refactoring the api endpoints to be separate files to reduce context usage

apps/server/src/routes/git/common.ts

@@ -0,0 +1,21 @@
+/**
+ * Common utilities for git routes
+ */
+
+import { createLogger } from "../../lib/logger.js";
+
+const logger = createLogger("Git");
+
+/**
+ * Get error message from error object
+ */
+export function getErrorMessage(error: unknown): string {
+  return error instanceof Error ? error.message : "Unknown error";
+}
+
+/**
+ * Log error details consistently
+ */
+export function logError(error: unknown, context: string): void {
+  logger.error(`❌ ${context}:`, error);
+}