chore: delete experimental/calm-explorer

.gitignore

@@ -26,7 +26,6 @@ docs/contributing.md
 /calm-hub-ui/package-lock.json
 /cli/package-lock.json
 /docs/package-lock.json
-/experimental/calm-explorer/package-lock.json
 /shared/package-lock.json
 
 **/.vscode**/

.npmrc

@@ -2,3 +2,13 @@
 # Blocks unsupported versions (e.g. Node 18, 20, 23) but still allows
 # Node 24+ since engines includes ">=24.10.0" for local development.
 engine-strict=true
+
+# Ensure npm resolves optional native bindings for all CI platforms,
+# not just the current developer machine. Prevents missing-binding
+# errors (e.g. @tailwindcss/oxide) when the lockfile is regenerated
+# on macOS but consumed on Linux runners.
+supportedArchitectures[os][]=current
+supportedArchitectures[os][]=linux
+supportedArchitectures[cpu][]=current
+supportedArchitectures[cpu][]=x64
+supportedArchitectures[cpu][]=arm64