docs: 更新协议文档，删除废弃计划文档

- 更新 http-error-codes, user-points-chat-data-protocol
- 更新 divination-run-protocol, profile-protocol
- 删除废弃的后端和前端设计计划文档

backend/tests/unit/test_runtime_models_worker_output.py

@@ -3,7 +3,11 @@ from __future__ import annotations
 import pytest
 from pydantic import ValidationError
 
-from schemas.agent.runtime_models import WorkerAgentOutputLite
+from schemas.agent.runtime_models import (
+    FollowUpOutput,
+    WorkerAgentOutputLite,
+    resolve_worker_output_model,
+)
 
 
 def test_worker_output_lite_rejects_divination_derived_from_llm() -> None:
@@ -20,3 +24,29 @@ def test_worker_output_lite_rejects_divination_derived_from_llm() -> None:
 
     with pytest.raises(ValidationError):
         WorkerAgentOutputLite.model_validate(payload)
+
+
+def test_follow_up_output_accepts_minimal_schema() -> None:
+    payload = {
+        "status": "success",
+        "answer": "追问回答",
+    }
+
+    parsed = FollowUpOutput.model_validate(payload)
+    assert parsed.answer == "追问回答"
+
+
+def test_follow_up_output_rejects_chat_only_fields() -> None:
+    payload = {
+        "status": "success",
+        "answer": "追问回答",
+        "sign_level": "中上签",
+    }
+
+    with pytest.raises(ValidationError):
+        FollowUpOutput.model_validate(payload)
+
+
+def test_resolve_worker_output_model_uses_runtime_mode() -> None:
+    assert resolve_worker_output_model(runtime_mode="chat") is WorkerAgentOutputLite
+    assert resolve_worker_output_model(runtime_mode="follow_up") is FollowUpOutput