refactor(schema): 重构数据库模型和 schema，清理废弃表

docs/protocols/divination/divination-run-protocol.md

@@ -160,7 +160,9 @@ During run streaming, backend emits standard AG-UI lifecycle events and two divi
 ### 2) `TEXT_MESSAGE_END`
 
 - Standard final answer event.
-- Existing fields remain canonical: `sign_level`, `summary`, `conclusion`, `focus_points`, `advice`, `keywords`, `answer`.
+- Existing fields remain canonical: `sign_level`, `conclusion`, `focus_points`, `advice`, `keywords`, `answer`.
+- Language rule: `conclusion`, `focus_points`, `advice`, `keywords`, `answer` should follow user `ai_language` preference unless user explicitly requests otherwise.
+- Canonical six-yao terms remain Chinese in protocol text (for example: 世爻、应爻、动爻、静爻、六亲、六神、伏神、月建、日辰、月破、日冲、空亡、五行旺衰).
 
 Frontend should combine:
 
@@ -189,15 +191,11 @@ Frontend should combine:
       "agent_output": {
         "status": "success",
         "sign_level": "中上签",
-        "summary": "...",
         "conclusion": ["..."],
         "focus_points": ["..."],
         "advice": ["..."],
         "keywords": ["..."],
         "answer": "...",
-        "key_points": ["..."],
-        "result_type": "structured_payload",
-        "suggested_actions": ["..."],
         "divination_derived": {
           "binaryCode": "101001",
           "changedBinaryCode": "100001",