feat(tls-fingerprint): 新增 TLS 指纹 Profile 数据库管理及代码质量优化

新增功能：
- 新增 TLS 指纹 Profile CRUD 管理（Ent schema + 迁移 + Admin API + 前端管理界面）
- 支持账号绑定数据库中的自定义 TLS Profile，或随机选择（profile_id=-1）
- HTTPUpstream.DoWithTLS 接口从 bool 改为 *tlsfingerprint.Profile，支持按账号指定 Profile
- AccountUsageService 注入 TLSFingerprintProfileService，统一 usage 场景与网关的 Profile 解析逻辑

代码优化：
- 删除已被 TLSFingerprintProfileService 完全取代的 registry.go 死代码（418 行）
- 提取 3 个 dialer 的重复 TLS 握手逻辑为 performTLSHandshake() 共用函数
- 修复 GetTLSFingerprintProfileID 缺少 json.Number 处理的 bug
- gateway_service.Forward 中 ResolveTLSProfile 从重试循环内重复调用改为预解析局部变量
- 删除冗余的 buildClientHelloSpec() 单行 wrapper 和 int64(e.ID) 无效转换
- tls_fingerprint_profile_cache.go 日志从 log.Printf 改为 slog 结构化日志
- dialer_capture_test.go 添加 //go:build integration 标签，防止 CI 失败
- 去重 TestProfileExpectation 类型至共享 test_types_test.go
- 修复 9 个测试文件缺少 tlsfingerprint import 的编译错误
- 修复 error_policy_integration_test.go 中 handleError 回调签名被错误替换的问题

frontend/src/i18n/locales/en.ts

@@ -2304,7 +2304,9 @@ export default {
         },
         tlsFingerprint: {
           label: 'TLS Fingerprint Simulation',
-          hint: 'Simulate Node.js/Claude Code client TLS fingerprint'
+          hint: 'Simulate Node.js/Claude Code client TLS fingerprint',
+          defaultProfile: 'Built-in Default',
+          randomProfile: 'Random'
         },
         sessionIdMasking: {
           label: 'Session ID Masking',
@@ -4588,6 +4590,62 @@ export default {
       failedToSave: 'Failed to save rule',
       failedToDelete: 'Failed to delete rule',
       failedToToggle: 'Failed to toggle status'
+    },
+
+    // TLS Fingerprint Profiles
+    tlsFingerprintProfiles: {
+      title: 'TLS Fingerprint Profiles',
+      description: 'Manage TLS fingerprint profiles for simulating specific client TLS handshake characteristics',
+      createProfile: 'Create Profile',
+      editProfile: 'Edit Profile',
+      deleteProfile: 'Delete Profile',
+      noProfiles: 'No profiles configured',
+      createFirstProfile: 'Create your first TLS fingerprint profile',
+
+      columns: {
+        name: 'Name',
+        description: 'Description',
+        grease: 'GREASE',
+        alpn: 'ALPN',
+        actions: 'Actions'
+      },
+
+      form: {
+        pasteYaml: 'Paste YAML Configuration',
+        pasteYamlPlaceholder: 'Paste YAML output from TLS Fingerprint Collector here...',
+        pasteYamlHint: 'Paste the YAML copied from TLS Fingerprint Collector to auto-fill all fields.',
+        openCollector: 'Open Collector',
+        parseYaml: 'Parse YAML',
+        yamlParsed: 'YAML parsed successfully, fields auto-filled',
+        yamlParseFailed: 'Failed to parse YAML: name field not found',
+        name: 'Profile Name',
+        namePlaceholder: 'e.g. macOS Node.js v24',
+        description: 'Description',
+        descriptionPlaceholder: 'Optional description for this profile',
+        enableGrease: 'Enable GREASE',
+        enableGreaseHint: 'Insert GREASE values in TLS ClientHello extensions',
+        cipherSuites: 'Cipher Suites',
+        cipherSuitesHint: 'Comma-separated hex values, e.g. 0x1301, 0x1302, 0xc02c',
+        curves: 'Elliptic Curves',
+        curvesHint: 'Comma-separated curve IDs',
+        pointFormats: 'Point Formats',
+        signatureAlgorithms: 'Signature Algorithms',
+        alpnProtocols: 'ALPN Protocols',
+        alpnProtocolsHint: 'Comma-separated, e.g. h2, http/1.1',
+        supportedVersions: 'Supported TLS Versions',
+        keyShareGroups: 'Key Share Groups',
+        pskModes: 'PSK Modes',
+        extensions: 'Extensions'
+      },
+
+      deleteConfirm: 'Delete Profile',
+      deleteConfirmMessage: 'Are you sure you want to delete profile "{name}"? Accounts using this profile will fall back to the built-in default.',
+      createSuccess: 'Profile created successfully',
+      updateSuccess: 'Profile updated successfully',
+      deleteSuccess: 'Profile deleted successfully',
+      loadFailed: 'Failed to load profiles',
+      saveFailed: 'Failed to save profile',
+      deleteFailed: 'Failed to delete profile'
     }
   },
 

frontend/src/i18n/locales/zh.ts

@@ -2448,7 +2448,9 @@ export default {
         },
         tlsFingerprint: {
           label: 'TLS 指纹模拟',
-          hint: '模拟 Node.js/Claude Code 客户端的 TLS 指纹'
+          hint: '模拟 Node.js/Claude Code 客户端的 TLS 指纹',
+          defaultProfile: '内置默认',
+          randomProfile: '随机'
         },
         sessionIdMasking: {
           label: '会话 ID 伪装',
@@ -4752,6 +4754,62 @@ export default {
       failedToSave: '保存规则失败',
       failedToDelete: '删除规则失败',
       failedToToggle: '切换状态失败'
+    },
+
+    // TLS 指纹模板
+    tlsFingerprintProfiles: {
+      title: 'TLS 指纹模板',
+      description: '管理 TLS 指纹模板，用于模拟特定客户端的 TLS 握手特征',
+      createProfile: '创建模板',
+      editProfile: '编辑模板',
+      deleteProfile: '删除模板',
+      noProfiles: '暂无模板',
+      createFirstProfile: '创建你的第一个 TLS 指纹模板',
+
+      columns: {
+        name: '名称',
+        description: '描述',
+        grease: 'GREASE',
+        alpn: 'ALPN',
+        actions: '操作'
+      },
+
+      form: {
+        pasteYaml: '粘贴 YAML 配置',
+        pasteYamlPlaceholder: '将 TLS 指纹采集器复制的 YAML 粘贴到这里...',
+        pasteYamlHint: '粘贴从 TLS 指纹采集器复制的 YAML 配置，自动填充所有字段。',
+        openCollector: '打开采集器',
+        parseYaml: '解析 YAML',
+        yamlParsed: 'YAML 解析成功，字段已自动填充',
+        yamlParseFailed: 'YAML 解析失败：未找到 name 字段',
+        name: '模板名称',
+        namePlaceholder: '例如 macOS Node.js v24',
+        description: '描述',
+        descriptionPlaceholder: '可选的模板描述',
+        enableGrease: '启用 GREASE',
+        enableGreaseHint: '在 TLS ClientHello 扩展中插入 GREASE 值',
+        cipherSuites: '密码套件',
+        cipherSuitesHint: '逗号分隔的十六进制值，例如 0x1301, 0x1302, 0xc02c',
+        curves: '椭圆曲线',
+        curvesHint: '逗号分隔的曲线 ID',
+        pointFormats: '点格式',
+        signatureAlgorithms: '签名算法',
+        alpnProtocols: 'ALPN 协议',
+        alpnProtocolsHint: '逗号分隔，例如 h2, http/1.1',
+        supportedVersions: '支持的 TLS 版本',
+        keyShareGroups: '密钥共享组',
+        pskModes: 'PSK 模式',
+        extensions: '扩展'
+      },
+
+      deleteConfirm: '删除模板',
+      deleteConfirmMessage: '确定要删除模板 "{name}" 吗？使用此模板的账号将回退到内置默认值。',
+      createSuccess: '模板创建成功',
+      updateSuccess: '模板更新成功',
+      deleteSuccess: '模板删除成功',
+      loadFailed: '加载模板失败',
+      saveFailed: '保存模板失败',
+      deleteFailed: '删除模板失败'
     }
   },