Initial commit: Agentic OS troubleshooting platform

Self-hosted, Docker-based agentic troubleshooting platform: FastAPI backend +
LangGraph agent, Next.js UI, tiered LLM routing (local Ollama -> Gemini ->
DeepSeek -> OpenRouter), MCP server manager, encrypted device credentials,
RBAC, audit log, project-memory + Obsidian integrations, and editable
troubleshooting decision rules tuned for the GeneseasX vessel stack.

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/app/models/__init__.py

@@ -0,0 +1,17 @@
+"""SQLAlchemy ORM models for Agentic OS."""
+from app.models.audit import AuditLog
+from app.models.balance import BalanceSnapshot
+from app.models.inventory import Device, Vessel
+from app.models.task import ApprovalRequest, Task, TaskEvent
+from app.models.user import User
+
+__all__ = [
+    "User",
+    "Vessel",
+    "Device",
+    "Task",
+    "TaskEvent",
+    "ApprovalRequest",
+    "BalanceSnapshot",
+    "AuditLog",
+]