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/agent/device_connect.py

@@ -0,0 +1,29 @@
+"""Connect argument builders for layer MCP tools (device ctx + .env fallbacks)."""
+from __future__ import annotations
+
+import os
+
+
+def pfsense_connect_args(ctx: dict) -> dict:
+    port = ctx.get("port") or int(os.environ.get("DEVICE_PFSENSE_PORT", "40443") or 40443)
+    api_key = (
+        ctx.get("secret")
+        or os.environ.get("DEVICE_PFSENSE_API_KEY", "").strip()
+        or os.environ.get("DEVICE_API_KEY", "").strip()
+        or None
+    )
+    return {
+        "url": f"https://{ctx['address']}:{port}",
+        "api_key": api_key,
+        "name": ctx.get("catalog_key") or "pfsense",
+        "verify_ssl": False,
+    }
+
+
+def ssh_connect_args(ctx: dict, *, default_port: int = 22) -> dict:
+    return {
+        "host": ctx["address"],
+        "port": ctx.get("port") or default_port,
+        "username": ctx.get("username") or "root",
+        "password": ctx.get("secret"),
+    }