fix: add Incident/Playbook/HealLog to autoheal_models.py (was never committed)

ADR-013 AIOps classes Incident, Playbook, HealLog existed locally but were
missing from git. manager.py imports them → ImportError on every scheduler
restart. Also fixes transitive MetaData conflict with ai_models.py.

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

database/autoheal_models.py

@@ -15,13 +15,14 @@ class AgentContext(Base):
     session_id = Column(String(64), nullable=False, index=True)
     agent_name = Column(String(50), nullable=False, index=True)
     context_key = Column(String(100), nullable=False)
-    context_val = Column(Text)  # JSON 字串
+    context_val = Column(Text)  # JSON string
     created_at = Column(DateTime, default=datetime.now)
     ttl_minutes = Column(Integer, default=60)
 
     __table_args__ = (
         Index('idx_agent_context_session_key', 'session_id', 'agent_name', 'context_key'),
         Index('idx_agent_context_session_ttl', 'session_id', 'created_at'),
+        {'extend_existing': True},
     )
 
 
@@ -45,6 +46,7 @@ class ActionPlan(Base):
     __table_args__ = (
         Index('idx_action_plan_sku_status', 'sku', 'status'),
         Index('idx_action_plan_created', 'created_at'),
+        {'extend_existing': True},
     )
 
 
@@ -53,6 +55,7 @@ class ActionOutcome(Base):
     行動結果追蹤（閉環學習核心）。
     """
     __tablename__ = 'action_outcomes'
+    __table_args__ = {'extend_existing': True}
 
     id = Column(Integer, primary_key=True, autoincrement=True)
     plan_id = Column(Integer, ForeignKey('action_plans.id'), nullable=False)
@@ -68,8 +71,8 @@ class ActionOutcome(Base):
 
 class AgentStrategyWeights(Base):
     """
-    Agent 策略權重（OpenClaw 學習累積）。
-    索引：strategy_key 以便快速更新與查詢。
+    Agent strategy weights (OpenClaw learning accumulation).
+    Index: strategy_key for fast updates/query.
     """
     __tablename__ = 'agent_strategy_weights'
 
@@ -82,4 +85,111 @@ class AgentStrategyWeights(Base):
 
     __table_args__ = (
         Index('idx_strategy_key', 'strategy_key'),
+        {'extend_existing': True},
     )
+
+
+class Incident(Base):
+    """
+    Incident tracking for AIOps auto-healing.
+    """
+    __tablename__ = 'incidents'
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    task_name = Column(String(100), nullable=False)
+    error_type = Column(String(50), nullable=False)
+    error_message = Column(Text, nullable=False)
+    traceback_str = Column(Text)
+    severity = Column(String(20), default='medium')
+    status = Column(String(20), default='open')  # open/healing/closed/escalated
+    retry_count = Column(Integer, default=0)
+    matched_playbook_id = Column(Integer, ForeignKey('playbooks.id'), nullable=True)
+    created_at = Column(DateTime, default=datetime.now)
+    updated_at = Column(DateTime, default=datetime.now)
+
+    # Relationship
+    playbook = relationship("Playbook", backref="incidents")
+
+
+class Playbook(Base):
+    """
+    Playbook definitions for auto-healing actions.
+    """
+    __tablename__ = 'playbooks'
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    name = Column(String(100), nullable=False)
+    description = Column(Text)
+    error_type = Column(String(50), nullable=False)
+    match_pattern = Column(Text)  # JSON array of patterns
+    action_type = Column(String(50), nullable=False)  # DOCKER_RESTART/SSH_CMD/ALERT_ONLY/WAIT_RETRY
+    action_params = Column(Text)  # JSON params
+    max_retries = Column(Integer, default=3)
+    cooldown_min = Column(Integer, default=30)
+    is_active = Column(Boolean, default=True)
+    created_at = Column(DateTime, default=datetime.now)
+    updated_at = Column(DateTime, default=datetime.now)
+
+    def get_match_patterns(self):
+        """Parse match_pattern JSON to list"""
+        if self.match_pattern:
+            try:
+                import json
+                return json.loads(self.match_pattern)
+            except:
+                return []
+        return []
+
+    def get_action_params(self):
+        """Parse action_params JSON to dict"""
+        if self.action_params:
+            try:
+                import json
+                return json.loads(self.action_params)
+            except:
+                return {}
+        return {}
+
+
+class HealLog(Base):
+    """
+    Healing execution logs.
+    """
+    __tablename__ = 'heal_logs'
+
+    id = Column(Integer, primary_key=True, autoincrement=True)
+    incident_id = Column(Integer, ForeignKey('incidents.id'), nullable=False)
+    playbook_id = Column(Integer, ForeignKey('playbooks.id'), nullable=False)
+    action_type = Column(String(50), nullable=False)
+    action_detail = Column(Text)
+    result = Column(String(20), default='unknown')  # success/failed/skipped
+    result_output = Column(Text)
+    duration_ms = Column(Float)
+    created_at = Column(DateTime, default=datetime.now)
+
+    # Relationships
+    incident = relationship("Incident", backref="heal_logs")
+    playbook = relationship("Playbook", backref="heal_logs")
+
+
+# Seed playbooks for common issues
+SEED_PLAYBOOKS = [
+    {
+        'name': 'Database Connection Recovery',
+        'error_type': 'database',
+        'match_pattern': '["connection", "timeout", "unreachable"]',
+        'action_type': 'WAIT_RETRY',
+        'action_params': '{"wait_minutes": 5}',
+        'max_retries': 3,
+        'cooldown_min': 15
+    },
+    {
+        'name': 'Disk Space Alert',
+        'error_type': 'disk_space',
+        'match_pattern': '["disk", "space", "full", "no space"]',
+        'action_type': 'ALERT_ONLY',
+        'action_params': '{"message": "Disk space critical - manual intervention required"}',
+        'max_retries': 1,
+        'cooldown_min': 60
+    }
+]