fix: return api key delete response

[mayankbohradev]

What

• Adds a typed delete response for API key deletion.
• Returns the documented delete response from sync and async remove methods.

Why

• The Delete API key endpoint returns an object with object, id, and deleted fields, but the SDK previously discarded the response body and returned None.

Testing

• pytest --cov=resend --cov-report=xml --doctest-modules tests/api_keys_test.py tests/api_keys_async_test.py -q
• black --check resend/api_keys/_api_keys.py tests/api_keys_test.py tests/api_keys_async_test.py
• isort --check-only resend/api_keys/_api_keys.py tests/api_keys_test.py tests/api_keys_async_test.py
• mypy --install-types --non-interactive --ignore-missing-imports resend/ examples/ tests/
• pytest --cov=resend --cov-report=xml --doctest-modules tests -q

---

Summary by cubic

Return the documented API key delete response instead of None, so callers can confirm deletion. Adds ApiKeys.DeleteApiKeyResponse and updates ApiKeys.remove/remove_async in resend.

• Bug Fixes
  • ApiKeys.remove and ApiKeys.remove_async now return ApiKeys.DeleteApiKeyResponse with object, id, and deleted.
  • Switch to perform_with_content to parse the delete response; tests updated to assert returned fields.

^{Written for commit 5cdc608. Summary will update on new commits.}

[mayankbohradev]

@cubic-dev-ai review this PR

[cubic-dev-ai]

@cubic-dev-ai review this PR

@mayankbohradev I can’t start this review because this PR was opened by an external contributor in a public repository. Ask an installation member or outside collaborator to comment @cubic review this.

[codecov-commenter]

Codecov Report

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✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.64%. Comparing base (7f1acd0) to head (5cdc608).
⚠️ Report is 181 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #231       +/-   ##
===========================================
+ Coverage   82.66%   95.64%   +12.97%     
===========================================
  Files           4       58       +54     
  Lines          75     3100     +3025     
===========================================
+ Hits           62     2965     +2903     
- Misses         13      135      +122     

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[drish]

thanks for the contribution @mayankbohradev