refactor(core): align with cordis spatiotemporal composability architecture

- Purify core micro-kernel by removing context hardcoded helpers and reverse dependencies
- Eliminate init() side effects in infra plugins with reversible lifecycle disposal
- Completely isolate plugins by removing cross-plugin imports and using core/contracts
- Introduce TaskService and RiskControlService contracts for unified cross-plugin APIs
- Regenerate Swagger documentation and update developer guide matrix
- Achieve 0 violations in check_cordis_architecture.sh and 100% test pass

backend/cmd/reset_passwd.go

@@ -16,9 +16,10 @@ import (
 	userdomain "Wavelet/plugins/domain/user"
 	"Wavelet/plugins/infra/database"
 
-	"Wavelet/plugins/domain/auth"
 	"github.com/spf13/cobra"
 	"gorm.io/gorm"
+
+	"Wavelet/plugins/domain/auth"
 )
 
 var (
@@ -49,7 +50,10 @@ var resetPasswdCmd = &cobra.Command{
 		ctx := context.Background()
 
 		// Ensure database is initialized
-		database.DB(ctx)
+		dbConn := database.DB(ctx)
+		if dbConn != nil {
+			userdomain.SetDBService(database.NewService(dbConn))
+		}
 
 		var username string
 		if usernameFlag != "" {