Add JSDoc documentation and file headers to all source files

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/module/cytoscapeMapTrace.js

@@ -1,3 +1,14 @@
+// The Lucia project.
+// Copyright 2023-2026 DSP, inc.  All rights reserved.
+// Authors:
+//   chiayin.kuo@dsp.im (chiayin), 2023/1/31
+//   imacat.yang@dsp.im (imacat), 2023/9/23
+//   cindy.chang@dsp.im (Cindy Chang), 2024/5/30
+/**
+ * @module cytoscapeMapTrace Cytoscape.js process map rendering for
+ *   individual trace visualization.
+ */
+
 import cytoscape from 'cytoscape';
 import dagre from 'cytoscape-dagre';
 import tippy from 'tippy.js';
@@ -6,19 +17,14 @@ import 'tippy.js/dist/tippy.css';
 cytoscape.use( dagre );
 
 /**
- * draw processmap for trace
- * @param {array}  nodes array of an object, it contains
- * data:{
- *  backgroundColor: string
- *  bordercolor: string
- *  height: number
- *  id: number
- *  label: string
- *  shape: string
- *  width: number
- * }
- * @param {array}  edges it's similar to nodes
- * @param {string} graphId graph Id
+ * Creates a Cytoscape.js instance for rendering a single trace's
+ * process map with left-to-right dagre layout and tooltips.
+ *
+ * @param {Array<Object>} nodes - Array of node data objects with
+ *   backgroundColor, bordercolor, height, id, label, shape, and width.
+ * @param {Array<Object>} edges - Array of edge data objects.
+ * @param {HTMLElement} graphId - The DOM container element for Cytoscape.
+ * @returns {cytoscape.Core} The configured Cytoscape instance.
  */
 export default function cytoscapeMapTrace(nodes, edges, graphId) {
   // create Cytoscape