📝 priettier check

docs/ENV_CONFIG_GUIDE.md

@@ -5,6 +5,7 @@
 This guide documents the configuration for build-time environment variables in the Next.js CI/CD pipeline.
 
 **Problem Solved:** Next.js 16 requires `NEXT_PUBLIC_*` variables available during `npm run build` for:
+
 - SEO metadata (`metadataBase`)
 - Sitemap generation
 - OpenGraph URLs
@@ -19,6 +20,7 @@ This guide documents the configuration for build-time environment variables in t
 ### 1. `.gitea/workflows/main.yml`
 
 **Changes:**
+
 - Added step to create `.env` from Gitea secrets (after checkout)
 - Added cleanup step to remove `.env` after Docker push
 
@@ -34,7 +36,7 @@ This guide documents the configuration for build-time environment variables in t
     NODE_ENV=production
     NEXT_TELEMETRY_DISABLED=1
     EOF
-    
+
     echo "✅ .env file created successfully"
     echo "Preview (secrets masked):"
     cat .env | sed 's/=.*/=***MASKED***/g'
@@ -44,7 +46,7 @@ This guide documents the configuration for build-time environment variables in t
 - name: 🚀 Push Docker image to registry
   run: |
     docker push ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest
-    
+
     # Clean up sensitive files
     rm -f .env
     echo "✅ Cleaned up .env file"
@@ -55,6 +57,7 @@ This guide documents the configuration for build-time environment variables in t
 ### 2. `Dockerfile.nextjs`
 
 **Changes:**
+
 - Added `COPY .env* ./` in builder stage (after copying node_modules, before copying source code)
 
 **Added Section:**
@@ -73,6 +76,7 @@ COPY .env* ./
 ### 3. `.dockerignore`
 
 **Changes:**
+
 - Modified to allow `.env` file (created by CI/CD) while excluding other `.env*` files
 
 **Updated Section:**
@@ -85,6 +89,7 @@ COPY .env* ./
 ```
 
 **Explanation:**
+
 - `.env*` excludes all environment files
 - `!.env` creates exception for main `.env` (from CI/CD)
 - `.env.local`, `.env.development`, `.env.production.local` remain excluded
@@ -99,11 +104,12 @@ Navigate to: **Repository Settings → Secrets**
 
 Add the following secret:
 
-| Secret Name | Value | Type | Description |
-|------------|-------|------|-------------|
+| Secret Name            | Value                    | Type               | Description         |
+| ---------------------- | ------------------------ | ------------------ | ------------------- |
 | `NEXT_PUBLIC_SITE_URL` | `https://yourdomain.com` | Secret or Variable | Production site URL |
 
 **Notes:**
+
 - Can be configured as **Secret** (masked in logs) or **Variable** (visible in logs)
 - Recommended: Use **Variable** since it's a public URL
 - For sensitive values (API keys), always use **Secret**
@@ -113,12 +119,14 @@ Add the following secret:
 To add more build-time variables:
 
 1. **Add to Gitea Secrets/Variables:**
+
    ```
    NEXT_PUBLIC_GA_ID=G-XXXXXXXXXX
    NEXT_PUBLIC_API_URL=https://api.example.com
    ```
 
 2. **Update workflow `.env` creation step:**
+
    ```yaml
    cat > .env << EOF
    NEXT_PUBLIC_SITE_URL=${{ secrets.NEXT_PUBLIC_SITE_URL }}
@@ -138,6 +146,7 @@ To add more build-time variables:
 ### Local Testing
 
 1. **Create test `.env` file:**
+
    ```bash
    cat > .env << EOF
    NEXT_PUBLIC_SITE_URL=http://localhost:3030
@@ -147,24 +156,27 @@ To add more build-time variables:
    ```
 
 2. **Build Docker image:**
+
    ```bash
    docker build -t mypage:test -f Dockerfile.nextjs .
    ```
 
 3. **Verify variable is embedded (should show "NOT FOUND" - correct behavior):**
+
    ```bash
    docker run --rm mypage:test node -e "console.log(process.env.NEXT_PUBLIC_SITE_URL || 'NOT FOUND')"
    ```
-   
+
    **Expected Output:** `NOT FOUND`
-   
+
    **Why?** `NEXT_PUBLIC_*` variables are embedded in JavaScript bundle during build, NOT available as runtime environment variables.
 
 4. **Test application starts:**
+
    ```bash
    docker run --rm -p 3030:3030 mypage:test
    ```
-   
+
    Visit `http://localhost:3030` to verify.
 
 5. **Cleanup:**
@@ -214,10 +226,10 @@ To add more build-time variables:
 
 ### 🔒 Sensitive Data Guidelines
 
-| Type | Use For | Access |
-|------|---------|--------|
-| `NEXT_PUBLIC_*` | Client-side config (URLs, feature flags) | Public (embedded in JS bundle) |
-| `SECRET_*` | Server-side secrets (API keys, DB passwords) | Private (runtime only) |
+| Type            | Use For                                      | Access                         |
+| --------------- | -------------------------------------------- | ------------------------------ |
+| `NEXT_PUBLIC_*` | Client-side config (URLs, feature flags)     | Public (embedded in JS bundle) |
+| `SECRET_*`      | Server-side secrets (API keys, DB passwords) | Private (runtime only)         |
 
 ---
 
@@ -226,10 +238,12 @@ To add more build-time variables:
 ### Issue: Variables not available during build
 
 **Symptoms:**
+
 - Next.js build errors about missing `NEXT_PUBLIC_SITE_URL`
 - Metadata/sitemap generation fails
 
 **Solution:**
+
 - Verify `NEXT_PUBLIC_SITE_URL` secret exists in Gitea
 - Check workflow logs for `.env` creation step
 - Ensure `.env` file is created BEFORE Docker build
@@ -237,9 +251,11 @@ To add more build-time variables:
 ### Issue: Variables not working in application
 
 **Symptoms:**
+
 - URLs show as `undefined` or `null` in production
 
 **Diagnosis:**
+
 ```bash
 # Check if variable is in bundle (should work):
 curl https://yourdomain.com | grep -o 'NEXT_PUBLIC_SITE_URL'
@@ -249,6 +265,7 @@ docker exec mypage-prod node -e "console.log(process.env.NEXT_PUBLIC_SITE_URL)"
 ```
 
 **Solution:**
+
 - Verify `.env` was copied during Docker build
 - Check Dockerfile logs for `COPY .env* ./` step
 - Rebuild with `--no-cache` if needed
@@ -256,9 +273,11 @@ docker exec mypage-prod node -e "console.log(process.env.NEXT_PUBLIC_SITE_URL)"
 ### Issue: `.env` file not found during Docker build
 
 **Symptoms:**
+
 - Docker build warning: `COPY .env* ./` - no files matched
 
 **Solution:**
+
 - Check `.dockerignore` allows `.env` file
 - Verify workflow creates `.env` BEFORE Docker build
 - Check file exists: `ls -la .env` in workflow
@@ -289,6 +308,7 @@ After deploying changes:
 ## Support
 
 For issues or questions:
+
 1. Check workflow logs in Gitea Actions
 2. Review Docker build logs
 3. Verify Gitea secrets configuration

docs/OPTIMIZATION_REPORT.md

@@ -1,4 +1,5 @@
 # Production Optimizations Report
+
 Date: 2025-11-24
 Branch: feat/production-improvements
 
@@ -7,6 +8,7 @@ Branch: feat/production-improvements
 Successfully implemented 7 categories of production optimizations for Next.js 16 blog application.
 
 ### Build Status: SUCCESS
+
 - Build Time: ~3.9s compilation + ~1.5s static generation
 - Static Pages Generated: 19 pages
 - Bundle Size: 1.2MB (static assets)
@@ -17,10 +19,12 @@ Successfully implemented 7 categories of production optimizations for Next.js 16
 ## 1. Bundle Size Optimization - Remove Unused Dependencies
 
 ### Actions Taken:
+
 - Removed `react-syntax-highlighter` (11 packages eliminated)
 - Removed `@types/react-syntax-highlighter`
 
 ### Impact:
+
 - **11 packages removed** from dependency tree
 - Cleaner bundle, faster npm installs
 - All remaining dependencies verified as actively used
@@ -30,11 +34,13 @@ Successfully implemented 7 categories of production optimizations for Next.js 16
 ## 2. Lazy Loading for Heavy Components
 
 ### Status:
+
 - Attempted to implement dynamic imports for CodeBlock component
 - Tool limitations prevented full implementation
 - Benefit would be minimal (CodeBlock already client-side rendered)
 
 ### Recommendation:
+
 - Consider manual lazy loading in future if CodeBlock becomes heavier
 - Current implementation is already performant
 
@@ -45,16 +51,19 @@ Successfully implemented 7 categories of production optimizations for Next.js 16
 ### Security Enhancements Applied:
 
 **Dockerfile.nextjs:**
+
 - Remove SUID/SGID binaries (prevent privilege escalation)
 - Remove apk package manager after dependencies installed
 - Create proper permissions for /tmp, /.next/cache, /app/logs directories
 
 **docker-compose.prod.yml:**
+
 - Added `security_opt: no-new-privileges:true`
 - Added commented read-only filesystem option (optional hardening)
 - Documented tmpfs mounts for extra security
 
 ### Security Posture:
+
 - Minimal attack surface in production container
 - Non-root user execution enforced
 - Package manager unavailable at runtime
@@ -66,22 +75,26 @@ Successfully implemented 7 categories of production optimizations for Next.js 16
 ### Files Created:
 
 **app/sitemap.ts:**
+
 - Dynamic sitemap generation from markdown posts
 - Static pages included (/, /blog, /about)
 - Posts include lastModified date from frontmatter
 - Priority and changeFrequency configured
 
 **app/robots.ts:**
+
 - Allows all search engines
-- Disallows /api/, /_next/, /admin/
+- Disallows /api/, /\_next/, /admin/
 - References sitemap.xml
 
 **app/feed.xml/route.ts:**
+
 - RSS 2.0 feed for latest 20 posts
 - Includes title, description, author, pubDate
 - Proper content-type and cache headers
 
 ### SEO Impact:
+
 - Search engines can discover all content via sitemap
 - RSS feed for blog subscribers
 - Proper robots.txt prevents indexing of internal routes
@@ -93,16 +106,19 @@ Successfully implemented 7 categories of production optimizations for Next.js 16
 ### Configuration Updates:
 
 **Sharp:**
+
 - Already installed (production-grade image optimizer)
 - Faster than default Next.js image optimizer
 
 **next.config.js - Image Settings:**
+
 - Cache optimized images for 30 days (`minimumCacheTTL`)
 - Support AVIF and WebP formats
 - SVG rendering enabled with security CSP
 - Responsive image sizes configured (640px to 3840px)
 
 ### Performance Impact:
+
 - Faster image processing during builds
 - Smaller image file sizes (AVIF/WebP)
 - Better Core Web Vitals (LCP, CLS)
@@ -113,21 +129,25 @@ Successfully implemented 7 categories of production optimizations for Next.js 16
 
 ### Cache Headers Added:
 
-**Static Assets (/_next/static/*):**
+**Static Assets (/\_next/static/\*):**
+
 - `Cache-Control: public, max-age=31536000, immutable`
 - 1 year cache for versioned assets
 
-**Images (/images/*):**
+**Images (/images/\*):**
+
 - `Cache-Control: public, max-age=31536000, immutable`
 
 ### Experimental Features Enabled:
 
 **next.config.js - experimental:**
+
 - `staleTimes.dynamic: 30s` (client-side cache for dynamic pages)
 - `staleTimes.static: 180s` (client-side cache for static pages)
 - `optimizePackageImports` for react-markdown ecosystem
 
 ### Performance Impact:
+
 - Reduced bandwidth usage
 - Faster repeat visits (cached assets)
 - Improved navigation speed (stale-while-revalidate)
@@ -137,18 +157,22 @@ Successfully implemented 7 categories of production optimizations for Next.js 16
 ## 7. Bundle Analyzer Setup
 
 ### Tools Installed:
+
 - `@next/bundle-analyzer` (16.0.3)
 
 ### NPM Scripts Added:
+
 - `npm run analyze` - Full bundle analysis
 - `npm run analyze:server` - Server bundle only
 - `npm run analyze:browser` - Browser bundle only
 
 ### Configuration:
+
 - `next.config.analyzer.js` created
 - Enabled with `ANALYZE=true` environment variable
 
 ### Usage:
+
 ```bash
 npm run analyze
 # Opens browser with bundle visualization
@@ -160,6 +184,7 @@ npm run analyze
 ## Bundle Size Analysis
 
 ### Static Assets:
+
 ```
 Total Static: 1.2MB
 - Largest chunks:
@@ -170,10 +195,12 @@ Total Static: 1.2MB
 ```
 
 ### Standalone Output:
+
 - Total: 44MB (includes Node.js runtime, dependencies, server)
 - Expected Docker image size: ~150MB (Alpine + Node.js + app)
 
 ### Bundle Composition:
+
 - React + React-DOM: Largest dependencies
 - react-markdown ecosystem: Second largest
 - Next.js framework: Optimized with tree-shaking
@@ -183,6 +210,7 @@ Total Static: 1.2MB
 ## Build Verification
 
 ### Build Output:
+
 ```
 Creating an optimized production build ...
 ✓ Compiled successfully in 3.9s
@@ -200,6 +228,7 @@ Route (app)
 ```
 
 ### Pre-rendered Pages:
+
 - 19 static pages generated
 - 3 blog posts
 - 7 tag pages
@@ -210,6 +239,7 @@ Route (app)
 ## Files Modified/Created
 
 ### Modified:
+
 - `Dockerfile.nextjs` (security hardening)
 - `docker-compose.prod.yml` (security options)
 - `next.config.js` (image optimization, caching headers)
@@ -217,6 +247,7 @@ Route (app)
 - `package-lock.json` (dependency updates)
 
 ### Created:
+
 - `app/sitemap.ts` (dynamic sitemap)
 - `app/robots.ts` (robots.txt)
 - `app/feed.xml/route.ts` (RSS feed)
@@ -227,6 +258,7 @@ Route (app)
 ## Performance Recommendations
 
 ### Implemented:
+
 1. Bundle size reduced (11 packages removed)
 2. Security hardened (Docker + CSP)
 3. SEO optimized (sitemap + robots + RSS)
@@ -235,7 +267,8 @@ Route (app)
 6. Bundle analyzer ready for monitoring
 
 ### Future Optimizations:
-1. Consider CDN for static assets (/images, /_next/static)
+
+1. Consider CDN for static assets (/images, /\_next/static)
 2. Monitor bundle sizes with `npm run analyze` on each release
 3. Add bundle size limits in CI/CD (fail if > threshold)
 4. Consider Edge deployment for global performance
@@ -246,6 +279,7 @@ Route (app)
 ## Production Deployment Checklist
 
 Before deploying:
+
 - [ ] Set `NEXT_PUBLIC_SITE_URL` in production environment
 - [ ] Verify Caddy reverse proxy configuration
 - [ ] Test Docker build: `npm run docker:build`