chore: add pnpm workspace configuration for apps and packages

apps/backend/Dockerfile

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+# apps/backend/Dockerfile
+FROM node:24-alpine AS base
+RUN npm install -g pnpm@8
+
+FROM base AS dependencies
+WORKDIR /app
+
+# Copy workspace configuration
+COPY pnpm-workspace.yaml package.json ./
+COPY apps/backend/package.json ./apps/backend/
+COPY packages/shared/package.json ./packages/shared/
+
+# Install dependencies
+RUN pnpm install --frozen-lockfile
+
+FROM base AS build
+WORKDIR /app
+COPY --from=dependencies /app/node_modules ./node_modules
+COPY --from=dependencies /app/apps/backend/node_modules ./apps/backend/node_modules
+COPY --from=dependencies /app/packages/shared/node_modules ./packages/shared/node_modules
+
+# Copy source code
+COPY packages/shared ./packages/shared
+COPY apps/backend ./apps/backend
+COPY prisma ./prisma
+
+# Build shared packages first
+RUN pnpm --filter @dreamchat/shared build
+
+# Generate Prisma client
+RUN pnpm db:generate
+
+# Build backend
+RUN pnpm --filter @dreamchat/backend build
+
+FROM base AS production
+WORKDIR /app
+
+# Copy only production dependencies
+COPY --from=dependencies /app/node_modules ./node_modules
+COPY --from=dependencies /app/apps/backend/node_modules ./apps/backend/node_modules
+COPY --from=build /app/apps/backend/dist ./dist
+COPY --from=build /app/packages/shared/dist ./node_modules/@dreamchat/shared/dist
+COPY --from=build /app/node_modules/.pnpm/@prisma+client* ./node_modules/.pnpm/
+COPY --from=build /app/node_modules/@prisma ./node_modules/@prisma
+
+# Create logs directory
+RUN mkdir -p /app/logs
+
+# Non-root user
+RUN addgroup -g 1001 -S nodejs
+RUN adduser -S nodejs -u 1001
+USER nodejs
+
+EXPOSE 3000
+
+CMD ["node", "dist/main.js"]

apps/backend/package.json

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+{
+  "name": "@dreamchat/backend",
+  "version": "1.0.0",
+  "scripts": {
+    "build": "nest build",
+    "dev": "nest start --watch",
+    "start": "node dist/main",
+    "test": "jest",
+    "test:watch": "jest --watch",
+    "lint": "eslint \"{src,apps,libs,test}/**/*.ts\"",
+    "db:migrate": "prisma migrate deploy",
+    "db:generate": "prisma generate",
+    "db:seed": "prisma db seed",
+    "clean": "rm -r dist"
+  },
+  "dependencies": {
+    "@dreamchat/shared": "workspace:*",
+    "@nestjs/common": "^11.1.14",
+    "@nestjs/core": "^11.1.14",
+    "@nestjs/platform-express": "^11.1.14",
+    "@nestjs/platform-socket.io": "^11.1.14",
+    "@nestjs/websockets": "^11.1.14",
+    "@prisma/client": "^7.4.1",
+    "@xenova/transformers": "^2.15.0",
+    "bcrypt": "^6.0.0",
+    "class-transformer": "^0.5.1",
+    "class-validator": "^0.14.0",
+    "dotenv": "^17.3.1",
+    "jsonwebtoken": "^9.0.0",
+    "passport": "^0.7.0",
+    "passport-jwt": "^4.0.0",
+    "passport-local": "^1.0.0",
+    "puppeteer": "^24.37.5",
+    "reflect-metadata": "^0.2.0",
+    "rxjs": "^7.8.0",
+    "socket.io": "^4.7.0"
+  },
+  "devDependencies": {
+    "@nestjs/cli": "^11.0.16",
+    "@nestjs/testing": "^11.1.14",
+    "@types/bcrypt": "^6.0.0",
+    "@types/jsonwebtoken": "^9.0.0",
+    "@types/node": "^24.10.13",
+    "@types/passport-jwt": "^4.0.0",
+    "@types/passport-local": "^1.0.0",
+    "jest": "^30.2.0",
+    "prisma": "^7.4.1",
+    "typescript": "^5.3.0"
+  }
+}

apps/backend/prisma.config.ts

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+import { defineConfig, env } from 'prisma/config';
+import 'dotenv/config';
+
+export default defineConfig({
+  schema: 'prisma/',
+  migrations: {
+    path: 'prisma/migrations',
+    seed: 'tsx prisma/seed.ts',
+  },
+  datasource: {
+    url: env('DATABASE_URL'),
+  },
+});

apps/backend/prisma/schema.prisma

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+// This is your Prisma schema file,
+// learn more about it in the docs: https://pris.ly/d/prisma-schema
+
+// Looking for ways to speed up your queries, or scale easily with your serverless or edge functions?
+// Try Prisma Accelerate: https://pris.ly/cli/accelerate-init
+
+generator client {
+  provider = "prisma-client-js"
+  previewFeatures = ["strictUndefinedChecks"]
+}
+
+datasource db {
+  provider = "postgresql"
+}

apps/backend/prisma/seed.ts

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+import { PrismaClient } from '@prisma/client';
+
+const prisma = new PrismaClient();
+
+async function main() {
+  console.log('🌱 Seeding database...');
+
+  // Create default admin user
+  const admin = await prisma.user.upsert({
+    where: { email: 'admin@dreamchat.local' },
+    update: {},
+    create: {
+      email: 'admin@dreamchat.local',
+      username: 'admin',
+      role: 'ADMIN',
+      passwordHash: '$2b$10$YourHashedPasswordHere', // Replace with actual hash
+    },
+  });
+
+  console.log(`✅ Created admin user: ${admin.email}`);
+
+  // Create a sample character
+  const character = await prisma.character.upsert({
+    where: { 
+      id: '00000000-0000-0000-0000-000000000001' 
+    },
+    update: {},
+    create: {
+      id: '00000000-0000-0000-0000-000000000001',
+      name: 'Alice',
+      personalityPrompt: 'You are Alice, a curious and adventurous explorer who loves discovering new things. You are friendly, witty, and always eager to help.',
+      backstory: 'Alice grew up in a small village at the edge of a vast forest. From a young age, she was fascinated by the unknown and would often venture into the woods to explore.',
+      attributes: {
+        traits: ['curious', 'brave', 'witty', 'friendly'],
+        age: 25,
+        species: 'human',
+        skills: ['navigation', 'survival', 'cartography'],
+      },
+      userId: admin.id,
+    },
+  });
+
+  console.log(`✅ Created sample character: ${character.name}`);
+
+  console.log('✅ Seeding complete!');
+}
+
+main()
+  .catch((e) => {
+    console.error('❌ Seeding failed:', e);
+    process.exit(1);
+  })
+  .finally(async () => {
+    await prisma.$disconnect();
+  });

apps/backend/tsconfig.json

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+{
+  "compilerOptions": {
+    "module": "commonjs",
+    "declaration": true,
+    "removeComments": true,
+    "emitDecoratorMetadata": true,
+    "experimentalDecorators": true,
+    "allowSyntheticDefaultImports": true,
+    "target": "ES2021",
+    "sourceMap": true,
+    "outDir": "./dist",
+    "baseUrl": "./",
+    "incremental": true,
+    "skipLibCheck": true,
+    "strictNullChecks": false,
+    "noImplicitAny": false,
+    "strictBindCallApply": false,
+    "forceConsistentCasingInFileNames": false,
+    "noFallthroughCasesInSwitch": false
+  }
+}