Enhance smoking tracking API with new features and improvements

- Added a new API endpoint `GET /api/v1/smoke/home` to consolidate core modules for the home dashboard, reducing the need for multiple requests.
- Updated the `smoke` routes to include the new home endpoint and improved user profile management with the addition of a `quit_date` field.
- Enhanced the algorithm for calculating daily targets and next smoke suggestions, ensuring accurate future time handling and user-specific recommendations.
- Improved API documentation to reflect new endpoints, response formats, and detailed field descriptions for better clarity and usability.
- Refactored user authentication handling in various handlers to streamline the process and ensure consistent error responses.

internal/smoke/model/smoke_profile.go

@@ -71,6 +71,8 @@ type SmokeUserProfile struct {
 	WakeUpTime string `gorm:"column:wake_up_time;size:5;comment:起床时间(HH:MM)" json:"wake_up_time"`
 	SleepTime  string `gorm:"column:sleep_time;size:5;comment:入睡时间(HH:MM)" json:"sleep_time"`
 
+	QuitDate *time.Time `gorm:"column:quit_date;type:date;comment:目标戒烟日期" json:"quit_date,omitempty"`
+
 	OnboardingCompletedAt *time.Time `gorm:"column:onboarding_completed_at;comment:首次补全完成时间" json:"onboarding_completed_at,omitempty"`
 }