feat: add all application source code

- apps/api: FastAPI backend with Dockerfile
- apps/web: Next.js frontend with Dockerfile
- apps/sensor: Signal collection agent
- packages: shared packages

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

apps/api/src/models/__init__.py

@@ -0,0 +1,68 @@
+"""
+AWOOOI Models Package
+=====================
+
+核心資料模型匯出:
+- Approval: 簽核相關模型 (Phase 2 HITL)
+- Incident: 事件相關模型 (Phase 6 認知覺醒)
+- AI: AI 相關模型
+"""
+
+# Approval Models (Phase 2)
+from src.models.approval import (
+    ApprovalRequest,
+    ApprovalRequestCreate,
+    ApprovalRequestResponse,
+    ApprovalStatus,
+    BlastRadius,
+    DataImpact,
+    DryRunCheck,
+    PendingApprovalsResponse,
+    RejectRequest,
+    RiskLevel,
+    SignRequest,
+    SignResponse,
+    Signature,
+    SignatureSource,
+)
+
+# Incident Models (Phase 6 - 認知覺醒)
+from src.models.incident import (
+    AIDecisionChain,
+    Incident,
+    IncidentCreate,
+    IncidentOutcome,
+    IncidentResponse,
+    IncidentStatus,
+    IncidentUpdate,
+    Severity,
+    Signal,
+)
+
+__all__ = [
+    # Approval
+    "ApprovalRequest",
+    "ApprovalRequestCreate",
+    "ApprovalRequestResponse",
+    "ApprovalStatus",
+    "BlastRadius",
+    "DataImpact",
+    "DryRunCheck",
+    "PendingApprovalsResponse",
+    "RejectRequest",
+    "RiskLevel",
+    "SignRequest",
+    "SignResponse",
+    "Signature",
+    "SignatureSource",
+    # Incident
+    "AIDecisionChain",
+    "Incident",
+    "IncidentCreate",
+    "IncidentOutcome",
+    "IncidentResponse",
+    "IncidentStatus",
+    "IncidentUpdate",
+    "Severity",
+    "Signal",
+]