chore(mcp): clear neuledge-context project scope from .mcp.json

Removes the project-scoped context MCP server entry with pinned library filters.
Context7 is now integrated directly into the research skill; the neuledge-context
project scope is no longer needed here.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.mcp.json

@@ -1,18 +1,3 @@
 {
-  "mcpServers": {
-    "context": {
-      "type": "stdio",
-      "command": "context",
-      "args": [
-        "serve",
-        "--libs",
-        "claude-code-docs@2.1.98",
-        "mcp-docs@latest",
-        "agent-skills-standard@latest",
-        "github-copilot-docs@latest",
-        "openai-agents-sdk@latest"
-      ],
-      "env": {}
-    }
-  }
-}
+  "mcpServers": {}
+}