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/operation_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 OperationLogRepository interface {
 	CreateOperationLog(ctx context.Context, log *model.OperationLog) error
 	BatchCreateOperationLogs(ctx context.Context, logs []*model.OperationLog) error
-	GetOperationLogs(ctx context.Context, filters dto.LogFilter, page, pageSize int) ([]*model.OperationLog, int64, error)
+	GetOperationLogs(ctx context.Context, filters query.LogFilter, page, pageSize int) ([]*model.OperationLog, int64, error)
 	GetOperationLogsByUser(ctx context.Context, userID string, page, pageSize int) ([]*model.OperationLog, int64, error)
 	GetOperationLogsByTimeRange(ctx context.Context, startTime, endTime string, page, pageSize int) ([]*model.OperationLog, int64, error)
 	DeleteOldLogs(ctx context.Context, beforeDate string) error
@@ -44,7 +44,7 @@ func (r *operationLogRepository) BatchCreateOperationLogs(ctx context.Context, l
 }
 
 // GetOperationLogs 获取操作日志列表（分页）
-func (r *operationLogRepository) GetOperationLogs(ctx context.Context, filters dto.LogFilter, page, pageSize int) ([]*model.OperationLog, int64, error) {
+func (r *operationLogRepository) GetOperationLogs(ctx context.Context, filters query.LogFilter, page, pageSize int) ([]*model.OperationLog, int64, error) {
 	query := r.db.WithContext(ctx).Model(&model.OperationLog{})
 
 	if filters.UserID != "" {
@@ -88,12 +88,12 @@ func (r *operationLogRepository) GetOperationLogs(ctx context.Context, filters d
 
 // GetOperationLogsByUser 获取指定用户的操作日志
 func (r *operationLogRepository) GetOperationLogsByUser(ctx context.Context, userID string, page, pageSize int) ([]*model.OperationLog, int64, error) {
-	return r.GetOperationLogs(ctx, dto.LogFilter{UserID: userID}, page, pageSize)
+	return r.GetOperationLogs(ctx, query.LogFilter{UserID: userID}, page, pageSize)
 }
 
 // GetOperationLogsByTimeRange 按时间范围获取操作日志
 func (r *operationLogRepository) GetOperationLogsByTimeRange(ctx context.Context, startTime, endTime string, page, pageSize int) ([]*model.OperationLog, int64, error) {
-	return r.GetOperationLogs(ctx, dto.LogFilter{StartTime: startTime, EndTime: endTime}, page, pageSize)
+	return r.GetOperationLogs(ctx, query.LogFilter{StartTime: startTime, EndTime: endTime}, page, pageSize)
 }
 
 // DeleteOldLogs 删除旧的操作日志（用于定时清理）