feat(BE-119,135): add seeding and API documentation

- Implement project data seeding logic
- Add API documentation using Hoppscotch

internal/database/seed/seeder.go

@@ -92,6 +92,9 @@ func Run(db *gorm.DB) error {
 		if err := seedTransferStock(tx, adminID); err != nil {
 			return err
 		}
+		if err := seedChickin(tx, adminID); err != nil {
+			return err
+		}
 
 		fmt.Println("✅ Master data seeding completed")
 		return nil
@@ -981,6 +984,7 @@ func seedProductWarehouse(tx *gorm.DB, createdBy uint) error {
 		{ProductID: 1, WarehouseID: 1, Quantity: 100},
 		{ProductID: 2, WarehouseID: 2, Quantity: 200},
 		{ProductID: 2, WarehouseID: 1, Quantity: 300},
+		{ProductID: 1, WarehouseID: 3, Quantity: 5000},
 	}
 
 	for _, seed := range seeds {
@@ -1005,8 +1009,7 @@ func seedProductWarehouse(tx *gorm.DB, createdBy uint) error {
 }
 
 func seedTransferStock(tx *gorm.DB, createdBy uint) error {
-	// Seeder Transfer Stock
-	// 1. Insert StockTransfer (header)
+
 	transfer := entity.StockTransfer{
 		FromWarehouseId: 1,
 		ToWarehouseId:   2,
@@ -1019,7 +1022,6 @@ func seedTransferStock(tx *gorm.DB, createdBy uint) error {
 		return err
 	}
 
-	// 2. Insert StockTransferDetail (detail)
 	details := []entity.StockTransferDetail{
 		{
 			StockTransferId: transfer.Id,
@@ -1038,7 +1040,6 @@ func seedTransferStock(tx *gorm.DB, createdBy uint) error {
 		}
 	}
 
-	// 3. Insert StockTransferDelivery (delivery)
 	deliveries := []entity.StockTransferDelivery{
 		{
 			StockTransferId:   transfer.Id,
@@ -1082,6 +1083,75 @@ func seedTransferStock(tx *gorm.DB, createdBy uint) error {
 	return nil
 }
 
+func seedChickin(tx *gorm.DB, createdBy uint) error {
+	seeds := []struct {
+		ProjectFlockKandangId uint
+		ChickInDate           string
+		Quantity              float64
+		Note                  string
+	}{
+		{ProjectFlockKandangId: 1, ChickInDate: "2025-10-20", Quantity: 100, Note: "Seeder chickin 1"},
+		{ProjectFlockKandangId: 2, ChickInDate: "2025-10-21", Quantity: 200, Note: "Seeder chickin 2"},
+	}
+
+	for _, seed := range seeds {
+		chickinDate, err := time.Parse("2006-01-02", seed.ChickInDate)
+		if err != nil {
+			return err
+		}
+
+		// Insert ProjectChickin jika belum ada
+		var chickin entity.ProjectChickin
+		err = tx.Where("project_flock_kandang_id = ? AND chick_in_date = ?", seed.ProjectFlockKandangId, chickinDate).
+			First(&chickin).Error
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			chickin = entity.ProjectChickin{
+				ProjectFlockKandangId: seed.ProjectFlockKandangId,
+				ChickInDate:           chickinDate,
+				Quantity:              seed.Quantity,
+				Note:                  seed.Note,
+				CreatedBy:             createdBy,
+			}
+			if err := tx.Create(&chickin).Error; err != nil {
+				return err
+			}
+		} else if err != nil {
+			return err
+		}
+
+		// Update/Insert ProjectFlockPopulation
+		var population entity.ProjectFlockPopulation
+		err = tx.Where("project_flock_kandang_id = ?", seed.ProjectFlockKandangId).First(&population).Error
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			population = entity.ProjectFlockPopulation{
+				ProjectFlockKandangId: seed.ProjectFlockKandangId,
+				InitialQuantity:       seed.Quantity,
+				CurrentQuantity:       seed.Quantity,
+				ReservedQuantity:      0,
+				CreatedBy:             createdBy,
+			}
+			if err := tx.Create(&population).Error; err != nil {
+				return err
+			}
+		} else if err != nil {
+			return err
+		} else {
+			// Update population quantities
+			if err := tx.Model(&entity.ProjectFlockPopulation{}).
+				Where("id = ?", population.Id).
+				Updates(map[string]any{
+					"initial_quantity":  population.InitialQuantity + seed.Quantity,
+					"current_quantity":  population.CurrentQuantity + seed.Quantity,
+					"reserved_quantity": 0,
+				}).Error; err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}
+
 func ptr[T any](v T) *T {
 	return &v
 }