fix(前端): 修复 ESLint 代码规范问题

- 修复 AccountTableFilters.vue 中的 vue/no-mutating-props 错误，使用 emit 模式替代直接修改 props
- 修复 TypeScript 类型错误，支持 Select 组件的 null 值类型
- 为所有空 catch 块添加错误日志，提升代码可维护性和调试能力
- 涉及文件：AccountTableFilters.vue, UserAllowedGroupsModal.vue, UserApiKeysModal.vue, UserBalanceModal.vue, AccountsView.vue, UsageView.vue, DashboardView.vue, ProfileView.vue

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

frontend/src/views/user/ProfileView.vue

@@ -35,6 +35,6 @@ const WalletIcon = { render: () => h('svg', { fill: 'none', viewBox: '0 0 24 24'
 const BoltIcon = { render: () => h('svg', { fill: 'none', viewBox: '0 0 24 24', stroke: 'currentColor', 'stroke-width': '1.5' }, [h('path', { d: 'm3.75 13.5 10.5-11.25L12 10.5h8.25L9.75 21.75 12 13.5H3.75z' })]) }
 const CalendarIcon = { render: () => h('svg', { fill: 'none', viewBox: '0 0 24 24', stroke: 'currentColor', 'stroke-width': '1.5' }, [h('path', { d: 'M6.75 3v2.25M17.25 3v2.25' })]) }
 
-onMounted(async () => { try { const s = await authAPI.getPublicSettings(); contactInfo.value = s.contact_info || '' } catch {} })
+onMounted(async () => { try { const s = await authAPI.getPublicSettings(); contactInfo.value = s.contact_info || '' } catch (error) { console.error('Failed to load contact info:', error) } })
 const formatCurrency = (v: number) => `$${v.toFixed(2)}`
 </script>