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/mcp_helpers.py

@@ -0,0 +1,25 @@
+"""Shared helpers for interpreting MCP tool call results."""
+from __future__ import annotations
+
+
+def tool_result_ok(res: dict) -> bool:
+    """Return True when an MCP tool response indicates success."""
+    if res.get("isError"):
+        return False
+    text = (res.get("text") or "").strip()
+    if not text:
+        return True
+    lower = text.lower()
+    if "unknown tool:" in lower:
+        return False
+    if text.startswith("Error executing tool"):
+        return False
+    if '"status": "error"' in text or '"status":"error"' in text:
+        return False
+    if " api error " in lower and any(code in text for code in ("401", "403", "500")):
+        return False
+    if "authentication failed" in lower:
+        return False
+    if "permission denied" in lower:
+        return False
+    return True