feat: make mode creation preview-only and cache-safe

tests/integration/test_scene_peripheral_mode_flow.py

@@ -15,7 +15,13 @@ from cognitive_agent.application.codex_assistant import (
     _catalog_exact_scene_template_plan,
 )
 from cognitive_agent.application.mode_profile import ModeProfileRegistry
-from cognitive_agent.application.scene_composer import normalize_scene_output
+from cognitive_agent.application.scene_composer import (
+    normalize_scene_output,
+    scene_context_for_mode_creation,
+    scene_required_native_fallbacks,
+    scene_required_peripheral_refs,
+    scene_semantic_guidance,
+)
 from cognitive_agent.application.seat_service import REPOSITORY_ROOT, SeatDemoService
 from cognitive_agent.application.self_extension import (
     ExtensionIntegrationError,
@@ -212,6 +218,33 @@ def test_scene_composer_mixed_can_ir_preview_save_and_revalidate(
             *template_external["requests"],
         ],
     }
+    template_context = scene_context_for_mode_creation(
+        context,
+        "创建一个浪漫模式",
+    )
+    template_semantics = scene_semantic_guidance("浪漫模式")
+    template_native_fallbacks = scene_required_native_fallbacks(
+        "浪漫模式",
+        template_context,
+        include_default_bundle=True,
+    )
+    template_semantics["required_native_domains"] = [
+        str(item["domain"])
+        for item in template_native_fallbacks
+    ]
+    template_semantics["native_fallback_requests"] = template_native_fallbacks
+    template_semantics["peripheral_policy"] = {
+        "required_refs": scene_required_peripheral_refs(
+            "浪漫模式",
+            template_context,
+            include_default_bundle=True,
+        ),
+    }
+    template_context["scene_semantics"] = template_semantics
+    augmented_template = CodexAssistantService._with_required_scene_peripherals(
+        augmented_template,
+        template_context,
+    )
     template_preview = handler._preview_mode_with_scene_peripherals(
         "/api/requests/preview",
         {
@@ -224,11 +257,30 @@ def test_scene_composer_mixed_can_ir_preview_save_and_revalidate(
         on_commands_validated=None,
     )
     assert template_preview["status"] == "succeeded"
-    assert template_preview["mode_profile_draft"]["source_template_id"] == "romantic"
-    assert template_preview["mode_profile_draft"]["operation_count"] == (
-        len(template_preview["intent_ir"]["spec"]["actions"])
+    assert template_preview["mode_profile_draft"]["generation_source"] == (
+        "codex_scene_composition"
     )
-    assert template_preview["mode_profile_draft"]["domains"][-1] == "self_extension"
+    template_actions = template_preview["intent_ir"]["spec"]["actions"]
+    assert template_preview["mode_profile_draft"]["operation_count"] == (
+        len(template_actions)
+    )
+    assert {
+        "climate",
+        "ambient_light",
+        "roof",
+        "self_extension",
+    }.issubset(template_preview["mode_profile_draft"]["domains"])
+    template_capabilities = {
+        action["capability"]
+        for action in template_actions
+    }
+    assert any(
+        capability.startswith("climate.")
+        for capability in template_capabilities
+    )
+    assert "ambient_light.set_power" in template_capabilities
+    assert "roof.set_shade_position" in template_capabilities
+    assert "infrared.emit" in template_capabilities
 
     explicit = handler._execute_request_with_peripherals(
         "/api/requests/preview",