feat: 添加用户关注功能

- 新增 Follow 表和 User.bio 字段 (Prisma schema)
- 创建 follow 模块 (action-service-repository)
- 新增 FollowButton/FollowStats/UserList 组件
- 用户页面显示 bio、粉丝/关注数、关注按钮
- 新增 /users/[username]/followers 和 following 页面
- 添加 en-US/zh-CN i18n 翻译

⚠️ 需要运行: prisma migrate dev --name add_follow_and_bio

src/modules/auth/auth-action-dto.ts

@@ -56,6 +56,7 @@ export type ActionOutputUserProfile = {
         username: string | null;
         displayUsername: string | null;
         image: string | null;
+        bio: string | null;
         createdAt: Date;
         updatedAt: Date;
     };

src/modules/auth/auth-repository-dto.ts

@@ -8,6 +8,7 @@ export type RepoOutputUserProfile = {
     username: string | null;
     displayUsername: string | null;
     image: string | null;
+    bio: string | null;
     createdAt: Date;
     updatedAt: Date;
 } | null;

src/modules/auth/auth-repository.ts

@@ -6,9 +6,6 @@ import {
     RepoOutputUserProfile
 } from "./auth-repository-dto";
 
-/**
- * Find user by username
- */
 export async function repoFindUserByUsername(dto: RepoInputFindUserByUsername): Promise<RepoOutputUserProfile> {
     const user = await prisma.user.findUnique({
         where: { username: dto.username },
@@ -19,6 +16,7 @@ export async function repoFindUserByUsername(dto: RepoInputFindUserByUsername):
             username: true,
             displayUsername: true,
             image: true,
+            bio: true,
             createdAt: true,
             updatedAt: true,
         }
@@ -27,9 +25,6 @@ export async function repoFindUserByUsername(dto: RepoInputFindUserByUsername):
     return user;
 }
 
-/**
- * Find user by ID
- */
 export async function repoFindUserById(dto: RepoInputFindUserById): Promise<RepoOutputUserProfile> {
     const user = await prisma.user.findUnique({
         where: { id: dto.id },
@@ -40,6 +35,7 @@ export async function repoFindUserById(dto: RepoInputFindUserById): Promise<Repo
             username: true,
             displayUsername: true,
             image: true,
+            bio: true,
             createdAt: true,
             updatedAt: true,
         }
@@ -48,9 +44,6 @@ export async function repoFindUserById(dto: RepoInputFindUserById): Promise<Repo
     return user;
 }
 
-/**
- * Find user by email
- */
 export async function repoFindUserByEmail(dto: RepoInputFindUserByEmail): Promise<RepoOutputUserProfile> {
     const user = await prisma.user.findUnique({
         where: { email: dto.email },
@@ -61,6 +54,7 @@ export async function repoFindUserByEmail(dto: RepoInputFindUserByEmail): Promis
             username: true,
             displayUsername: true,
             image: true,
+            bio: true,
             createdAt: true,
             updatedAt: true,
         }

src/modules/auth/auth-service-dto.ts

@@ -34,6 +34,7 @@ export type ServiceOutputUserProfile = {
     username: string | null;
     displayUsername: string | null;
     image: string | null;
+    bio: string | null;
     createdAt: Date;
     updatedAt: Date;
 } | null;