add kaggle and colab

[echarles]

No description provided.

[Copilot]

Pull request overview

This PR adds first-class Kaggle and Google Colab support to Code Sandboxes by introducing provider-specific kernel clients and a Kaggle batch execution path, updating sandboxes to use these internal implementations, and expanding docs/tests accordingly.

Changes:

• Added KaggleKernelClient / ColabKernelClient (plus URL parsers) and a new KaggleKernelExecutor + KaggleExecutionResult for batch execution via the official Kaggle API.
• Updated Kaggle/Colab/Jupyter sandbox implementations and tests, including surfacing kernel_id in sandbox metadata.
• Added a variant-neutral “Jupyter-shaped reply” facade (execution_result_to_reply, CodeSandboxClient.execute/execute_interactive) and documented the new APIs.

Reviewed changes

Copilot reviewed 23 out of 23 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
tests/test_modal_colab_sandbox.py	Updates monkeypatching to target the in-repo Kaggle executor wiring.
tests/test_kaggle.py	Adds unit tests for Kaggle channels URL parsing and token resolution behavior.
tests/test_kaggle_execute.py	Adds unit tests for Kaggle batch execution, normalization helpers, and reply shaping.
tests/test_jupyter.py	Updates stubs to expose id to match new metadata expectations.
tests/test_colab.py	Adds unit tests for Colab channels URL parsing and header/param injection.
tests/test_client.py	Adds tests for new client facade behavior and execution-result-to-reply conversion.
README.md	Documents Kaggle + Colab usage patterns and links to full guides.
pyproject.toml	Moves Kaggle batch dependency to kaggle>=1.6 optional extra; keeps kernel client deps in base.
docs/docs/sandboxes/kaggle.mdx	New detailed Kaggle guide (auth modes, batch execution, accelerators, channels URL).
docs/docs/sandboxes/index.mdx	Updates sandbox index to reflect in-repo clients + links to new guides.
docs/docs/sandboxes/google-colab.mdx	New detailed Google Colab guide (proxy token, channels URL retrieval).
docs/docs/installation/index.mdx	Updates installation guidance (removes colab extra, clarifies requirements).
docs/docs/api-reference/index.mdx	Documents new client facade and new Kaggle/Colab exported APIs.
code_sandboxes/kaggle.py	Adds Kaggle interactive kernel client + channels URL parser.
code_sandboxes/kaggle_sandbox.py	Switches Kaggle sandbox to in-repo Kaggle client/executor; records kernel_id metadata.
code_sandboxes/kaggle_execute.py	Adds Kaggle batch executor + execution result normalization to Jupyter-like outputs.
code_sandboxes/jupyter_sandbox.py	Adds kernel_id to runtime metadata.
code_sandboxes/interfaces.py	Replaces dependency protocol inheritance with an internal ISandboxClient protocol.
code_sandboxes/colab.py	Adds Colab interactive kernel client + channels URL parser + proxy header/param handling.
code_sandboxes/colab_sandbox.py	Switches Colab sandbox to in-repo Colab client/parser; records kernel_id metadata.
code_sandboxes/client.py	Adds execution_result_to_reply and CodeSandboxClient.execute/execute_interactive facade methods.
code_sandboxes/version.py	Bumps package version to 1.0.0.
code_sandboxes/init.py	Exports new clients/executors/parsers and the new reply conversion helper.

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