refactor: structured command/run payload {commandId, name, args, source}

The line field is deleted (pre-release, no shim): name and args are
parseCommand's own split — name plus verbatim rawInput with its separator
whitespace — so a consumer (a projection unit folding its own command
records, a rich command card) never re-parses a line. CommandNode mirrors
the split (name/args, both null on a run-less cross-window node); the
generic card rebuilds its display line as /name + args. The connection
fixture logs the same structured payload.

packages/ui/commands/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 packages/ui/commands/README.md
-README.md: db3d06f395fc50c8a6cf5901e42f0b09e083a07e
-README.zh.md: bb9b9d52c2fd0845b0795c37ba0155de319bae28
+README.md: 0a48516cf10902b0a83a8ea12299cc29342ea66d
+README.zh.md: 33ee0e0b3275350008f7bf612471eafa804fb1d0

packages/ui/commands/README.md

@@ -8,7 +8,7 @@ Plugin-owned human-command registry consumed by interactive UI adapters. The [pl
 
 `ctx.commands.register(definition)` registers one lowercase command name, description, optional unstructured-input hint, and abortable handler. A registered command is available to every composed command adapter; a plugin that is incompatible with a deployment does not register there. A plain-context registration is global. A command-producing plugin mounted beneath `agent.ctx` declares its own `commands` injection and creates an exact agent-scoped definition; it shadows a global definition with the same name. This child-injection shape preserves the agent scope without making the core agent loop depend on a UI service. Duplicate names within one layer fail during registration. Every disposer is the exact Cordis effect disposer, and registration or removal notifies every `commands/change` observer so live adapters can refresh discovery; observer failures are logged and cannot veto the registry mutation or starve later observers.
 
-`list(agent)` returns immutable, name-sorted descriptors after scoped shadowing. `find(agent, name)` returns the corresponding definition. `execute(agent, line, signal)` uses `parseCommand()` and runs only a known command, returning `undefined` for invalid syntax or unknown names. A resolved command's lifecycle is durably logged on the receiving agent's session as the log-only pair `command/run` (before the handler, with a minted `commandId`, the exact line, and the issuing `CommandSource`) and `command/done` (at settlement, with the outcome kind and verbatim text; a thrown or aborted handler settles as `kind: 'error'`). Admission misses log nothing. Lifecycle appends are serialized per session through `SessionStore.appendOutOfBand`, so the service requires a composed `sessions` service.
+`list(agent)` returns immutable, name-sorted descriptors after scoped shadowing. `find(agent, name)` returns the corresponding definition. `execute(agent, line, signal)` uses `parseCommand()` and runs only a known command, returning `undefined` for invalid syntax or unknown names. A resolved command's lifecycle is durably logged on the receiving agent's session as the log-only pair `command/run` (before the handler, with a minted `commandId`, the parser's structured `name`/`args` split, and the issuing `CommandSource`) and `command/done` (at settlement, with the outcome kind and verbatim text; a thrown or aborted handler settles as `kind: 'error'`). Admission misses log nothing. Lifecycle appends are serialized per session through `SessionStore.appendOutOfBand`, so the service requires a composed `sessions` service.
 
 `parseCommand()` recognizes a slash at byte zero, a lowercase name containing letters, digits, `_`, or `-`, and either end-of-input or whitespace. It returns every byte after the name as `rawInput`, including separator whitespace; consumers own their command-specific grammar and may normalize only what that grammar permits.
 

packages/ui/commands/README.zh.md

@@ -8,7 +8,7 @@
 
 `ctx.commands.register(definition)` 注册一个小写命令名称、描述、可选的非结构化输入提示，以及可中止的处理器。每个已注册命令都可供所有已组合的命令适配器使用；与某项部署不兼容的插件不会在此注册。普通上下文中的注册全局生效。在 `agent.ctx` 下挂载的命令生产插件会声明自身的 `commands` 注入，并创建精确限定到该 agent 的定义；该定义会遮蔽同名的全局定义。这种子级注入形态保留了 agent 作用域，同时不会让核心 agent loop 依赖 UI 服务。同一层中的名称重复会在注册时失败。每个 disposer 都是 Cordis effect 返回的确切 disposer；注册或移除命令时，系统会通知每个 `commands/change` 观察者，使实时适配器能够刷新发现结果。观察者失败会写入日志，既不能否决注册表变更，也不能阻止后续观察者运行。
 
-`list(agent)` 在应用作用域遮蔽后，返回按名称排序的不可变描述符。`find(agent, name)` 返回相应定义。`execute(agent, line, signal)` 使用 `parseCommand()`，且只运行已知命令；语法无效或名称未知时返回 `undefined`。已解析命令的生命周期会以 log-only 事件对的形式持久记录在接收 agent 的会话日志中：`command/run`（进入处理器前记录，携带铸造的 `commandId`、精确命令行和发起方 `CommandSource`）与 `command/done`（结算时记录，携带结局种类与原样文本；处理器抛出或被中止时以 `kind: 'error'` 结算）。未通过准入的输入不记录任何事件。生命周期落账通过 `SessionStore.appendOutOfBand` 按会话串行化，因此本服务要求组合中存在 `sessions` 服务。
+`list(agent)` 在应用作用域遮蔽后，返回按名称排序的不可变描述符。`find(agent, name)` 返回相应定义。`execute(agent, line, signal)` 使用 `parseCommand()`，且只运行已知命令；语法无效或名称未知时返回 `undefined`。已解析命令的生命周期会以 log-only 事件对的形式持久记录在接收 agent 的会话日志中：`command/run`（进入处理器前记录，携带铸造的 `commandId`、解析器的结构化 `name`/`args` 切分和发起方 `CommandSource`）与 `command/done`（结算时记录，携带结局种类与原样文本；处理器抛出或被中止时以 `kind: 'error'` 结算）。未通过准入的输入不记录任何事件。生命周期落账通过 `SessionStore.appendOutOfBand` 按会话串行化，因此本服务要求组合中存在 `sessions` 服务。
 
 `parseCommand()` 识别位于字节零位置的斜杠、由小写字母、数字、`_` 或 `-` 构成的名称，以及名称后紧接输入末尾或空白的形式。它将名称后的每个字节作为 `rawInput` 返回，其中包括分隔空白；消费方拥有各命令专用的语法，只能执行该语法允许的规范化。
 

packages/ui/commands/src/index.ts

@@ -112,10 +112,13 @@ declare module '@deepseek-ai/dsh-session' {
     /**
      * A resolved slash command entered its handler. Log-only (never model
      * surface); paired with `command/done` by `commandId`, mirroring the
-     * `tool/call`↔`tool/result` pairing. `line` is the exact command line as
-     * dispatched.
+     * `tool/call`↔`tool/result` pairing. The payload is structured — `name`
+     * and `args` are `parseCommand`'s own split (name and verbatim rawInput,
+     * separator whitespace included), so a consumer (a projection unit
+     * folding its own command records, a rich command card) never re-parses
+     * a line.
      */
-    'command/run': { commandId: string; name: string; line: string; source: CommandSource }
+    'command/run': { commandId: string; name: string; args: string; source: CommandSource }
     /**
      * The paired command settled. `kind`/`text` carry the handler's verbatim
      * outcome (a thrown/aborted handler settles as `kind: 'error'` with the
@@ -354,7 +357,7 @@ export class CommandService extends Service {
     if (signal.aborted) throw abortError(signal)
     const commandId = this.mintCommandId()
     await this.appendLifecycle(agent.session, 'command/run', {
-      commandId, name: parsed.name, line, source: { kind: 'user' },
+      commandId, name: parsed.name, args: parsed.rawInput, source: { kind: 'user' },
     })
     const invocation = Object.freeze({ agent, rawInput: parsed.rawInput, signal })
     let result: CommandResult

packages/ui/commands/tests/commands.spec.ts

@@ -304,7 +304,7 @@ describe('CommandService', () => {
 
     const lifecycle = lifecycleOf(agent)
     expect(lifecycle).toMatchObject([
-      { type: 'command/run', data: { name: 'deploy', line: '/deploy now', source: { kind: 'user' } } },
+      { type: 'command/run', data: { name: 'deploy', args: ' now', source: { kind: 'user' } } },
       { type: 'command/done', data: { kind: 'success', text: 'deployed' } },
     ])
     const ids = lifecycle.map(event => (event.data as { commandId: string }).commandId)