feat: establish teaching feedback mini program

Connect student profiles, defaults, and feedback records to the Rust API. Configure the WeChat AppID, custom tab bar, and local development workflow for version 0.1.0.

utils/time.ts

@@ -0,0 +1,15 @@
+export function addMinutes(time: string, minutes: number): string {
+  const [hours, mins] = time.split(':').map(Number)
+  const total = (hours * 60 + mins + minutes) % (24 * 60)
+  const nextHours = Math.floor(total / 60)
+  const nextMinutes = total % 60
+
+  return `${String(nextHours).padStart(2, '0')}:${String(nextMinutes).padStart(2, '0')}`
+}
+
+export function formatUpdatedAt(timestamp: number): string {
+  const date = new Date(timestamp)
+  const hours = String(date.getHours()).padStart(2, '0')
+  const minutes = String(date.getMinutes()).padStart(2, '0')
+  return `${hours}:${minutes}`
+}