add well known plugin manifest and logo for mcp integration

.well-known/ai-plugin.json

@@ -0,0 +1,17 @@
+{
+  "schema_version": "v1",
+  "name_for_human": "MedCodeMCP",
+  "name_for_model": "MedCodeMCP",
+  "description_for_human": "Map natural-language symptom descriptions to ICD-10 codes with confidence scores and follow-up questions.",
+  "description_for_model": "Use MedCodeMCP to analyze patient symptom descriptions and return probable ICD-10 codes, confidence scores, and follow-up diagnostic questions if needed.",
+  "auth": {
+    "type": "none"
+  },
+  "api": {
+    "type": "gradio",
+    "url": "https://agents-mcp-hackathon-medcode-mcp.hf.space"
+  },
+  "logo_url": "https://agents-mcp-hackathon-medcode-mcp.hf.space/file=logo.png",
+  "contact_email": "grahampaasch@gmail.com",
+  "legal_info_url": "https://huggingface.co/spaces/agents-mcp-hackathon/medcode-mcp"
+}