fix: security hardening + code quality improvements (401 retry limit, UUID crypto, debounce this-bug, deduplicate CSS/helpers, optimize SW precache)

tests/helpers.test.js

@@ -3,7 +3,7 @@
  */
 
 import { test, describe, assertEquals, assertTrue } from './test-runner.js'
-import { escapeHTML, formatPrice, formatRelativeTime, debounce, truncate } from '../js/utils/helpers.js'
+import { escapeHTML, formatRelativeTime, debounce, truncate } from '../js/utils/helpers.js'
 
 describe('escapeHTML', () => {
     test('escapes < and >', () => {
@@ -40,40 +40,6 @@ describe('escapeHTML', () => {
     })
 })
 
-describe('formatPrice', () => {
-    test('formats EUR correctly', () => {
-        assertEquals(formatPrice(99.5, 'EUR'), '€ 99.50')
-    })
-
-    test('formats USD correctly', () => {
-        assertEquals(formatPrice(99.5, 'USD'), '$ 99.50')
-    })
-
-    test('formats CHF correctly', () => {
-        assertEquals(formatPrice(99.5, 'CHF'), 'CHF 99.50')
-    })
-
-    test('formats XMR with 4 decimals', () => {
-        assertEquals(formatPrice(0.5, 'XMR'), '0.5000 ɱ')
-    })
-
-    test('handles null price', () => {
-        assertEquals(formatPrice(null, 'EUR'), '–')
-    })
-
-    test('handles undefined price', () => {
-        assertEquals(formatPrice(undefined, 'EUR'), '–')
-    })
-
-    test('defaults to EUR', () => {
-        assertEquals(formatPrice(10), '€ 10.00')
-    })
-
-    test('handles unknown currency', () => {
-        assertEquals(formatPrice(10, 'GBP'), 'GBP 10.00')
-    })
-})
-
 describe('formatRelativeTime', () => {
     test('formats seconds ago', () => {
         const date = new Date(Date.now() - 30000) // 30 seconds ago