feat: task pre consume modelPrice default use setting value

[feitianbubu]

任务预扣费默认取后台设置的请求预扣费额度

Summary by CodeRabbit

Release Notes

• Bug Fixes
  • Refined fallback pricing calculation for relay tasks to dynamically compute prices based on quota metrics instead of using fixed default values.

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[coderabbitai]

Walkthrough

A single line modification in the RelayTaskSubmit function changes the fallback default price calculation. When a model lacks a default price entry, the modelPrice is now computed from PreConsumedQuota divided by QuotaPerUnit instead of using a hard-coded value of 0.1.

Changes

Cohort / File(s)	Summary
Price Calculation Fallback relay/relay_task.go	Modified fallback default price logic in RelayTaskSubmit: replaced hard-coded 0.1 value with dynamic calculation using PreConsumedQuota ÷ QuotaPerUnit conversion

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

🐰 A tiny hop, a single line does change,
Where prices once were fixed at point-one's range,
Now quotas dance in ratios so keen,
The fairest pricing model ever seen!

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately describes the main change: updating the task pre-consume modelPrice default to use the setting value (PreConsumedQuota/QuotaPerUnit) instead of the hard-coded 0.1.
Docstring Coverage	✅ Passed	Docstring coverage is 100.00% which is sufficient. The required threshold is 80.00%.

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✨ Finishing touches

• 📝 Generate docstrings

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[coderabbitai]

Actionable comments posted: 0

Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (1)

relay/relay_task.go (1)

143-151: Update fallback model price consistently across codebase.

The new formula at line 147 computes modelPrice = 500 / 500000 = 0.001, which is 100x smaller than the previous 0.1. However, relay/helper/price.go line 151 still uses the hardcoded fallback value of 0.1 in an identical scenario—both are fallback logic for models without explicit pricing. This inconsistency could cause different request types to receive different default pricing.

Either update relay/helper/price.go to use the same formula, or clarify if the divergence is intentional.