fix: silently skip repos without digger config for org-wide installations (#2488)

Author: joshuamkite-nfb

backend/controllers/github_pull_request.go

@@ -9,6 +9,7 @@ import (
 	"runtime/debug"
 	"slices"
 	"strconv"
+	"strings"
 
 	"github.com/diggerhq/digger/backend/ci_backends"
 	config2 "github.com/diggerhq/digger/backend/config"
@@ -136,7 +137,17 @@ func handlePullRequestEvent(gh utils.GithubClientProvider, payload *github.PullR
 			)
 			return nil
 		}
-		
+
+		// Silently skip repos without digger.yml - this is expected for org-wide installations
+		if strings.Contains(err.Error(), "could not find digger.yml") ||
+			strings.Contains(err.Error(), "could not find digger.yaml") {
+			slog.Info("No Digger config found, skipping repo",
+				"prNumber", prNumber,
+				"repoFullName", repoFullName,
+			)
+			return nil
+		}
+
 		slog.Error("Error getting Digger config for PR",
 			"prNumber", prNumber,
 			"repoFullName", repoFullName,
@@ -504,7 +515,7 @@ func handlePullRequestEvent(gh utils.GithubClientProvider, payload *github.PullR
 		commentReporterManager.UpdateComment(fmt.Sprintf(":x: Could not retrieve created batch: %v", err))
 		return fmt.Errorf("error getting digger batch")
 	}
-	
+
 	if config.CommentRenderMode == digger_config.CommentRenderModeGroupByModule {
 		slog.Info("Using GroupByModule render mode for comments", "prNumber", prNumber)