Function cachePluginSettings

src/utils/plugins/pluginLoader.ts:3281–3295

(plugins: LoadedPlugin[])

 * Called after loadAllPlugins resolves.
 */
export function cachePluginSettings(plugins: LoadedPlugin[]): void {
  const settings = mergePluginSettings(plugins)
  setPluginSettingsBase(settings)
  // Only bust the session settings cache if there are actually plugin settings
  // to merge. In the common case (no plugins, or plugins without settings) the
  // base layer is empty and loadSettingsFromDisk would produce the same result
  // anyway — resetting here would waste ~17ms on startup re-reading and
  // re-validating every settings file on the next getSettingsWithErrors() call.
  if (settings && Object.keys(settings).length > 0) {
    resetSettingsCache()
    logForDebugging(
      `Cached plugin settings with keys: ${Object.keys(settings).join(', ')}`,
    )
  }
}

/**
 * Type predicate: check if a value is a non-null, non-array object (i.e., a record).