Add settings page for managing forecasting API key and URL via UI

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

frontend/node_modules/is-module/component.json

@@ -0,0 +1,11 @@
+{
+  "name": "is-module",
+  "description": "check if a source string is an es6 module",
+  "keywords": ["es6", "module", "modules"],
+  "version": "1.0.0",
+  "license": "MIT",
+  "repo": "component/is-module",
+  "scripts": [
+    "index.js"
+  ]
+}