fix(agents): reuse effective release artifacts

docs/content/docs/contributing.cn.mdx

@@ -340,7 +340,7 @@ agents/drivers/<驱动模块名>/build/libs/
 #### `agents/versions.json` 什么时候修改
 
 <Callout type="warn">
-  修改已有驱动时，不要手动修改 `agents/versions.json`。Agent 发布工作流会对比上一个 `agents-v*` 标签，自动为发生变化的模块增加 patch 版本。
+  修改已有驱动时，不要手动修改 `agents/versions.json`。Agent 发布工作流会以上一个 `agents-v*` 标签对比运行时代码，并使用该版本发布后的版本同步提交作为有效版本基线，自动为发生变化的模块增加 patch 版本；未变化模块会复用上一不可变 Release 中经过校验的产物。
 </Callout>
 
 - 修改 `agents/drivers/<module>/`：发布时自动 bump 该模块版本

docs/content/docs/contributing.mdx

@@ -340,7 +340,7 @@ Restart DBX or disconnect and reconnect the database so the old agent process ex
 #### When to Change `agents/versions.json`
 
 <Callout type="warn">
-  Do not edit `agents/versions.json` when changing an existing driver. The agent release workflow compares against the previous `agents-v*` tag and automatically increments the patch version of changed modules.
+  Do not edit `agents/versions.json` when changing an existing driver. The agent release workflow compares runtime files against the previous `agents-v*` tag, uses that release's post-release version-sync commit as the effective version baseline, and automatically increments the patch version of changed modules. Unchanged modules reuse verified artifacts from the previous immutable release.
 </Callout>
 
 - A change under `agents/drivers/<module>/` automatically bumps that module during release