RhythmOne Adapter: dedupe frameImp and interpretResponse flows

[patmmccann]

Motivation

• Remove remaining duplicated impression framing and response interpretation logic shared between the Marsmedia and RhythmOne adapters by centralizing common flows into a shared library to improve maintainability.

[github-actions]

Tread carefully! This PR adds 2 linter errors (possibly disabled through directives):

• libraries/rhythmoneMarsUtils/index.js (+2 errors)

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Validate media before invoking frameExt

buildImpressionList now calls frameExt before verifying that a bid produced a valid banner/video impression, which changes behavior for malformed bids that should be skipped. In the Marsmedia path, frameExt performs banner-size processing (getMinSize(processedSizes)) and can throw on invalid mediaTypes.banner.sizes shapes; previously frameExt was only reached after frameBanner/frameVideo succeeded, so these bids were dropped instead of crashing request building. This can cause the adapter request flow to fail for bad publisher size configs that were previously tolerated.

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[coveralls]

Pull Request Test Coverage Report for Build 22873766541

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
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• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 86 of 88 (97.73%) changed or added relevant lines in 3 files are covered.
• 46 unchanged lines in 2 files lost coverage.
• Overall coverage increased (+33.2%) to 96.331%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
libraries/rhythmoneMarsUtils/index.js	73	74	98.65%
modules/marsmediaBidAdapter.js	7	8	87.5%

Files with Coverage Reduction	New Missed Lines	%
src/adloader.js	9	76.92%
src/utils.js	37	90.51%

Totals
Change from base Build #3:	33.2%
Covered Lines:	217469
Relevant Lines:	225753

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💛 - Coveralls