MAESTRO: Install recharts and date-fns dependencies for Usage Dashboard

Added recharts v3.6.0 for charting components and date-fns v4.1.0 for
date formatting and manipulation. These are required for the upcoming
Usage Dashboard modal with Recharts visualizations.

package.json

@@ -235,6 +235,7 @@
     "canvas-confetti": "^1.9.4",
     "chokidar": "^3.6.0",
     "commander": "^14.0.2",
+    "date-fns": "^4.1.0",
     "diff": "^8.0.2",
     "dompurify": "^3.3.0",
     "electron-store": "^8.1.0",
@@ -249,6 +250,7 @@
     "react-diff-view": "^3.3.2",
     "react-markdown": "^10.1.0",
     "react-syntax-highlighter": "^16.1.0",
+    "recharts": "^3.6.0",
     "rehype-raw": "^7.0.0",
     "rehype-slug": "^6.0.0",
     "remark-frontmatter": "^5.0.0",