fix(schema-drift): 補齊 prompts.py + Claude API schema enum 同步 (ADR-090)

問題: fe77e6d 擴充了 models/ai.py enum 至 8 值，但兩個地方未同步：
  1. core/prompts.py L77: 缺 INVESTIGATE、OBSERVE
  2. core/prompts.py L176 (NEMOTRON_SYSTEM_PROMPT): 缺 APPLY_HPA、INVESTIGATE、OBSERVE
  3. openclaw.py L564 (_call_claude tools schema): 舊 4 值 enum 約束

影響: LLM 不知道可以輸出 INVESTIGATE/OBSERVE，只能選舊 4 值

修復: 三處統一對齊 8 個 suggested_action 值
  RESTART_DEPLOYMENT|DELETE_POD|SCALE_DEPLOYMENT|APPLY_HPA|TUNE_RESOURCES|INVESTIGATE|OBSERVE|NO_ACTION

Closes: ADR-090 Prompt-Model 三層同步鐵律

2026-04-17 ogt + Claude Sonnet 4.6

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/api/src/services/openclaw.py

@@ -561,7 +561,7 @@ class OpenClawService:
                             "properties": {
                                 "action_title": {"type": "string"},
                                 "description": {"type": "string"},
-                                "suggested_action": {"type": "string", "enum": ["RESTART_DEPLOYMENT", "DELETE_POD", "SCALE_DEPLOYMENT", "NO_ACTION"]},
+                                "suggested_action": {"type": "string", "enum": ["RESTART_DEPLOYMENT", "DELETE_POD", "SCALE_DEPLOYMENT", "APPLY_HPA", "TUNE_RESOURCES", "INVESTIGATE", "OBSERVE", "NO_ACTION"]},
                                 "kubectl_command": {"type": "string"},
                                 "target_resource": {"type": "string"},
                                 "namespace": {"type": "string"},