fix: resolve Docker Compose build failure with Prisma Client generation

Fix critical issue where `docker compose build` was failing with:
"Module not found: Can't resolve '../prisma/client-generated'"

Root cause:
- Next.js build requires Prisma Client during webpack compilation
- Prisma Client was not being generated before the Next.js build step

Changes:
1. keep-notes/Dockerfile:
   - Add explicit `RUN npx prisma generate` in builder stage before `npm run build`
   - Ensures client-generated directory exists when Next.js compiles

2. keep-notes/package.json:
   - Update build script: "prisma generate && next build --webpack"
   - Double-protection: runs prisma generate both in Dockerfile and build script

3. docker-compose.yml:
   - Remove obsolete `version: '3.8'` attribute (deprecated in Docker Compose v2)

Result:
✓ Docker build now completes successfully
✓ Prisma Client generated at ./prisma/client-generated
✓ Next.js webpack compilation finds the client module

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

docker-compose.yml

@@ -1,5 +1,3 @@
-version: '3.8'
-
 services:
   # ============================================
   # keep-notes - Next.js Web Application

keep-notes/Dockerfile

@@ -20,7 +20,11 @@ WORKDIR /app
 COPY --from=deps /app/node_modules ./node_modules
 COPY . .
 
-# Build Next.js with Webpack (NO Prisma generate here)
+# Copy Prisma schema and generate client BEFORE Next.js build
+COPY prisma ./prisma
+RUN npx prisma generate
+
+# Build Next.js with Webpack
 ENV NEXT_TELEMETRY_DISABLED=1
 RUN npm run build
 
@@ -44,13 +48,10 @@ RUN chown nextjs:nodejs .next
 COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
 COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
 
-# Copy Prisma schema and node_modules (needed for generation in runner)
+# Copy Prisma schema and generated client
 COPY --from=builder /app/prisma ./prisma
 COPY --from=builder --chown=nextjs:nodejs /app/node_modules ./node_modules
 
-# Generate Prisma Client in RUNNER (after all files are copied)
-RUN npx prisma generate
-
 USER nextjs
 
 EXPOSE 3000

keep-notes/package.json

@@ -5,7 +5,7 @@
   "scripts": {
     "dev": "set TURBOPACK=0&& next dev",
     "dev:turbo": "next dev",
-    "build": "next build --webpack",
+    "build": "prisma generate && next build --webpack",
     "start": "next start",
     "db:generate": "prisma generate",
     "test": "playwright test",