Remove .mcp.json from repo (user-local config)

Was accidentally committed with a hardcoded absolute path.
The install command generates per-user MCP configs in the
correct editor-specific locations. Added to .gitignore.

Author: DeusData

.gitignore

@@ -31,6 +31,9 @@ Thumbs.db
 *.db-wal
 *.db-shm
 
+# MCP config (user-local, generated by install command)
+.mcp.json
+
 # MCP Registry auth tokens
 .mcpregistry_*