Persist learn progress per user

shared/learn/config.ts

@@ -0,0 +1,38 @@
+export interface LessonProgress {
+  best: number
+  done: boolean
+}
+
+export type LearnProgress = Record<string, Record<string, LessonProgress>>
+
+export interface LearnConfig {
+  tts: boolean
+  radioLevel: number
+  voice: string
+  audioChallenge: boolean
+}
+
+export interface LearnState {
+  xp: number
+  progress: LearnProgress
+  config: LearnConfig
+}
+
+export const LEARN_CONFIG_DEFAULTS: LearnConfig = {
+  tts: false,
+  radioLevel: 4,
+  voice: '',
+  audioChallenge: false,
+}
+
+export function createDefaultLearnConfig(): LearnConfig {
+  return { ...LEARN_CONFIG_DEFAULTS }
+}
+
+export function createDefaultLearnState(): LearnState {
+  return {
+    xp: 0,
+    progress: {} as LearnProgress,
+    config: createDefaultLearnConfig(),
+  }
+}