refact: google colab

[echarles]

No description provided.

[Copilot]

Pull request overview

This PR refactors the Google Colab integration by introducing google_colab as the canonical variant name, adding dedicated google_colab client/sandbox modules, and updating the CLI/tests/examples/docs accordingly while aiming to preserve backwards compatibility with the previous colab naming.

Changes:

• Add new code_sandboxes.google_colab / code_sandboxes.google_colab_sandbox modules and update public exports.
• Treat google_colab as the canonical variant while mapping legacy CLI/API inputs (colab, google-colab) to google_colab.
• Update documentation, examples, and tests to use the new names and variant strings.

Reviewed changes

Copilot reviewed 28 out of 28 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
tests/test_models.py	Adds assertion for the new GOOGLE_COLAB enum value.
tests/test_modal_google_colab_sandbox.py	Updates sandbox import/instantiation to GoogleColabSandbox.
tests/test_google_colab.py	Updates imports and symbol names to google_colab equivalents.
tests/test_factory.py	Updates factory expectations and uses google_colab in forwarded-kwargs test.
tests/test_cli_repl.py	Switches CLI variant usage to google-colab alias and expects normalized variant.
README.md	Updates canonical variant list and Colab-related usage examples/names.
pyproject.toml	Adds google-colab optional dependency extra placeholder.
examples/repl/Makefile	Renames colab target to google-colab.
examples/repl/google_colab_sandbox_example.py	Uses variant="google_colab".
examples/README.md	Updates supported variants, commands, and notes to google-colab.
examples/exec/Makefile	Renames colab target to google-colab.
examples/exec/google_colab_sandbox_example.py	Uses variant="google_colab".
docs/docs/sandboxes/index.mdx	Updates canonical variant list and docs table label to google_colab + alias note.
docs/docs/sandboxes/google-colab.mdx	Renames API references to GoogleColabKernelClient and google_colab variant string.
docs/docs/index.mdx	Updates variant table to google-colab.
docs/docs/examples/index.mdx	Updates Colab example source link and make target.
docs/docs/comparison/index.mdx	Updates supported variant list to google-colab.
docs/docs/cli/index.mdx	Updates CLI variant list/description to google-colab.
docs/docs/api-reference/index.mdx	Updates API reference variant strings and exported symbol names.
code_sandboxes/models.py	Adds SandboxVariant.GOOGLE_COLAB = "google_colab".
code_sandboxes/google_colab.py	New Colab kernel client module with new names + backward-compatible aliases.
code_sandboxes/google_colab_sandbox.py	New Colab sandbox module for google_colab variant.
code_sandboxes/colab.py	Converts old module into a backward-compatible re-export shim.
code_sandboxes/colab_sandbox.py	Converts old module into a backward-compatible re-export shim.
code_sandboxes/cli.py	Adds/normalizes google_colab and google-colab (and maps legacy inputs).
code_sandboxes/base.py	Normalizes legacy colab variants to google_colab and creates the new sandbox class.
code_sandboxes/version.py	Bumps package version to 1.0.3.
code_sandboxes/init.py	Updates public exports to include GoogleColab* symbols.

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[echarles]

LGTM