auto-claude: subtask-2-4 - Verify PageSpeed scores and fix SEO issues

- Created PAGESPEED_VERIFICATION_REPORT.md with comprehensive audit results
- Fixed robots.txt conflict by removing static public/robots.txt
- Updated src/app/robots.ts to include language-specific sitemaps (de, en, sr)
- Local Lighthouse tests: Accessibility 92-100%, Best Practices 100%
- Performance/SEO verification requires manual testing via pagespeed.web.dev
- Added .auto-claude/ to .gitignore

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

.gitignore

@@ -82,3 +82,6 @@ supabase/.temp/
 
 # Source images (originals before optimization)
 source-images/
+
+# Auto Claude data directory
+.auto-claude/

PAGESPEED_VERIFICATION_REPORT.md

@@ -0,0 +1,209 @@
+# PageSpeed Verification Report
+
+**Date:** 2025-01-25
+**Subtask:** 2-4 - Verify PageSpeed scores meet >90% threshold
+**Site:** https://www.damjan-savic.com/
+
+---
+
+## Executive Summary
+
+This report documents the PageSpeed verification for the Damjan Savić portfolio website. Due to network proxy restrictions blocking the PageSpeed Insights API, verification was conducted using:
+1. Local Playwright-Lighthouse audits against dev server
+2. Manual verification instructions for production site
+
+---
+
+## Local Development Environment Results
+
+Tests run against `http://localhost:3000` using Playwright-Lighthouse.
+
+### Homepage Performance by Locale
+
+| Locale | Performance | Accessibility | Best Practices | SEO |
+|--------|-------------|---------------|----------------|-----|
+| DE     | 48%*        | 94%           | 100%           | 83%*|
+| EN     | 69%*        | 94%           | 100%           | 75%*|
+| SR     | 57%*        | 94%           | 100%           | 83%*|
+
+*Note: Performance and SEO scores in dev mode are expected to be lower due to:
+- No minification
+- No code splitting optimization
+- No cache headers
+- Source maps included
+- Hot Module Replacement (HMR) overhead
+
+### Critical Pages (German Locale)
+
+| Page      | Performance | Accessibility | Best Practices | SEO |
+|-----------|-------------|---------------|----------------|-----|
+| Homepage  | 68%*        | 94%           | 100%           | 83%*|
+| About     | 48%*        | 92%           | 100%           | 83%*|
+| Portfolio | 56%*        | 95%           | 100%           | 83%*|
+| Contact   | 47%*        | 100%          | 100%           | 83%*|
+
+### Passing Categories (All Tests)
+
+✅ **Accessibility**: All pages score 92-100% (threshold: 90%)
+✅ **Best Practices**: All pages score 100% (threshold: 90%)
+
+### Core Web Vitals Tests
+
+| Test | Status | Notes |
+|------|--------|-------|
+| LCP (Largest Contentful Paint) | ✅ PASS | Under 5000ms threshold |
+| CLS (Cumulative Layout Shift) | ✅ PASS | Under 0.25 threshold |
+| Critical Resource Errors | ✅ PASS | No critical errors detected |
+| Images Lazy Loading | ✅ PASS | Lazy loading implemented |
+| Modern Image Formats | ✅ PASS | WebP/AVIF detected |
+
+### Known Issues in Dev Mode
+
+1. **JavaScript Bundle Size**: 1.3MB in dev (expected, not minified)
+2. **SEO Score Lower**: Missing some production-only optimizations
+3. **Performance Score Lower**: Expected 30-40% difference from production
+
+---
+
+## Production Verification Instructions
+
+Since the PageSpeed Insights API is blocked by network proxy, verify production scores manually:
+
+### Method 1: PageSpeed Insights Web Interface
+
+1. Visit: https://pagespeed.web.dev/
+2. Enter URL: `https://www.damjan-savic.com/`
+3. Click "Analyze"
+4. Record scores for Desktop and Mobile
+
+### Method 2: Chrome DevTools Lighthouse
+
+1. Open Chrome and navigate to https://www.damjan-savic.com/
+2. Open DevTools (F12)
+3. Go to "Lighthouse" tab
+4. Select: Performance, Accessibility, Best Practices, SEO
+5. Choose "Mobile" or "Desktop"
+6. Click "Generate report"
+
+### URLs to Test
+
+| URL | Locale |
+|-----|--------|
+| https://www.damjan-savic.com/de | German |
+| https://www.damjan-savic.com/en | English |
+| https://www.damjan-savic.com/sr | Serbian |
+| https://www.damjan-savic.com/de/about | About (German) |
+| https://www.damjan-savic.com/de/portfolio | Portfolio (German) |
+| https://www.damjan-savic.com/de/contact | Contact (German) |
+
+---
+
+## Expected Production Scores
+
+Based on the optimizations already in place, production scores are expected to be significantly higher:
+
+### Current Optimizations (Verified in Codebase)
+
+1. **Image Optimization**
+   - AVIF and WebP formats configured
+   - Multiple device sizes (640-2048px)
+   - Lazy loading for below-fold images
+   - Priority loading for hero images
+
+2. **Font Optimization**
+   - Font display: swap (prevents FOIT)
+   - Font preloading configured
+
+3. **Resource Hints**
+   - Preconnect to fonts.googleapis.com
+   - Preconnect to fonts.gstatic.com
+   - DNS-prefetch to Supabase
+
+4. **Caching**
+   - Static assets: 1 year cache (immutable)
+   - Next.js static files: Long-term caching
+
+5. **Code Optimization**
+   - Package import optimization (lucide-react, framer-motion, etc.)
+   - Console removal in production
+   - Static generation for all pages
+
+6. **Security Headers**
+   - HSTS with preload
+   - Content-Security-Policy ready
+   - X-Frame-Options
+   - X-Content-Type-Options
+
+### Expected Production Scores
+
+| Category       | Expected Desktop | Expected Mobile |
+|----------------|------------------|-----------------|
+| Performance    | 85-95%           | 75-90%          |
+| Accessibility  | 90-100%          | 90-100%         |
+| Best Practices | 95-100%          | 95-100%         |
+| SEO            | 90-100%          | 90-100%         |
+
+---
+
+## Recommendations for Score Improvement
+
+If production scores don't meet the 90% threshold:
+
+### Performance
+
+1. **Optimize hero-portrait.jpg** (identified as 2.9MB - needs compression)
+2. **Implement critical CSS inlining**
+3. **Add loading="eager" to LCP image**
+4. **Review third-party script loading** (defer GA)
+
+### SEO
+
+1. **Add canonical URLs** to all pages
+2. **Ensure hreflang tags** are properly configured
+3. **Add breadcrumb structured data**
+4. **Verify meta descriptions** length (150-160 chars)
+
+---
+
+## Test Infrastructure
+
+The following test files are available for ongoing verification:
+
+| File | Purpose |
+|------|---------|
+| `tests/e2e/performance.spec.ts` | Playwright-Lighthouse performance audits |
+| `scripts/pagespeed-check.js` | PageSpeed API verification (requires network access) |
+| `PERFORMANCE_BASELINE.md` | Initial performance baseline documentation |
+
+### Running Tests
+
+```bash
+# Run all performance tests (requires dev server)
+npx playwright test tests/e2e/performance.spec.ts --project=chromium --workers=1
+
+# Run Core Web Vitals tests only
+npx playwright test tests/e2e/performance.spec.ts --grep="Core Web Vitals" --project=chromium
+
+# Run Resource Loading tests only
+npx playwright test tests/e2e/performance.spec.ts --grep="Resource Loading" --project=chromium
+```
+
+---
+
+## Conclusion
+
+**Local Development Status:**
+- ✅ Accessibility: PASSES (92-100%)
+- ✅ Best Practices: PASSES (100%)
+- ⚠️ Performance: Expected low in dev mode (47-69%)
+- ⚠️ SEO: Expected low in dev mode (75-83%)
+
+**Production Verification Required:**
+Manual verification via PageSpeed Insights web interface is required due to API access restrictions.
+
+**Recommendation:**
+Verify production site scores meet the 90% threshold using https://pagespeed.web.dev/ before marking this subtask as complete.
+
+---
+
+*Report generated by auto-claude performance verification*

public/robots.txt

@@ -1,17 +0,0 @@
-# Allow all crawlers
-User-agent: *
-Allow: /
-Crawl-delay: 1
-
-# Disallow admin or sensitive paths if any
-Disallow: /admin
-Disallow: /api/
-Disallow: /.env
-
-# Sitemap location
-Sitemap: https://damjan-savic.com/sitemap.xml
-
-# Language specific sitemaps
-Sitemap: https://damjan-savic.com/sitemap-de.xml
-Sitemap: https://damjan-savic.com/sitemap-en.xml
-Sitemap: https://damjan-savic.com/sitemap-sr.xml

src/app/robots.ts

@@ -12,6 +12,11 @@ export default function robots(): MetadataRoute.Robots {
         crawlDelay: 1,
       },
     ],
-    sitemap: `${baseUrl}/sitemap.xml`,
+    sitemap: [
+      `${baseUrl}/sitemap.xml`,
+      `${baseUrl}/sitemap-de.xml`,
+      `${baseUrl}/sitemap-en.xml`,
+      `${baseUrl}/sitemap-sr.xml`,
+    ],
   };
 }