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/wire/handler.go

@@ -1,10 +1,9 @@
-package wire
+package wire
 
 import (
 	"with_you/internal/config"
 	"with_you/internal/handler"
 	"with_you/internal/pkg/ws"
-	"with_you/internal/repository"
 	"with_you/internal/service"
 
 	"github.com/google/wire"
@@ -66,7 +65,7 @@ func ProvideUserHandler(
 
 func ProvideMessageHandler(
 	chatService service.ChatService,
-	messageService *service.MessageService,
+	messageService service.MessageService,
 	userService service.UserService,
 	groupService service.GroupService,
 	publisher ws.MessagePublisher,
@@ -102,11 +101,11 @@ func ProvideWSHandler(
 	publisher ws.MessagePublisher,
 	chatService service.ChatService,
 	groupService service.GroupService,
-	jwtService *service.JWTService,
+	jwtService service.JWTService,
 	callService service.CallService,
-	userRepo repository.UserRepository,
+	userService service.UserService,
 ) *handler.WSHandler {
-	return handler.NewWSHandler(publisher, chatService, groupService, jwtService, callService, userRepo)
+	return handler.NewWSHandler(publisher, chatService, groupService, jwtService, callService, userService)
 }
 
 // ProvideLiveKitHandler 提供 LiveKit 处理器
@@ -122,9 +121,9 @@ func ProvideLiveKitHandler(
 // ProvideAdminVerificationHandler 提供管理端身份认证处理器
 func ProvideAdminVerificationHandler(
 	adminVerificationService service.AdminVerificationService,
-	userRepo repository.UserRepository,
+	userService service.UserService,
 ) *handler.AdminVerificationHandler {
-	return handler.NewAdminVerificationHandler(adminVerificationService, userRepo)
+	return handler.NewAdminVerificationHandler(adminVerificationService, userService)
 }
 
 func ProvideSetupHandler(