fix: video content api Priority use url field

[feitianbubu]

openAI下载视频接口优先使用url字段

Summary by CodeRabbit

• Bug Fixes
  • Improved video URL resolution in the proxy service to ensure proper video selection when URLs are explicitly provided.

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[coderabbitai]

Walkthrough

The pull request modifies URL selection logic in the video proxy controller by introducing the lo utility library and changing the default channel handler to prefer an explicit task.Url when available, falling back to task.FailReason otherwise.

Changes

Cohort / File(s)	Summary
Video Proxy URL Selection controller/video_proxy.go	Added github.com/samber/lo import; replaced direct task.FailReason assignment with lo.Ternary conditional to prioritize task.Url when non-empty, defaulting to task.FailReason as fallback

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~5 minutes

Possibly related PRs

• feat: 视频下载和界面预览统一使用OAI标准接口 #2324 — Both PRs modify video URL selection logic in controller/video_proxy.go, altering how task.Url and task.FailReason are handled across channel cases.

Suggested reviewers

• creamlike1024

Poem

🐰 A URL must choose its own best way,
When the path is clear, no need to stray,
But if not found, a fallback's there—
Lo chooses wisely with careful care! 🔗

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

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.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly indicates the main change: prioritizing the URL field in the video content API, which aligns with the code change that uses lo.Ternary to prefer task.Url over task.FailReason.

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✨ Finishing touches

• 📝 Generate docstrings

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