📝 priettier check

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`