Merge remote-tracking branch 'origin/master' into worktree/web-session-model-selector

# Conflicts:
#	packages/client/connection/src/client/fixture.ts
#	packages/client/runtime/README.i18n.yaml
#	packages/client/runtime/tests/fake-api.ts
#	packages/client/runtime/tests/session.spec.ts
#	packages/client/ui-conversation/README.i18n.yaml
#	packages/client/ui-conversation/README.md
#	packages/client/ui-conversation/README.zh.md
#	packages/host/apiproxy/README.i18n.yaml

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

@@ -124,10 +124,17 @@ export const historyEntrySchema = z.object({
   view: toolEventViewSchema.optional(),
 }) satisfies z.ZodType<Wire<HistoryEntry>>
 
+/** One todo item of the tail page's session-level projection (the todo/write payload shape). */
+export const todoItemSchema = z.object({
+  content: z.string(),
+  status: z.union([z.literal('pending'), z.literal('in_progress'), z.literal('completed')]),
+})
+
 /** session.history response value. */
 export const sessionHistoryValueSchema = z.object({
   events: z.array(historyEntrySchema),
   hasMore: z.boolean(),
+  todos: z.array(todoItemSchema).optional(),
 }) satisfies z.ZodType<Wire<ResponseValue<'session.history'>>>
 
 /** session.models request payload. */