docs: replace front door terminology

docs/cordis-tutorial/07-into-the-harness.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 docs/cordis-tutorial/07-into-the-harness.md
-07-into-the-harness.md: 38483b5c4993a44562970782dca5f676e4cb84f6
-07-into-the-harness.zh.md: 59ce716bdace894682bc1c8e6e00cf174008c26c
+07-into-the-harness.md: 69133786f58541b015aed080f4ac8fb2a7e488c0
+07-into-the-harness.zh.md: bc9c61da984e3eb691eb6bfbe59ae556823e82de

docs/cordis-tutorial/07-into-the-harness.md

@@ -95,7 +95,7 @@ The logger fired first: `tools/result` is emitted as part of result materializat
 
 ## From here to a full agent
 
-A real agent is this composition plus more plugins: an LLM adapter, the agent loop, persistence, a front end. Compare [examples/headless-agent/cordis.yml](../../examples/headless-agent/cordis.yml) — you can read every entry in it now. Add your `greet-tool.ts` to a copy of that file.
+A real agent is this composition plus more plugins: an LLM adapter, the agent loop, persistence, an entry point. Compare [examples/headless-agent/cordis.yml](../../examples/headless-agent/cordis.yml) — you can read every entry in it now. Add your `greet-tool.ts` to a copy of that file.
 
 Where to go next:
 

docs/cordis-tutorial/07-into-the-harness.zh.md

@@ -95,7 +95,7 @@ logger 会先触发：`tools/result` 在结果物化过程中发出，发生在
 
 ## 从这里走向完整 agent（智能体）
 
-真实 agent 就是这套组合再加上更多插件：LLM（大语言模型）适配器、agent loop（智能体循环）、持久化和前端。对照 [examples/headless-agent/cordis.yml](../../examples/headless-agent/cordis.yml)，你现在已经可以读懂其中每个配置项。将 `greet-tool.ts` 加入该文件的副本即可。
+真实 agent 就是这套组合再加上更多插件：LLM（大语言模型）适配器、agent loop（智能体循环）、持久化和运行入口。对照 [examples/headless-agent/cordis.yml](../../examples/headless-agent/cordis.yml)，你现在已经可以读懂其中每个配置项。将 `greet-tool.ts` 加入该文件的副本即可。
 
 后续可以阅读：