fix: revert insufficient capacity error name change

This commit reverts the error changes since this will break backward
compatibility with old orchestrators.

server/ai_http.go

@@ -119,7 +119,7 @@ func (h *lphttp) StartLiveVideoToVideo() http.Handler {
 
 		// Check if there is capacity for the request
 		if !orch.CheckAICapacity(pipeline, modelID) {
-			respondWithError(w, fmt.Sprintf("insufficient capacity for pipeline=%v modelID=%v", pipeline, modelID), http.StatusServiceUnavailable)
+			respondWithError(w, fmt.Sprintf("Insufficient capacity for pipeline=%v modelID=%v", pipeline, modelID), http.StatusServiceUnavailable)
 			return
 		}
 
@@ -480,7 +480,7 @@ func handleAIRequest(ctx context.Context, w http.ResponseWriter, r *http.Request
 
 	// Check if there is capacity for the request.
 	if !orch.CheckAICapacity(pipeline, modelID) {
-		respondWithError(w, fmt.Sprintf("insufficient capacity for pipeline=%v modelID=%v", pipeline, modelID), http.StatusServiceUnavailable)
+		respondWithError(w, fmt.Sprintf("Insufficient capacity for pipeline=%v modelID=%v", pipeline, modelID), http.StatusServiceUnavailable)
 		return
 	}
 

server/ai_process.go

@@ -1356,10 +1356,10 @@ func processImageToText(ctx context.Context, params aiRequestParams, req worker.
 	return txtResp, nil
 }
 
-// isRetryableError checks if the error is a transient error that can be retried.
-func isRetryableError(err error) bool {
+// isTransientError checks if the error is a transient error that can be retried.
+func isTransientError(err error) bool {
 	transientErrorMessages := []string{
-		"insufficient capacity",      // Caused by limitation in our current implementation.
+		"Insufficient capacity",      // Caused by limitation in our current implementation.
 		"invalid ticket senderNonce", // Caused by gateway nonce mismatch.
 		"TicketParams expired",       // Caused by ticket expiration.
 	}