refactor(web): remove --dev; mount the reload chain unconditionally

The client-hmr row joins the web bundle as an ordinary always-on roster
row: without a rebuild watcher rewriting client bundles it polls
unchanged files and stays idle. This deletes the --dev flag, the web
runtime's mode config, the mode-forked prompt contract, the DSH_WEB_MODE
bash variable, and the post-settlement row-creation machinery the
conditional row required. dsh web + pnpm run dev:web remains the
development loop.

apps/cli/reference/README.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write apps/cli/reference/README.md
-README.md: 8a38677868f85d4a5b24376a96f0e336c13fa89c
-README.zh.md: c0ee1a5fabb8eec6bd34a8a386b2e2409d570e55
+README.md: 46ea3c241d6775ce90a89c7be58901375a0634a3
+README.zh.md: f020f46260d6b04b87a4918a671ca6bcbed251d9

apps/cli/reference/README.md

@@ -24,7 +24,7 @@ The shipped apps own these command lines:
 
 | Profile | Arguments |
 |---|---|
-| `web` | `--host`, `--port`, `--dev`, repeatable `--trusted-host` |
+| `web` | `--host`, `--port`, repeatable `--trusted-host` |
 | `headless` | the task text, as the positional argument |
 
 A one-shot task (`dsh --profile headless "run the tests"`) creates one fresh persisted Agent through the core registry, submits the task, waits for quiescence, and flushes the Session before deriving the last non-empty assistant text and final `turn/end` reason from its durable interval. It prints the text on stdout and exits 0 for `completed`, else 1. An invocation with no task is a usage error from that app. The shipped headless profile mounts no ApiProxy, Host, HTTP server, Web runtime, or browser client; a successful run writes nothing to stderr and opens no listening port.
@@ -52,7 +52,7 @@ Git-hosted plugins that ship sources build during install through their `prepare
 
 ## Web alias
 
-`dsh web` is a hardcoded alias for `--profile web`; the flags after it belong to the web app, whose ordinary bundle provider parses them. `--host` and `--port` override the composed values of the rows that carry them, repeatable `--trusted-host` contributes invocation authorities through `ctx.webRuntime.trustedHosts` (a deployment expression concatenates its own authorities), and `--dev` switches the web-runtime row to development mode, which mounts the client-plugin HMR receiver row after Loader settlement; it expects a separate `pnpm run dev:web` watcher for no-refresh client bundle updates.
+`dsh web` is a hardcoded alias for `--profile web`; the flags after it belong to the web app, whose ordinary bundle provider parses them. `--host` and `--port` override the composed values of the rows that carry them, and repeatable `--trusted-host` contributes invocation authorities through `ctx.webRuntime.trustedHosts` (a deployment expression concatenates its own authorities). The client-plugin HMR receiver is always mounted and stays idle until a separate `pnpm run dev:web` watcher rebuilds client bundles.
 
 ```sh
 dsh web

apps/cli/reference/README.zh.md

@@ -24,7 +24,7 @@
 
 | Profile | 参数 |
 |---|---|
-| `web` | `--host`、`--port`、`--dev`、可重复的 `--trusted-host` |
+| `web` | `--host`、`--port`、可重复的 `--trusted-host` |
 | `headless` | 任务文本，作为位置参数 |
 
 一次性任务（`dsh --profile headless "run the tests"`）通过核心注册表创建一个全新的持久化 Agent（智能体），提交任务、等待完全停稳并对 Session 执行 flush，再从其持久化事件区间中推导最后一个非空 assistant 文本与最终 `turn/end` 原因。它在 stdout 打印文本，并在原因为 `completed` 时以 0 退出，否则以 1 退出。没有任务的调用是该应用的用法错误。随附 headless profile 不挂载 ApiProxy、Host、HTTP 服务器、Web 运行时或浏览器客户端；成功运行不会向 stderr 写入任何内容，也不会打开监听端口。
@@ -52,7 +52,7 @@ Git 托管、随附源码的插件在安装期间通过其 `prepare` 脚本构
 
 ## Web 别名
 
-`dsh web` 是 `--profile web` 的硬编码别名；写在它之后的 flag 属于 web 应用，由组合包中的普通提供方解析。`--host` 和 `--port` 覆盖承载它们的那些行的组合取值，可重复的 `--trusted-host` 通过 `ctx.webRuntime.trustedHosts` 提供本次调用的 authority（部署表达式会拼接自己的 authority），`--dev` 把 web-runtime 行切换到开发模式，由其在 Loader 结算后挂载客户端插件 HMR（热模块替换）接收器行；若要无刷新更新客户端 bundle，还需单独运行 `pnpm run dev:web` watcher。
+`dsh web` 是 `--profile web` 的硬编码别名；写在它之后的 flag 属于 web 应用，由组合包中的普通提供方解析。`--host` 和 `--port` 覆盖承载它们的那些行的组合取值，可重复的 `--trusted-host` 通过 `ctx.webRuntime.trustedHosts` 提供本次调用的 authority（部署表达式会拼接自己的 authority），客户端插件 HMR（热模块替换）接收器始终挂载，在单独运行的 `pnpm run dev:web` watcher 重建客户端 bundle 之前保持空闲。
 
 ```sh
 dsh web

apps/web/tests/hmr-live.e2e.ts

@@ -1,4 +1,4 @@
-/** Published dsh web --dev + pnpm dev:web → browser HMR, with no page reload. */
+/** Published dsh web + pnpm dev:web → browser HMR, with no page reload. */
 
 import { existsSync } from 'node:fs'
 import { mkdtemp, readFile, rm, writeFile } from 'node:fs/promises'
@@ -92,14 +92,14 @@ it('hot-reloads a real client-plugin source edit without refreshing the page', a
     watcher = subprocessCtx.subprocess.spawn(spawnSpec(['pnpm', 'run', 'dev:web'], REPO_ROOT))
     await waitForOutput(watcher, /dev-web: watching/, 'pnpm run dev:web')
     host = subprocessCtx.subprocess.spawn(spawnSpec(
-      [process.execPath, binPath, 'web', '--dev', '--port', '0'],
+      [process.execPath, binPath, 'web', '--port', '0'],
       world,
       {
         DEEPSEEK_API_KEY: 'keyless-hmr-no-call',
         DSH_HOME: join(world, '.dsh'),
       },
     ))
-    const baseUrl = await waitForOutput(host, /dsh web: (http:\/\/[^\s]+)/, 'built dsh web --dev')
+    const baseUrl = await waitForOutput(host, /dsh web: (http:\/\/[^\s]+)/, 'built dsh web')
     browser = await chromium.launch()
     const page = await browser.newPage()
     const pageErrors: string[] = []

apps/web/tests/replay-round-trip.e2e.ts

@@ -101,14 +101,14 @@ describe('web e2e: fresh round trip through the real assembly', () => {
       callId: CallId('web-url-probe'),
       name: 'bash',
       arguments: {
-        command: 'printf \'%s\\n%s\\n\' "$DSH_WEB_URL" "$DSH_WEB_MODE"',
+        command: 'printf \'%s\\n\' "$DSH_WEB_URL"',
         description: 'Print current Web runtime',
       },
       agent,
     })
     expect(result.isError).toBe(false)
     expect(result.content.filter(block => block.type === 'text').map(block => block.text).join(''))
-      .toBe(`${scaffold.baseUrl}\nproduction\n`)
+      .toBe(`${scaffold.baseUrl}\n`)
   })
 
   it.skipIf(MODE === 'record')('rendered the settled turn: markdown, tool row, composer restore', async () => {

apps/web/tests/scaffold.ts

@@ -416,7 +416,7 @@ export async function launchWebScaffold(options: LaunchOptions = {}): Promise<We
     // (apps/web IS @deepseek-ai/dsh-frontend); only the URL line is silenced.
     // Preserve the composed surface-context choice because a patch replaces
     // the row's complete config.
-    { id: 'web-runtime', config: { mode: 'production', printUrl: false, surfaceContext } },
+    { id: 'web-runtime', config: { printUrl: false, surfaceContext } },
     ...options.remoteAuthority === undefined
       ? []
       : [{ id: 'connection', config: { trustedHosts: [options.remoteAuthority] } }],

apps/web/tests/smoke-real.e2e.ts

@@ -27,7 +27,7 @@ import { chromium } from 'playwright'
 import { afterAll, beforeAll, describe, expect, it, onTestFailed } from 'vitest'
 import { REPO_ROOT, connectFreshWorkspace, newEnglishPage, probeFreePort, requireDist, saveFailureShot } from './support.ts'
 
-const DEVELOPMENT_PROMPT = fileURLToPath(new URL('./snapshots/web-runtime-context/development-prompt.expected.md', import.meta.url))
+const WEB_SURFACE_PROMPT = fileURLToPath(new URL('./snapshots/web-runtime-context/web-surface-prompt.expected.md', import.meta.url))
 
 function waitForReadyLine(child: ChildProcess): Promise<string> {
   return new Promise((resolveReady, reject) => {
@@ -187,7 +187,7 @@ describe('dsh web keyless CLI smoke', () => {
     }
   })
 
-  it('routes --dev runtime context and workspace instructions through the real CLI request', async () => {
+  it('routes web runtime context and workspace instructions through the real CLI request', async () => {
     requireDist()
     const workspace = mkdtempSync(join(tmpdir(), 'dsh-web-workspace-'))
     mkdirSync(join(workspace, '.git'))
@@ -226,7 +226,7 @@ describe('dsh web keyless CLI smoke', () => {
     const tsxLoader = pathToFileURL(createRequire(join(REPO_ROOT, 'package.json')).resolve('tsx')).href
     const child = spawn(
       process.execPath,
-      ['--import', tsxLoader, join(REPO_ROOT, 'apps/cli/src/bin.ts'), 'web', '--port', '0', '--dev'],
+      ['--import', tsxLoader, join(REPO_ROOT, 'apps/cli/src/bin.ts'), 'web', '--port', '0'],
       {
         cwd: workspace,
         env: {
@@ -261,7 +261,7 @@ describe('dsh web keyless CLI smoke', () => {
       const workspaceMessage = captured.messages?.find(message =>
         message.role === 'user' && message.content?.includes('web-workspace-context-probe'))
       const systemMessage = captured.messages?.find(message => message.role === 'system')
-      const expectedWebSection = readFileSync(DEVELOPMENT_PROMPT, 'utf8').trimEnd()
+      const expectedWebSection = readFileSync(WEB_SURFACE_PROMPT, 'utf8').trimEnd()
         .replace('{{webUrl}}', baseUrl)
       expect(systemMessage?.content).toContain(expectedWebSection)
       expect(workspaceMessage).toMatchInlineSnapshot(`

apps/web/tests/snapshots/fresh-round-trip/system-prompt.expected.md

@@ -2,6 +2,6 @@ You are an AI agent powered by the DeepSeek Harness SDK.
 
 The DeepSeek Harness implementation checkout is at {{sourceRoot}}. The checkout location and current working directory are separate values and may differ; never infer the working directory from this path. Use pwd to determine the current working directory. Use this checkout only to inspect or extend DSH itself.
 
-You are interacting with the user through the DeepSeek Harness Web GUI at {{webUrl}}. When the user refers to "this page", "this GUI", or "this app" without naming another target, they mean this GUI. The browser provides no implicit DOM, route, or screenshot context. This Web process was launched without `--dev`, so HMR is inactive: rebuild the affected Web artifacts and verify this existing URL after a page refresh. If the user wants no-refresh client-plugin updates, explain that this GUI must be restarted with `dsh web --dev` and `pnpm run dev:web` must also run from this same checkout; do not present either command alone as sufficient. Starting another server does not update this GUI. The apps/web Vite entry builds the shell but is not a standalone application because only dsh web injects window.__DSH_BOOT__. Do not start a replacement server unless the user asks; if one is needed, use a managed background task and verify its exact URL.
+You are interacting with the user through the DeepSeek Harness Web GUI at {{webUrl}}. When the user refers to "this page", "this GUI", or "this app" without naming another target, they mean this GUI. The browser provides no implicit DOM, route, or screenshot context. The client-plugin HMR receiver is active, but client-plugin changes reload without a refresh only while `pnpm run dev:web` is also running from this same checkout to rebuild their bundles; verify that watcher before promising automatic updates. Every other change — the apps/web shell and plain packages — requires rebuilding the affected Web artifacts and verifying this existing URL after a page refresh. Starting another server does not update this GUI. The apps/web Vite entry builds the shell but is not a standalone application because only dsh web injects window.__DSH_BOOT__. Do not start a replacement server unless the user asks; if one is needed, use a managed background task and verify its exact URL.
 
 You are a coding agent powered by the deepseek-v4-flash model. Your working directory is {{cwd}}.

apps/web/tests/snapshots/web-runtime-context/development-prompt.expected.md

@@ -1 +0,0 @@
-You are interacting with the user through the DeepSeek Harness Web GUI at {{webUrl}}. When the user refers to "this page", "this GUI", or "this app" without naming another target, they mean this GUI. The browser provides no implicit DOM, route, or screenshot context. This Web process was launched with `dsh web --dev`, so its client-plugin HMR receiver is active. No-refresh updates occur only when `pnpm run dev:web` is also running from this same checkout to rebuild client-plugin bundles; verify that watcher before promising automatic updates. Client-plugin changes then reload automatically, while apps/web shell and other plain-package changes still require a rebuild and page refresh. Starting another server does not update this GUI. The apps/web Vite entry builds the shell but is not a standalone application because only dsh web injects window.__DSH_BOOT__. Do not start a replacement server unless the user asks; if one is needed, use a managed background task and verify its exact URL.

apps/web/tests/snapshots/web-runtime-context/web-surface-prompt.expected.md

@@ -0,0 +1 @@
+You are interacting with the user through the DeepSeek Harness Web GUI at {{webUrl}}. When the user refers to "this page", "this GUI", or "this app" without naming another target, they mean this GUI. The browser provides no implicit DOM, route, or screenshot context. The client-plugin HMR receiver is active, but client-plugin changes reload without a refresh only while `pnpm run dev:web` is also running from this same checkout to rebuild their bundles; verify that watcher before promising automatic updates. Every other change — the apps/web shell and plain packages — requires rebuilding the affected Web artifacts and verifying this existing URL after a page refresh. Starting another server does not update this GUI. The apps/web Vite entry builds the shell but is not a standalone application because only dsh web injects window.__DSH_BOOT__. Do not start a replacement server unless the user asks; if one is needed, use a managed background task and verify its exact URL.

apps/web/vite.config.ts

@@ -6,7 +6,7 @@ import react from '@vitejs/plugin-react'
 const src = (rel: string): string => fileURLToPath(new URL(rel, import.meta.url))
 const STANDALONE_ERROR = 'apps/web is not a standalone application: bare Vite cannot inject window.__DSH_BOOT__. '
   + 'From a repository checkout, run `pnpm dsh web`; an installed package uses `dsh web`. '
-  + 'For client-plugin HMR, run `pnpm dsh web --dev` together with `pnpm run dev:web`.'
+  + 'For client-plugin HMR, run `pnpm dsh web` together with `pnpm run dev:web`.'
 
 /** Fail before a Vite dev or preview server can expose the boot-manifest-free shell. */
 function rejectStandaloneServe(): Plugin {