Fix ESLint globals, parseFloat to Number.parseFloat, label for, add AccountController coverage tests

- Add setTimeout, globalThis, navigator, fetch, caches etc to ESLint globals
- Use Number.parseFloat in event-map.js
- Add for attribute to admin events search label
- Add tests: events search, toggle/delete access denied for other user

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

eslint.config.js

@@ -6,6 +6,15 @@ export default [
                 document: "readonly",
                 window: "readonly",
                 console: "readonly",
+                setTimeout: "readonly",
+                globalThis: "readonly",
+                navigator: "readonly",
+                fetch: "readonly",
+                caches: "readonly",
+                Request: "readonly",
+                Response: "readonly",
+                BroadcastChannel: "readonly",
+                DOMParser: "readonly",
             },
         },
         rules: {