feat(smoke): 添加个性化戒烟计划生成功能 (Issue #46)

- 新增 Model 层: SmokeQuitPlan, SmokeQuitPlanDay 结构体
- 新增 Service 层: GenerateQuitPlan, GetActivePlan, GetPlanDays, ResetPlan
- 新增 Handler 层: POST /generate, GET /, GET /days, POST /reset
- 集成 AI 生成 30 天个性化戒烟减量方案
- 支持重置计划功能

cmd/api/main.go

@@ -74,6 +74,8 @@ func main() {
 		&smokemodel.SmokeAINextSmoke{},
 		&smokemodel.SmokeMotivationQuote{},
 		&smokemodel.SmokeShare{},
+		&smokemodel.SmokeQuitPlan{},
+		&smokemodel.SmokeQuitPlanDay{},
 		&marketingmodel.MarketingCategory{},
 		&marketingmodel.MarketingTemplate{},
 		&marketingmodel.MarketingDownload{},
@@ -105,7 +107,9 @@ func main() {
 	smokeNextService := smokeservice.NewSmokeNextService(database.DB)
 	smokeAINextService := smokeservice.NewSmokeAINextSmokeService(database.DB, config.AppConfig.AI)
 	smokeShareService := smokeservice.NewSmokeShareService(database.DB)
+	smokeQuitPlanService := smokeservice.NewSmokeQuitPlanService(database.DB, config.AppConfig.AI)
 	smokeHandler := smokehandler.NewSmokeHandler(smokeLogService, smokeAIAdviceService, smokeProfileService, smokeNextService, smokeAINextService, smokeShareService)
+	quitPlanHandler := smokehandler.NewQuitPlanHandler(smokeQuitPlanService)
 
 	redeemCodeService := membershipservice.NewRedeemCodeService(database.DB, config.AppConfig.Admin.Token)
 	redeemCodeHandler := membershiphandler.NewRedeemCodeHandler(redeemCodeService)
@@ -169,6 +173,7 @@ func main() {
 		authHandler,
 		videoHandler,
 		smokeHandler,
+		quitPlanHandler,
 		redeemCodeHandler,
 		uploadHandler,
 		oaOAuthHandler,