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/ajv/dist/vocabularies/metadata.js

@@ -0,0 +1,18 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.contentVocabulary = exports.metadataVocabulary = void 0;
+exports.metadataVocabulary = [
+    "title",
+    "description",
+    "default",
+    "deprecated",
+    "readOnly",
+    "writeOnly",
+    "examples",
+];
+exports.contentVocabulary = [
+    "contentMediaType",
+    "contentEncoding",
+    "contentSchema",
+];
+//# sourceMappingURL=metadata.js.map