feat: add job folder view for grouped batch outputs in media assets

- Add folder view to display all outputs from a single batch job
  - Show output count badge on assets with multiple batch outputs
  - Add job ID display and copy functionality in folder view header
  - Display execution time for batch jobs
  - Implement download functionality for output assets only
  - Add inspect action to asset more menu
  - Extract prompt ID from asset IDs using new UUID utility
  - Add comprehensive tests for UUID extraction utilities

src/utils/uuidUtil.ts

@@ -0,0 +1,41 @@
+/**
+ * UUID utility functions
+ */
+
+/**
+ * Regular expression for matching UUID v4 format
+ * Format: 8-4-4-4-12 (e.g., 98b0b007-7d78-4e3f-b7a8-0f483b9cf2d3)
+ */
+const UUID_REGEX =
+  /^([a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12})/i
+
+/**
+ * Extract UUID from the beginning of a string
+ * @param str - The string to extract UUID from
+ * @returns The extracted UUID or null if not found
+ */
+export function extractUuidFromString(str: string): string | null {
+  const match = str.match(UUID_REGEX)
+  return match ? match[1] : null
+}
+
+/**
+ * Check if a string is a valid UUID v4
+ * @param str - The string to check
+ * @returns true if the string is a valid UUID v4
+ */
+export function isValidUuid(str: string): boolean {
+  const fullUuidRegex =
+    /^[a-f0-9]{8}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{4}-[a-f0-9]{12}$/i
+  return fullUuidRegex.test(str)
+}
+
+/**
+ * Extract prompt ID from asset ID
+ * Asset ID format: "promptId-nodeId-filename"
+ * @param assetId - The asset ID string
+ * @returns The extracted prompt ID (UUID) or null
+ */
+export function extractPromptIdFromAssetId(assetId: string): string | null {
+  return extractUuidFromString(assetId)
+}