Persist live status and migrate legacy live data

- Add user_live_status to store hi score, hi combo count, and clear count per chart
- Expand user_live_goal to persist achieved live_goal_reward_id entries instead of only coarse goal types
- Update live reward handling to refresh live status and sync newly achieved live goals on every clear
- Return live status and achieved goal ids from stored user data in /api/live/status
- Aggregate profile liveCnt from stored user_live_status instead of hardcoded values
- Load complete-rank thresholds from live info for goal evaluation
- Migrate legacy user_live_record data into user_live_status and backfill achievable live goals on startup

Signed-off-by: Sean Du <do4suki@gmail.com>

internal/model/user/userlivegoal.go

@@ -4,9 +4,11 @@ import "honoka-chan/internal/constant"
 
 type UserLiveGoal struct {
 	ID               int                   `xorm:"id pk autoincr"`
-	LiveDifficultyID int                   `xorm:"live_difficulty_id"`
-	UserID           int                   `xorm:"user_id"`
+	LiveDifficultyID int                   `xorm:"live_difficulty_id index"`
+	UserID           int                   `xorm:"user_id index"`
+	LiveGoalRewardID int                   `xorm:"live_goal_reward_id index"`
 	GoalType         constant.LiveGoalType `xorm:"goal_type"`
+	Rank             int                   `xorm:"rank"`
 	CompletedAt      int64                 `xorm:"completed_at"`
 }