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/@standard-schema/utils/dist/index.js

@@ -0,0 +1,42 @@
+// src/getDotPath/getDotPath.ts
+function getDotPath(issue) {
+  if (issue.path?.length) {
+    let dotPath = "";
+    for (const item of issue.path) {
+      const key = typeof item === "object" ? item.key : item;
+      if (typeof key === "string" || typeof key === "number") {
+        if (dotPath) {
+          dotPath += `.${key}`;
+        } else {
+          dotPath += key;
+        }
+      } else {
+        return null;
+      }
+    }
+    return dotPath;
+  }
+  return null;
+}
+
+// src/SchemaError/SchemaError.ts
+var SchemaError = class extends Error {
+  /**
+   * The schema issues.
+   */
+  issues;
+  /**
+   * Creates a schema error with useful information.
+   *
+   * @param issues The schema issues.
+   */
+  constructor(issues) {
+    super(issues[0].message);
+    this.name = "SchemaError";
+    this.issues = issues;
+  }
+};
+export {
+  SchemaError,
+  getDotPath
+};