chore: enforce lint across codebase and ban "maybe" in identifiers

Remove member-ordering and complexity eslint-disable comments by reordering
class members and applying targeted fixes. Add metoyou/no-maybe-in-naming,
type-safe WebRTC e2e harness helpers, and resolve remaining lint errors so
npm run lint exits cleanly.

Co-authored-by: Cursor <cursoragent@cursor.com>

toju-app/src/app/domains/plugins/domain/rules/plugin-local-file.rules.spec.ts

@@ -3,11 +3,7 @@ import {
   expect,
   it
 } from 'vitest';
-import {
-  collectPluginReadRoots,
-  fileUrlToPath,
-  pluginFileParentDir
-} from './plugin-local-file.rules';
+import { collectPluginReadRoots, fileUrlToPath } from './plugin-local-file.rules';
 
 describe('plugin-local-file.rules', () => {
   it('resolves linux file URLs to absolute paths', () => {