feat(billing): enhance task billing process with video input detection and updated pricing logic

- Added `EstimateBilling` function to check for video input in request metadata and return corresponding discount ratios.
- Updated `ModelPriceHelperPerCall` to incorporate new pricing logic based on model ratios and video input.
- Enhanced task billing logs to include model ratio information and adjusted calculations for actual quota based on additional multipliers.
- Introduced `renderTaskBillingProcess` to improve rendering of task billing information in the UI.

web/src/helpers/render.jsx

@@ -1620,6 +1620,18 @@ function renderPriceSimpleCore({
   return result;
 }
 
+export function renderTaskBillingProcess(other, content) {
+  if (other?.task_id != null) {
+    return renderBillingArticle(
+      [content].filter(Boolean),
+      { showReferenceNote: false },
+    );
+  }
+  return renderBillingArticle([
+    buildBillingText('任务预扣费（将在任务完成后按实际token重算）'),
+  ]);
+}
+
 export function renderModelPrice(
   inputTokens,
   completionTokens,