Refactor site configuration and color scheme management

- Replaced static config with dynamic site info context.
- Updated color scheme handling in various components to use site info.
- Removed deprecated config file and integrated site info fetching.
- Enhanced user preference page to allow color scheme selection.
- Adjusted blog and console components to reflect new site info structure.
- Improved error handling and fallback mechanisms for site info retrieval.

internal/model/json.go

@@ -1 +1,84 @@
 package model
+
+import (
+	"database/sql/driver"
+	"encoding/json"
+	"fmt"
+
+	"gorm.io/gorm"
+	"gorm.io/gorm/schema"
+)
+
+// JSONMap 是一个通用的 JSON 类型（map[string]any）
+type JSONMap map[string]any
+
+func (JSONMap) GormDataType() string {
+	return "json"
+}
+
+func (JSONMap) GormDBDataType(db *gorm.DB, _ *schema.Field) string {
+	switch db.Dialector.Name() {
+	case "mysql":
+		return "JSON"
+	case "postgres":
+		return "JSONB"
+	default: // sqlite 等
+		return "TEXT"
+	}
+}
+
+// Value 实现 driver.Valuer，用于写入数据库
+func (j JSONMap) Value() (driver.Value, error) {
+	if j == nil {
+		return nil, nil
+	}
+	b, err := json.Marshal(map[string]any(j))
+	if err != nil {
+		return nil, err
+	}
+	return string(b), nil
+}
+
+// Scan 实现 sql.Scanner，用于从数据库读取并反序列化
+func (j *JSONMap) Scan(src any) error {
+	if src == nil {
+		*j = nil
+		return nil
+	}
+	var data []byte
+	switch v := src.(type) {
+	case string:
+		data = []byte(v)
+	case []byte:
+		data = v
+	default:
+		return fmt.Errorf("cannot scan JSONMap from %T", src)
+	}
+	if len(data) == 0 {
+		*j = nil
+		return nil
+	}
+	var m map[string]any
+	if err := json.Unmarshal(data, &m); err != nil {
+		return err
+	}
+	*j = JSONMap(m)
+	return nil
+}
+
+func (j JSONMap) MarshalJSON() ([]byte, error) {
+	return json.Marshal(map[string]any(j))
+}
+
+func (j *JSONMap) UnmarshalJSON(b []byte) error {
+	if len(b) == 0 || string(b) == "null" {
+		*j = nil
+		return nil
+	}
+	var m map[string]any
+	if err := json.Unmarshal(b, &m); err != nil {
+		return err
+	}
+	*j = JSONMap(m)
+	return nil
+}

internal/model/kv.go

@@ -1,5 +1,6 @@
-package main
-
-func main() {
+package model
 
+type KV struct {
+	Key   string `gorm:"primaryKey;type:varchar(64);not null;comment:键"`
+	Value JSONMap
 }

internal/model/user.go

@@ -1,41 +1,43 @@
 package model
 
 import (
-  "github.com/snowykami/neo-blog/internal/dto"
-  "gorm.io/gorm"
+	"github.com/snowykami/neo-blog/internal/dto"
+	"gorm.io/gorm"
 )
 
 type User struct {
-  gorm.Model
-  Username      string `gorm:"uniqueIndex;not null"` // 用户名，唯一
-  Nickname      string `gorm:"default:''"`           // 昵称
-  AvatarUrl     string
-  BackgroundUrl string
-  Email         string `gorm:"uniqueIndex"`
-  Gender        string `gorm:"default:''"`
-  Role          string `gorm:"default:'user'"` // user editor admin
-  Language      string `gorm:"default:'en'"`
-  Password      string // 密码，存储加密后的值
+	gorm.Model
+	Username       string `gorm:"uniqueIndex;not null"` // 用户名，唯一
+	Nickname       string `gorm:"default:''"`           // 昵称
+	AvatarUrl      string
+	BackgroundUrl  string
+	PreferredColor string `gorm:"default:'global'"` // 主题色
+	Email          string `gorm:"uniqueIndex"`
+	Gender         string `gorm:"default:''"`
+	Role           string `gorm:"default:'user'"` // user editor admin
+	Language       string `gorm:"default:'en'"`
+	Password       string // 密码，存储加密后的值
 }
 
 type UserOpenID struct {
-  gorm.Model
-  UserID uint   `gorm:"index"`
-  User   User   `gorm:"foreignKey:UserID;references:ID"`
-  Issuer string `gorm:"index"` // OIDC Issuer
-  Sub    string `gorm:"index"` // OIDC Sub openid
+	gorm.Model
+	UserID uint   `gorm:"index"`
+	User   User   `gorm:"foreignKey:UserID;references:ID"`
+	Issuer string `gorm:"index"` // OIDC Issuer
+	Sub    string `gorm:"index"` // OIDC Sub openid
 }
 
 func (user *User) ToDto() dto.UserDto {
-  return dto.UserDto{
-    ID:            user.ID,
-    Username:      user.Username,
-    Nickname:      user.Nickname,
-    AvatarUrl:     user.AvatarUrl,
-    BackgroundUrl: user.BackgroundUrl,
-    Email:         user.Email,
-    Gender:        user.Gender,
-    Role:          user.Role,
-    Language:      user.Language,
-  }
+	return dto.UserDto{
+		ID:             user.ID,
+		Username:       user.Username,
+		Nickname:       user.Nickname,
+		AvatarUrl:      user.AvatarUrl,
+		BackgroundUrl:  user.BackgroundUrl,
+		PreferredColor: user.PreferredColor,
+		Email:          user.Email,
+		Gender:         user.Gender,
+		Role:           user.Role,
+		Language:       user.Language,
+	}
 }