feat(BE-34): extend DB schema and update master data APIs [partial]

✅ DB Schema: product_warehouse entity and migration
✅ Master Data: added filter params to getall APIs
🚧 Pending: stock_logs implementation and adjustment APIs

internal/entities/adjustment.go

@@ -0,0 +1,18 @@
+package entities
+
+import (
+	"time"
+
+	"gorm.io/gorm"
+)
+
+type Adjustment struct {
+	Id        uint           `gorm:"primaryKey"`
+	Name      string         `gorm:"not null;uniqueIndex:idx_name,where:deleted_at IS NULL"`
+	CreatedBy uint           `gorm:"not null"`
+	CreatedAt time.Time      `gorm:"autoCreateTime"`
+	UpdatedAt time.Time      `gorm:"autoUpdateTime"`
+	DeletedAt gorm.DeletedAt `gorm:"index" json:"-"`
+
+	CreatedUser User `gorm:"foreignKey:CreatedBy;references:Id"`
+}