-inspect-jsdoc/session.jsonl
#	packages/README.i18n.yaml
#	packages/README.md
#	packages/README.zh.md
#	packages/client/runtime/package.json
#	packages/client/ui-conversation/package.json
#	packages/client/ui-conversation/src/client/chat/AssistantMarkdown.tsx
#	packages/client/ui-conversation/src/client/chat/ChatView.tsx
#	packages/client/ui-conversation/src/client/chat/MessageItem.tsx
#	packages/client/ui-conversation/src/client/index.ts
#	packages/client/ui-conversation/tests/input-bar.spec.tsx
#	packages/compact/compact-basic/README.i18n.yaml
#	packages/compact/compact-basic/README.md
#	packages/compact/compact-basic/README.zh.md
#	packages/host/apiproxy/src/api-proxy.ts
#	packages/host/apiproxy/src/api/index.ts
#	packages/host/apiproxy/src/api/sessions.ts
#	packages/host/apiproxy/src/index.ts
#	packages/host/apiproxy/tests/api-proxy-models.spec.ts
#	packages/self-modification/tool-cordis/src/api-catalog.ts
#	pnpm-lock.yaml
#	scripts/type-equiv.manifest.json

packages/host/apiproxy/src/api/sessions.schema.ts

@@ -12,7 +12,7 @@ import type { RequestPayload, ResponseValue } from './rpc-map.ts'
 import type { Wire } from './rpc.schema.ts'
 import type {
   HistoryEntry, ModelCatalogFailure, ModelCatalogModel, ModelProviderGroup, ModelReasoning,
-  ModelReasoningEffort, ModelTarget, SessionProjectionsBlock, SessionSearchItem, SessionSummary,
+  ModelReasoningEffort, ModelSelection, SessionProjectionsBlock, SessionSearchItem, SessionSummary,
 } from './sessions.ts'
 import type { ToolEventView } from './events.ts'
 import type { AttachmentIdType, ImageAttachmentRef } from '@deepseek-ai/dsh-attachment'
@@ -141,12 +141,12 @@ export const sessionHistoryRequestSchema = z.object({
   maxMessages: z.number().int().positive().optional(),
 }) satisfies z.ZodType<Wire<RequestPayload<'session.history'>>>
 
-/** Complete provider/model target. */
-export const modelTargetSchema = z.object({
+/** Complete provider/model selection. */
+export const modelSelectionSchema = z.object({
   provider: z.string().min(1),
   model: z.string().min(1),
   reasoningEffort: z.string().min(1).optional(),
-}) satisfies z.ZodType<Wire<ModelTarget>>
+}) satisfies z.ZodType<Wire<ModelSelection>>
 
 /** One adapter-owned reasoning effort. */
 export const modelReasoningEffortSchema = z.object({
@@ -225,7 +225,7 @@ export const sessionModelsRequestSchema = z.object({
 
 /** session.models response value. */
 export const sessionModelsValueSchema = z.object({
-  current: modelTargetSchema,
+  current: modelSelectionSchema,
   routable: z.boolean(),
   groups: z.array(modelProviderGroupSchema),
   failures: z.array(modelCatalogFailureSchema),
@@ -241,7 +241,7 @@ export const sessionSelectModelRequestSchema = z.object({
 
 /** session.selectModel response value. */
 export const sessionSelectModelValueSchema = z.object({
-  selected: modelTargetSchema,
+  selected: modelSelectionSchema,
 }) satisfies z.ZodType<Wire<ResponseValue<'session.selectModel'>>>
 
 /** ContentBlock passthrough: core is merge-extensible — the type discriminant envelope is strict, the rest stays wide. */