Merge remote-tracking branch 'origin/master' into xtr/react-loop-simplification

# Conflicts:
#	.agents/notes/implemented/feature/2026-07-06-sandbox.i18n.yaml
#	.agents/notes/implemented/feature/2026-07-06-sandbox.md
#	.agents/notes/implemented/feature/2026-07-06-sandbox.zh.md
#	packages/host/apiproxy/README.i18n.yaml

packages/host/apiproxy/tests/api-proxy-models.spec.ts

@@ -1,7 +1,8 @@
 /**
  * Web session model-directory and selection behavior: dynamic provider grouping,
- * provider-local catalog failures, logged-target restoration, advisory unlisted
- * models, and the prompt-assembly boundary for a running selection change.
+ * provider-local catalog failures, logged-target restoration without stale
+ * catalog injection, advisory pass-through models, and the prompt-assembly
+ * boundary for a running selection change.
  */
 
 import { describe, expect, it } from 'vitest'
@@ -118,7 +119,7 @@ function expectValue<T>(response: { result: { ok: true; value: T } | { ok: false
 }
 
 describe('Web session model selection', () => {
-  it('groups successful providers, isolates failures, and preserves an unlisted current model', async () => {
+  it('groups successful providers and leaves an unlisted current target out of the catalog', async () => {
     const { ctx, sessionId } = await harness({
       provider: 'deepseek-official',
       model: 'private-preview',
@@ -143,12 +144,6 @@ describe('Web session model selection', () => {
           description: 'Reasoning model',
           reasoning: REASONING,
         },
-        {
-          id: 'private-preview',
-          name: 'private-preview',
-          unlisted: true,
-          reasoning: REASONING,
-        },
       ],
     }])
     expect(catalog.failures).toEqual([

packages/host/apiproxy/tests/rpc-schemas.spec.ts

@@ -204,7 +204,6 @@ describe('sessions domain schemas', () => {
           id: 'deepseek-v4-flash',
           name: 'DeepSeek V4 Flash',
           description: 'fast',
-          unlisted: true,
           reasoning: {
             efforts: [
               { id: 'off', name: 'Off' },