refactor(server): decouple services and improve architecture

- Introduce interfaces for all major services (JWT, PostAI, Comment, Message, Notification, QRCodeLogin, Upload, Vote, etc.) to support dependency inversion.
- Move query parameters from `internal/dto` to a new `internal/query` package to separate request payloads from data transfer objects.
- Refactor `internal/router` to use embedded `RouterDeps` for cleaner dependency management.
- Decouple handlers from repositories by injecting services instead of direct repository access, ensuring proper layering.
- Improve database initialization by moving it from `internal/model` to `internal/database`.
- Optimize message decryption by implementing a more efficient `BatchDecrypt` method in `MessageEncryptor` using a worker pool.
- Enhance error handling and security by implementing fail-fast checks for encryption key length during startup.
- Clean up unused code, including the `avatar` package and several unused DTOs.

internal/repository/data_change_log_repo.go

@@ -1,10 +1,10 @@
-package repository
+package repository
 
 import (
 	"context"
 
-	"with_you/internal/dto"
 	"with_you/internal/model"
+	"with_you/internal/query"
 
 	"gorm.io/gorm"
 )
@@ -13,7 +13,7 @@ import (
 type DataChangeLogRepository interface {
 	CreateDataChangeLog(ctx context.Context, log *model.DataChangeLog) error
 	BatchCreateDataChangeLogs(ctx context.Context, logs []*model.DataChangeLog) error
-	GetDataChangeLogs(ctx context.Context, filters dto.DataChangeFilter, page, pageSize int) ([]*model.DataChangeLog, int64, error)
+	GetDataChangeLogs(ctx context.Context, filters query.DataChangeFilter, page, pageSize int) ([]*model.DataChangeLog, int64, error)
 	GetDataChangeLogsByUser(ctx context.Context, userID string, page, pageSize int) ([]*model.DataChangeLog, int64, error)
 	GetDataChangeLogsByOperator(ctx context.Context, operatorID string, page, pageSize int) ([]*model.DataChangeLog, int64, error)
 	DeleteOldLogs(ctx context.Context, beforeDate string) error
@@ -44,7 +44,7 @@ func (r *dataChangeLogRepository) BatchCreateDataChangeLogs(ctx context.Context,
 }
 
 // GetDataChangeLogs 获取数据变更日志列表（分页）
-func (r *dataChangeLogRepository) GetDataChangeLogs(ctx context.Context, filters dto.DataChangeFilter, page, pageSize int) ([]*model.DataChangeLog, int64, error) {
+func (r *dataChangeLogRepository) GetDataChangeLogs(ctx context.Context, filters query.DataChangeFilter, page, pageSize int) ([]*model.DataChangeLog, int64, error) {
 	query := r.db.WithContext(ctx).Model(&model.DataChangeLog{})
 
 	if filters.UserID != "" {
@@ -88,12 +88,12 @@ func (r *dataChangeLogRepository) GetDataChangeLogs(ctx context.Context, filters
 
 // GetDataChangeLogsByUser 获取指定用户的数据变更日志
 func (r *dataChangeLogRepository) GetDataChangeLogsByUser(ctx context.Context, userID string, page, pageSize int) ([]*model.DataChangeLog, int64, error) {
-	return r.GetDataChangeLogs(ctx, dto.DataChangeFilter{UserID: userID}, page, pageSize)
+	return r.GetDataChangeLogs(ctx, query.DataChangeFilter{UserID: userID}, page, pageSize)
 }
 
 // GetDataChangeLogsByOperator 获取指定操作人的日志
 func (r *dataChangeLogRepository) GetDataChangeLogsByOperator(ctx context.Context, operatorID string, page, pageSize int) ([]*model.DataChangeLog, int64, error) {
-	return r.GetDataChangeLogs(ctx, dto.DataChangeFilter{OperatorID: operatorID}, page, pageSize)
+	return r.GetDataChangeLogs(ctx, query.DataChangeFilter{OperatorID: operatorID}, page, pageSize)
 }
 
 // DeleteOldLogs 删除旧的数据变更日志（用于定时清理）