refactor(agent-loop): rename LoopAgent to ReactLoopAgent

Rename the concrete Agent class to make its ReAct-style reasoning loop
explicit in the name. Package name, default-export plugin (`AgentLoop`),
and the `ctx.agentLoop` service key are unchanged.

packages/tool-bash/src/index.ts

@@ -303,7 +303,7 @@ export function apply(ctx: Context): void {
       )
     } catch (error: unknown) {
       // The ONE expected failure: the agent was disposed between task
-      // completion and this injection (LoopAgent.inject throws
+      // completion and this injection (ReactLoopAgent.inject throws
       // `agent "<id>" is disposed`). That race is benign — drop the notice.
       // Anything else is a real bug and must surface, not be swallowed.
       if (error instanceof Error && error.message.includes('is disposed')) return

packages/tool-bash/tests/integration.spec.ts

@@ -6,7 +6,7 @@ import type { SessionEvent } from '@deepseek-ai/dsh-session'
 import SystemPrompt from '@deepseek-ai/dsh-system-prompt'
 import ToolRegistry from '@deepseek-ai/dsh-tools'
 import AgentRegistry from '@deepseek-ai/dsh-agent'
-import AgentLoop, { LoopAgent } from '@deepseek-ai/dsh-agent-loop'
+import AgentLoop, { ReactLoopAgent } from '@deepseek-ai/dsh-agent-loop'
 import { LocalBashExecutor } from '@deepseek-ai/dsh-bash-local'
 import * as ToolBash from '@deepseek-ai/dsh-tool-bash'
 import { MockAdapter, textResponse, toolCallResponse } from '../../agent-loop/tests/mock-adapter.ts'
@@ -30,7 +30,7 @@ async function harness(adapter: MockAdapter) {
   return ctx
 }
 
-function waitForIdle(ctx: Context, agent: LoopAgent): Promise<void> {
+function waitForIdle(ctx: Context, agent: ReactLoopAgent): Promise<void> {
   return new Promise((resolve) => {
     const dispose = ctx.on('agent/status', (subject, status) => {
       if (subject === agent && status === 'idle') {
@@ -41,7 +41,7 @@ function waitForIdle(ctx: Context, agent: LoopAgent): Promise<void> {
   })
 }
 
-function events(agent: LoopAgent): SessionEvent[] {
+function events(agent: ReactLoopAgent): SessionEvent[] {
   return [...agent.session.events]
 }