fix(cordis): make config reload transactional

vendor/cordis/src/events.ts

@@ -334,7 +334,7 @@ export interface Events {
   /** Interception hook for a service binding (no core producer). */
   'internal/service'(this: Context, name: string, value: any): void
   /** Waterfall: a fiber config update is being applied; skip `next()` to veto. */
-  'internal/update'(this: Fiber, config: any, noSave: boolean, next: () => void): void
+  'internal/update'(this: Fiber, config: any, noSave: boolean, next: () => void | Promise<void>): void | Promise<void>
   /** Waterfall: a service is being read through the context proxy. */
   'internal/get'(ctx: Context, name: string, error: Error, next: () => any): any
   /** Waterfall: a service is being written through the context proxy. */

vendor/cordis/src/fiber.ts

@@ -728,13 +728,13 @@ export class Fiber {
    *
    * @param config — the new raw config; validated before anything restarts.
    * @param noSave — hint for persistence hooks not to write the change back.
-   * @returns nothing; the restart runs behind the `internal/update` waterfall.
-   * @throws {ValidationError} when the new config fails validation.
+   * @returns the update waterfall result; the default restart returns a promise.
+   * @throws when validation, an update listener, or the restarted plugin fails.
    */
   update(config: any, noSave = false) {
     this.assertActive()
     config = resolveConfig(this.runtime!, config)
-    this.context.waterfall(this, 'internal/update', config, noSave, () => {
+    return this.context.waterfall(this, 'internal/update', config, noSave, () => {
       this.config = config
       this._error = undefined
       return this.restart()