add sandbox extra env config

adapter/config/loader.py

@@ -324,9 +324,24 @@ def _load_sandbox_config(
             env,
             'APP_SANDBOX_VOLUME_MOUNT_PATH',
         ),
+        extra_env=_load_sandbox_extra_env(section),
     )
 
 
+def _load_sandbox_extra_env(section: Mapping[str, object]) -> dict[str, str]:
+    raw = section.get('env')
+    if raw is None:
+        return {}
+    if not isinstance(raw, dict):
+        raise ConfigError('invalid sandbox.env')
+    result: dict[str, str] = {}
+    for key, value in raw.items():
+        if not isinstance(key, str):
+            raise ConfigError('invalid sandbox.env key')
+        result[key] = str(value)
+    return result
+
+
 def _load_otel_config(
     data: Mapping[str, object],
     env: Mapping[str, str],

adapter/config/model.py

@@ -59,6 +59,7 @@ class SandboxConfig:
     dependencies_mount_path: str
     lambda_tools_mount_path: str
     volume_mount_path: str
+    extra_env: dict[str, str]
 
 
 @dataclass(frozen=True, slots=True)

adapter/docker/runtime.py

@@ -69,7 +69,7 @@ class DockerSandboxRuntime(SandboxRuntime):
                     container = self._client.containers.run(
                         self._config.image,
                         detach=True,
-                        environment={'AGENT_ID': agent_id},
+                        environment={**self._config.extra_env, 'AGENT_ID': agent_id},
                         labels=self._labels(
                             session_id,
                             chat_id,