Replaces the events npm package (a CJS browserify polyfill) with a lightweight, pure ESM EventEmitter written in TypeScript. This fixes compatibility issues with Node 24's stricter ESM/CJS interop.

Problem:
The [email protected] npm package is CommonJS. In Node 24, the tightened CJS named export detection causes import { EventEmitter } from 'events' to fail when it resolves to the npm polyfill instead of the Node built-in.

Solution:

• Added a native ESM EventEmitter implementation directly in events.ts
• Prototype methods are assigned as enumerable properties so Object.assign mixin pattern continues to work
• Lazy __events initialization supports both class inheritance and mixin usage
• Removed the events npm dependency from package.json
• Channel interface now extends EventEmitter for proper typing

API surface implemented: on, addListener, once, off, removeListener, removeAllListeners, emit, listenerCount, listeners

Files changed (8):

• packages/feathers/src/events.ts — EventEmitter implementation + existing event hooks
• packages/feathers/src/events.test.ts — 18 new EventEmitter unit tests merged with existing service event tests
• packages/feathers/src/application.ts — import update
• packages/feathers/src/channel/base.ts — import update
• packages/feathers/src/declarations.ts — import update, Channel interface extends EventEmitter
• packages/feathers/src/service.ts — inlined emitter method names in protectedMethods
• packages/feathers/src/index.ts — exports EventEmitter
• packages/feathers/package.json — removed events dependency

Tests: 371 passed, 1 skipped (pre-existing). TypeScript clean.