Fix bundled browser MCP runtime

[4xiomdev]

Summary

• sign the bundled Node runtime with allow-jit in release builds so browser MCP helpers can start
• hide Codex debug details from the About popover in release builds
• wait for browser MCP startup before starting the first turn and add truthful capability notes if startup fails
• bump the app repo marketing version to 1.0.5

Testing

• xcodebuild -project /Users/4xiom/orbit/Orbit.xcodeproj -scheme Orbit -destination "platform=macOS" CODE_SIGNING_ALLOWED=NO build
• xcodebuild test -project /Users/4xiom/orbit/Orbit.xcodeproj -scheme Orbit -destination "platform=macOS" CODE_SIGNING_ALLOWED=NO CODE_SIGNING_REQUIRED=NO -only-testing:OrbitTests
• ORBIT_SKIP_GITHUB_RELEASE=1 /Users/4xiom/orbit/scripts/release.sh 1.0.5
• codesign -d --entitlements :- /Users/4xiom/orbit/build-20260410014709/export/Orbit.app/Contents/Resources/CodexRuntime/bin/node
• /Users/4xiom/orbit/build-20260410014709/export/Orbit.app/Contents/Resources/CodexRuntime/bin/playwright-mcp --version
• /Users/4xiom/orbit/build-20260410014709/export/Orbit.app/Contents/Resources/CodexRuntime/bin/chrome-devtools-mcp --version