feat: Docker部署与CI/CD集成, 搜索栏修复, 上传目录改为data

README_MODEL.md

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+# Data Model & Database Schema
+
+## Overview
+This document outlines the MySQL database schema for the NEXUS platform. It is designed for enterprise scalability, utilizing foreign keys, proper indexing, and efficient data types.
+
+## 1. Prisma Schema (Recommended for Next.js)
+
+If using Prisma ORM, place this in `prisma/schema.prisma`:
+
+```prisma
+generator client {
+  provider = "prisma-client-js"
+}
+
+datasource db {
+  provider = "mysql"
+  url      = env("DATABASE_URL")
+}
+
+enum UserRole {
+  USER
+  ADMIN
+  CREATOR
+}
+
+enum UserStatus {
+  ACTIVE
+  BANNED
+  FLAGGED
+}
+
+enum MaterialType {
+  CODE
+  ASSET_ZIP
+  VIDEO
+}
+
+model User {
+  id        String   @id @default(uuid())
+  username  String   @unique @db.VarChar(50)
+  password  String   @db.VarChar(255) // Hashed
+  avatarUrl String?  @db.VarChar(500)
+  role      UserRole @default(USER)
+  status    UserStatus @default(ACTIVE)
+  createdAt DateTime @default(now())
+  lastLogin DateTime @updatedAt
+
+  materials Material[]
+  comments  Comment[]
+  favorites Favorite[]
+
+  @@index([username])
+}
+
+model Material {
+  id          String       @id @default(uuid())
+  title       String       @db.VarChar(100)
+  description String       @db.Text
+  type        MaterialType
+  contentUrl  String?      @db.VarChar(500)
+  codeSnippet String?      @db.LongText
+  language    String?      @db.VarChar(20)
+  
+  // Stats (Denormalized for performance, or calculated via aggregation)
+  views       Int          @default(0)
+  downloads   Int          @default(0)
+
+  authorId    String
+  author      User         @relation(fields: [authorId], references: [id], onDelete: Cascade)
+
+  createdAt   DateTime     @default(now())
+  updatedAt   DateTime     @updatedAt
+
+  comments    Comment[]
+  favorites   Favorite[]
+  tags        Tag[]
+
+  @@index([type])
+  @@index([authorId])
+}
+
+model Comment {
+  id         String   @id @default(uuid())
+  content    String   @db.VarChar(1000)
+  createdAt  DateTime @default(now())
+  
+  authorId   String
+  author     User     @relation(fields: [authorId], references: [id])
+  
+  materialId String
+  material   Material @relation(fields: [materialId], references: [id], onDelete: Cascade)
+
+  @@index([materialId])
+}
+
+model Favorite {
+  userId     String
+  materialId String
+  user       User     @relation(fields: [userId], references: [id])
+  material   Material @relation(fields: [materialId], references: [id])
+
+  @@id([userId, materialId]) // Composite Primary Key
+}
+
+model Tag {
+  id        Int        @id @default(autoincrement())
+  name      String     @unique
+  materials Material[]
+}
+```
+
+## 2. Raw MySQL SQL Script
+
+Use this if initializing the database manually via `mysql -u root -p < schema.sql`:
+
+```sql
+CREATE DATABASE IF NOT EXISTS nexus_db;
+USE nexus_db;
+
+-- Users Table
+CREATE TABLE users (
+    id CHAR(36) NOT NULL PRIMARY KEY,
+    username VARCHAR(50) NOT NULL UNIQUE,
+    password_hash VARCHAR(255) NOT NULL,
+    avatar_url VARCHAR(500),
+    role ENUM('USER', 'ADMIN', 'CREATOR') DEFAULT 'USER',
+    status ENUM('ACTIVE', 'BANNED', 'FLAGGED') DEFAULT 'ACTIVE',
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    last_login TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+    INDEX idx_username (username)
+) ENGINE=InnoDB;
+
+-- Materials Table
+CREATE TABLE materials (
+    id CHAR(36) NOT NULL PRIMARY KEY,
+    title VARCHAR(100) NOT NULL,
+    description TEXT,
+    type ENUM('CODE', 'ASSET_ZIP', 'VIDEO') NOT NULL,
+    content_url VARCHAR(500),
+    code_snippet LONGTEXT,
+    language VARCHAR(20),
+    views INT DEFAULT 0,
+    downloads INT DEFAULT 0,
+    author_id CHAR(36) NOT NULL,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+    FOREIGN KEY (author_id) REFERENCES users(id) ON DELETE CASCADE,
+    INDEX idx_type (type)
+) ENGINE=InnoDB;
+
+-- Comments Table
+CREATE TABLE comments (
+    id CHAR(36) NOT NULL PRIMARY KEY,
+    content VARCHAR(1000) NOT NULL,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    author_id CHAR(36) NOT NULL,
+    material_id CHAR(36) NOT NULL,
+    FOREIGN KEY (author_id) REFERENCES users(id) ON DELETE CASCADE,
+    FOREIGN KEY (material_id) REFERENCES materials(id) ON DELETE CASCADE
+) ENGINE=InnoDB;
+
+-- Favorites (Join Table)
+CREATE TABLE favorites (
+    user_id CHAR(36) NOT NULL,
+    material_id CHAR(36) NOT NULL,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+    PRIMARY KEY (user_id, material_id),
+    FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE,
+    FOREIGN KEY (material_id) REFERENCES materials(id) ON DELETE CASCADE
+) ENGINE=InnoDB;
+```