chore: clean .gitignore cache

backend/internal/models/setting.go

@@ -1,16 +0,0 @@
-package models
-
-import (
-	"time"
-)
-
-// Setting stores global application configuration as key-value pairs.
-// Used for system-wide preferences, feature flags, and runtime config.
-type Setting struct {
-	ID        uint      `json:"id" gorm:"primaryKey"`
-	Key       string    `json:"key" gorm:"uniqueIndex"`
-	Value     string    `json:"value" gorm:"type:text"`
-	Type      string    `json:"type" gorm:"index"`     // "string", "int", "bool", "json"
-	Category  string    `json:"category" gorm:"index"` // "general", "security", "caddy", "smtp", etc.
-	UpdatedAt time.Time `json:"updated_at"`
-}