feat: add billing expression system documentation and enhance tiered billing logic

- Introduced a new rule for the Billing Expression System, emphasizing the importance of reading `pkg/billingexpr/expr.md` for dynamic billing. - Updated the billing expression logic to support new variables and improved handling of image and audio tokens. - Enhanced the tiered billing functionality with versioning support for expressions and refined quota calculations. - Added tests to validate the new billing expression features and ensure correctness in pricing calculations.
2026-03-17 15:29:43 +08:00
parent 5b03b39db2
commit c5405b2a12
27 changed files with 894 additions and 578 deletions
@@ -260,6 +260,7 @@ type InputTokenDetails struct {
 type OutputTokenDetails struct {
 	TextTokens      int `json:"text_tokens"`
 	AudioTokens     int `json:"audio_tokens"`
+	ImageTokens     int `json:"image_tokens"`
 	ReasoningTokens int `json:"reasoning_tokens"`
 }