feat: add new GetAWSIAMAuthConnector function

[sylr]

No description provided.

[coderabbitai]

Walkthrough

A new public helper function GetAWSIAMAuthConnector was added to extract AWS IAM connector construction logic, and ConnectionOptionsFromFlags was refactored to use this helper instead of inline configuration loading.

Changes

Cohort / File(s)	Summary
AWS IAM Connector Extraction bun/bunconnect/flags.go	Added exported GetAWSIAMAuthConnector function that initializes AWS SDK config and returns a connector factory. Refactored ConnectionOptionsFromFlags to use this new helper, replacing inline connector construction. Added import for AWS SDK package.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

🐰 A function extracted clean,
From flags to IAM's gleam,
Reusable, neat, and lean,
The AWS connector's dream! ✨

🚥 Pre-merge checks | ✅ 1 | ❌ 2

❌ Failed checks (1 warning, 1 inconclusive)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.
Description check	❓ Inconclusive	No pull request description was provided by the author, making it impossible to assess relevance to the changeset.	Add a pull request description explaining the purpose, rationale, and any relevant context for the AWS IAM connector refactoring.

✅ Passed checks (1 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the main change: extracting AWS IAM connector logic into a new reusable GetAWSIAMAuthConnector function.

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✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch feat/standalone-aws-iam-bun-connector

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[codecov]

Codecov Report

❌ Patch coverage is 0% with 24 lines in your changes missing coverage. Please review.
✅ Project coverage is 29.05%. Comparing base (79fe6a4) to head (02c85a9).
⚠️ Report is 17 commits behind head on main.

Files with missing lines	Patch %	Lines
bun/bunconnect/flags.go	0.00%	24 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #544      +/-   ##
==========================================
- Coverage   29.22%   29.05%   -0.18%     
==========================================
  Files         174      175       +1     
  Lines        6943     7139     +196     
==========================================
+ Hits         2029     2074      +45     
- Misses       4797     4946     +149     
- Partials      117      119       +2     

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