fix(sandbox): add sandbox delete/stop/get passthrough config

[Sodawyx]

add sandbox delete/stop/get passthrough configurations

Co-developed-by: Aone Copilot noreply@alibaba-inc.com

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[Copilot]

Pull request overview

This PR adds config (Config object) passthrough support to the sandbox delete, stop, and get operations in the high-level Sandbox API. Previously these methods ignored any user-provided config object, making them inconsistent with methods like create() that already supported config passthrough.

Changes:

• Sandbox.stop_by_id, Sandbox.stop_by_id_async, Sandbox.delete_by_id, and Sandbox.delete_by_id_async class methods now accept an optional config parameter and forward it to the underlying API client
• Instance methods stop(), stop_async(), delete(), delete_async(), get(), and get_async() now forward self._config when calling their underlying class methods or connect()/connect_async(); create() and create_async() now also pass config to create_sandbox/create_sandbox_async
• New TestSandboxConfigPassthrough test class added to verify config is properly forwarded for all affected operations

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
agentrun/sandbox/sandbox.py	Adds config param to stop_by_id* and delete_by_id* class methods; passes self._config through all relevant instance methods
agentrun/sandbox/__sandbox_async_template.py	Mirrors sandbox.py changes for the async template (source for codegen)
tests/unittests/sandbox/test_sandbox.py	New TestSandboxConfigPassthrough class with 12 tests covering config passthrough for stop, delete, get, and create operations, both sync and async

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