Add tests for editEvent, deleteEvent, toggles, and improve JS branch coverage

- Add 8 AccountController tests: editEvent GET/POST, access denied, delete, toggle online/secret, Stripe block
- Add editor.js test for text/element node handling in sanitizeNode
- Add cookie-consent test for banner without buttons (partial branch coverage)

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

tests/js/cookie-consent.test.js

@@ -49,6 +49,13 @@ describe('initCookieConsent', () => {
         expect(banner.classList.contains('hidden')).toBe(true)
     })
 
+    it('handles banner without buttons', () => {
+        document.body.innerHTML = '<div id="cookie-banner" class="hidden"></div>'
+        initCookieConsent()
+        const banner = document.getElementById('cookie-banner')
+        expect(banner.classList.contains('hidden')).toBe(false)
+    })
+
     it('does nothing without banner element', () => {
         document.body.innerHTML = ''
         expect(() => initCookieConsent()).not.toThrow()

tests/js/editor.test.js

@@ -110,6 +110,14 @@ describe('ETicketEditor', () => {
         expect(event.defaultPrevented).toBe(true)
     })
 
+    it('sanitizeNode handles text nodes and element nodes', () => {
+        const html = 'Hello <b>world</b> plain'
+        const result = sanitizeHtml(html)
+        expect(result).toContain('Hello')
+        expect(result).toContain('<b>world</b>')
+        expect(result).toContain('plain')
+    })
+
     it('allows non-tab keys', () => {
         const editor = createEditor()
         const content = editor.querySelector('.ete-content')