refactor: 训练模块整体迁入分包,减小主包体积

主包超出 2MB 上限无法上传发布版,把训练相关全部移到独立分包。

目录调整:
- pages/training/* → training/pages/*
- hooks/use{Metronome,VoiceCoach,TrainingSession,TrainingBgm}.ts
  → training/hooks/*
- static/training/* → training/static/*
- 主包 hooks/ 目录已清空,所有 use* 都被分包独占

引用路径更新:
- 分包内 hook import 用相对路径 ../hooks/xxx,不依赖 @/ alias
- 资源路径 /static/training/audio/click.mp3
  → /training/static/audio/click.mp3
- useMetronome 默认 clickSrc / useVoiceCoach VOICE_BASE
  / useTrainingBgm BGM_BASE 全部对齐新路径

pages.json:
- 主包 pages 移除 training/index 和 training/metronome
- subPackages 新增 root="training",含 pages/index 和 pages/metronome
- 跟现有 TUIKit / doctor 分包风格一致

调用方:
- components/dev-training-entry navigateTo URL 更新成
  /training/pages/metronome (此组件留在主包,主包跳分包是合法操作)

文档/工具同步:
- training/static/README.md 路径示例改为 training/static/...
- scripts/generate-voice.mjs VOICE_DIR 与提示输出对齐新路径

Git mv 检测到的全是 rename(R),历史完整保留。
分包总体 80K(pages 44K + hooks 20K + static 16K),主包瘦身明显。

Co-authored-by: Cursor <cursoragent@cursor.com>

TUICallKit-Vue3/training/hooks/useTrainingSession.ts

@@ -0,0 +1,133 @@
+import { ref, computed, onUnmounted } from 'vue'
+
+export type SessionPhase = 'idle' | 'training' | 'resting' | 'done'
+
+export interface TrainingSessionConfig {
+    sets: number
+    reps: number
+    restSec: number
+    beatsPerRep?: number
+    onRepComplete?: (currentRep: number, totalReps: number) => void
+    onSetComplete?: (currentSet: number, totalSets: number) => void
+    onEnterRest?: (restSec: number) => void
+    onExitRest?: () => void
+    onDone?: () => void
+    onCountdownTick?: (remainingSec: number) => void
+}
+
+export function useTrainingSession() {
+    const phase = ref<SessionPhase>('idle')
+    const currentSet = ref<number>(0)
+    const currentRep = ref<number>(0)
+    const restRemainingSec = ref<number>(0)
+    const beatCounter = ref<number>(0)
+
+    let config: TrainingSessionConfig | null = null
+    let restTimer: ReturnType<typeof setInterval> | null = null
+
+    const totalReps = computed(() => config?.reps ?? 0)
+    const totalSets = computed(() => config?.sets ?? 0)
+    const beatsPerRep = computed(() => config?.beatsPerRep ?? 2)
+
+    const isTraining = computed(() => phase.value === 'training')
+    const isResting = computed(() => phase.value === 'resting')
+    const isDone = computed(() => phase.value === 'done')
+
+    const start = (cfg: TrainingSessionConfig) => {
+        config = cfg
+        phase.value = 'training'
+        currentSet.value = 1
+        currentRep.value = 0
+        beatCounter.value = 0
+        restRemainingSec.value = 0
+    }
+
+    const onBeat = () => {
+        if (phase.value !== 'training' || !config) return
+
+        beatCounter.value++
+
+        if (beatCounter.value % beatsPerRep.value !== 0) return
+
+        currentRep.value++
+        config.onRepComplete?.(currentRep.value, totalReps.value)
+
+        if (currentRep.value >= totalReps.value) {
+            config.onSetComplete?.(currentSet.value, totalSets.value)
+
+            if (currentSet.value >= totalSets.value) {
+                phase.value = 'done'
+                config.onDone?.()
+                return
+            }
+
+            enterRest()
+        }
+    }
+
+    const enterRest = () => {
+        if (!config) return
+        phase.value = 'resting'
+        restRemainingSec.value = config.restSec
+        config.onEnterRest?.(config.restSec)
+
+        restTimer = setInterval(() => {
+            restRemainingSec.value--
+            config?.onCountdownTick?.(restRemainingSec.value)
+            if (restRemainingSec.value <= 0) {
+                exitRest()
+            }
+        }, 1000)
+    }
+
+    const exitRest = () => {
+        if (restTimer) {
+            clearInterval(restTimer)
+            restTimer = null
+        }
+        if (!config) return
+
+        currentSet.value++
+        currentRep.value = 0
+        beatCounter.value = 0
+        phase.value = 'training'
+        config.onExitRest?.()
+    }
+
+    const skipRest = () => {
+        if (phase.value !== 'resting') return
+        exitRest()
+    }
+
+    const stop = () => {
+        if (restTimer) {
+            clearInterval(restTimer)
+            restTimer = null
+        }
+        phase.value = 'idle'
+        currentSet.value = 0
+        currentRep.value = 0
+        beatCounter.value = 0
+        restRemainingSec.value = 0
+    }
+
+    onUnmounted(() => {
+        if (restTimer) clearInterval(restTimer)
+    })
+
+    return {
+        phase,
+        currentSet,
+        currentRep,
+        restRemainingSec,
+        totalReps,
+        totalSets,
+        isTraining,
+        isResting,
+        isDone,
+        start,
+        stop,
+        skipRest,
+        onBeat,
+    }
+}