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/es-toolkit/dist/compat/math/clamp.d.ts

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+//#region src/compat/math/clamp.d.ts
+/**
+ * Clamps a number within the specified bounds.
+ *
+ * @param number The number to clamp
+ * @param lower The lower bound
+ * @param upper The upper bound
+ * @returns Returns the clamped number
+ * @example
+ * clamp(3, 2, 4) // => 3
+ * clamp(0, 5, 10) // => 5
+ * clamp(15, 5, 10) // => 10
+ */
+declare function clamp(number: number, lower: number, upper: number): number;
+/**
+ * Clamps a number to an upper bound.
+ *
+ * @param number The number to clamp
+ * @param upper The upper bound
+ * @returns Returns the clamped number
+ * @example
+ * clamp(5, 3) // => 3
+ * clamp(2, 3) // => 2
+ */
+declare function clamp(number: number, upper: number): number;
+//#endregion
+export { clamp };