fix: stub react-devtools-core for bun compile

Ink statically imports react-devtools-core (only used when DEV=true).
With --external, bun compile leaves a runtime require that fails in the
standalone binary. Instead, provide a no-op stub that bun bundles inline.

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

scripts/build-rpm.sh

@@ -19,7 +19,14 @@ pnpm build
 echo "==> Bundling standalone binaries..."
 mkdir -p dist
 rm -f dist/mcpctl dist/mcpctl-local dist/mcpctl-*.rpm
-bun build src/cli/src/index.ts --compile --outfile dist/mcpctl --external react-devtools-core
+
+# Ink optionally imports react-devtools-core which isn't installed.
+# Provide a no-op stub so bun can bundle it (it's only invoked when DEV=true).
+if [ ! -e node_modules/react-devtools-core ]; then
+  ln -s ../src/cli/stubs/react-devtools-core node_modules/react-devtools-core
+fi
+
+bun build src/cli/src/index.ts --compile --outfile dist/mcpctl
 bun build src/mcplocal/src/main.ts --compile --outfile dist/mcpctl-local
 
 echo "==> Packaging RPM..."