更新小程序API路径，统一为/api/miniprogram前缀，确保与后端一致性。同时，调整微信支付相关配置，增强系统的灵活性和可维护性。

soul-api/internal/model/reading_progress.go

@@ -0,0 +1,20 @@
+package model
+
+import "time"
+
+// ReadingProgress 对应表 reading_progress
+type ReadingProgress struct {
+	ID          int        `gorm:"column:id;primaryKey;autoIncrement"`
+	UserID      string     `gorm:"column:user_id;size:50"`
+	SectionID   string     `gorm:"column:section_id;size:50"`
+	Progress    int        `gorm:"column:progress"`
+	Duration    int        `gorm:"column:duration"`
+	Status      string     `gorm:"column:status;size:20"`
+	CompletedAt *time.Time `gorm:"column:completed_at"`
+	FirstOpenAt *time.Time `gorm:"column:first_open_at"`
+	LastOpenAt  *time.Time `gorm:"column:last_open_at"`
+	CreatedAt   time.Time  `gorm:"column:created_at"`
+	UpdatedAt   time.Time  `gorm:"column:updated_at"`
+}
+
+func (ReadingProgress) TableName() string { return "reading_progress" }