Phase 003: remove the coding-agent and ekko-agent runtimes

Every chat session now runs through the Hermes bridge, so the three chat
chains become feature-equivalent instead of three partially-maintained
dispatch paths. Keeping the coding-agent and in-house agent runtimes alive
meant every bridge change had to be mirrored into two more runtimes that
had already drifted.

Historical rows are read, not migrated: sessions stored with the retired
source normalize to cli on load, workflow graphs naming the retired agents
keep loading and run on the bridge, and the visible-source check plus
SOURCE_LABELS still recognize the old value so those sessions stay listed.

The public surface follows the code: the OpenAPI generator and the MCP
chat-run tool schema drop the six retired entry fields so external callers
are not told about runtimes that no longer exist.

harness-check gains a RETIRED_RUNTIME scan so the residual check is a
mechanical gate instead of a manual grep, with the two surviving read-side
compat sites recorded with reasons.

Refs: docs/phases/phase_003.md

packages/client/src/i18n/locales/zh.ts

@@ -220,7 +220,6 @@ export default {
     groupMonitoringShort: '监控',
     groupTools: '工具',
     groupToolsShort: "工具",
-    codingAgents: "编程工具",
     versionPreview: "版本预览",
     settings: '设置',
     connected: '已连接',
@@ -2061,86 +2060,6 @@ export default {
     stopSuccess: "预览已停止",
   },
 
-  codingAgents: {
-    title: "编程工具",
-    notice: "并非所有提供商和模型都兼容。",
-    claudeDescription: "Anthropic CLI，适合 print mode 单次任务和交互式编程会话。",
-    codexDescription: "OpenAI CLI，以及 Hermes openai-codex provider 的仓库任务流程。",
-    copyCommand: "复制",
-    commandCopied: "命令已复制",
-    commandCopyFailed: "复制失败",
-    refresh: "刷新",
-    checking: "检测中",
-    installStatus: "安装情况",
-    installed: "已安装",
-    notInstalled: "未安装",
-    installRequired: "{agent} 未安装，请先安装后再创建会话。",
-    installNow: "一键安装",
-    installing: "安装中",
-    installSuccess: "安装完成",
-    installFailed: "安装失败",
-    installFailedHermesHint: "安装失败，请让 Hermes 帮你安装。",
-    installFailureReason: "错误原因",
-    nodeEnvironmentMissing: "未检测到可用的 Node/npm 环境，请先安装 Node.js 后重试。",
-    deleteNow: "删除",
-    deleting: "删除中",
-    deleteSuccess: "删除完成",
-    deleteFailed: "删除失败",
-    configFiles: "配置文件",
-    profileScope: "配置",
-    providerScope: "提供商",
-    providerPlaceholder: "例如 custom:glm",
-    modelScope: "模型",
-    modelPlaceholder: "选择模型",
-    launchModeScope: "启动方式",
-    launchModeGlobal: "全局默认配置",
-    launchModeScoped: "选择提供商和模型",
-    protocolScope: "协议",
-    protocolOpenAiChat: "OpenAI Chat Completions (/v1/chat/completions)",
-    protocolOpenAiResponses: "OpenAI Responses (/v1/responses)",
-    protocolAnthropicMessages: "Anthropic Messages (/v1/messages)",
-    reloadConfig: "重新读取配置",
-    configFileNotCreated: "未创建",
-    configLoadFailed: "读取配置文件失败",
-    loadFailed: "检测编程工具失败",
-    launch: "启动",
-    launchTitle: "启动编程工具",
-    nativeTerminal: "原生终端",
-    builtInTerminal: "内置终端",
-    launchPrepared: "启动配置已生成",
-    launchPrepareFailed: "生成启动配置失败",
-    nativeLaunchStarted: "已打开原生终端",
-    nativeLaunchFailed: "打开原生终端失败",
-    terminalTitle: "编程工具终端",
-    loadProvidersFailed: "读取当前配置的提供商失败",
-    selectProviderModel: "请选择提供商和模型",
-    launchConfigDir: "启动配置目录",
-    launchCommand: "启动命令",
-    table: {
-      tool: "工具",
-      kind: "步骤",
-      command: "命令",
-      note: "说明",
-      action: "操作",
-    },
-    kinds: {
-      install: "安装",
-      auth: "认证",
-      health: "检查",
-      run: "运行",
-    },
-    notes: {
-      claudeInstall: "全局安装 Claude Code CLI。",
-      codexInstall: "全局安装 Codex CLI。",
-      claudeAuth: "检查 Claude Code 登录状态；未登录时先运行 claude。",
-      codexAuth: "添加 Hermes 管理的 OpenAI Codex OAuth 凭证。",
-      claudeHealth: "检查自动更新器和本地 CLI 健康状态。",
-      codexHealth: "确认 Codex CLI 已在 PATH 中可用。",
-      claudeRun: "Print mode 最适合 API 驱动的单次任务。",
-      codexRun: "Codex 单次任务需要在 git 仓库中运行。",
-    },
-  },
-
   // 平台频道设置
   platform: {
     requireMention: "需要 {'@'}提及",
@@ -2328,7 +2247,7 @@ export default {
     cacheHitRate: '缓存命中率',
     modelBreakdown: '模型分布',
     agentBreakdown: 'Agent 分布',
-    agents: { hermes: 'Hermes Agent', claudeCode: 'Claude Code', codex: 'Codex', ekkoAgent: 'Ekko Agent', unknown: '未知' },
+    agents: { hermes: 'Hermes Agent', unknown: '未知' },
     dailyTrend: '每日用量',
     date: '日期',
     tokens: 'Token',