feat: SEO optimization for maximum exposure

- Added comprehensive meta tags with 40+ keywords
- Created sitemap.ts with all routes
- Updated robots.txt for search engine crawlers
- Added manifest.json for PWA support
- Added JSON-LD structured data for SEO
- Enhanced README with:
  - Table of contents
  - Star history chart
  - Better keyword density
  - Social media links
  - Tech stack tables
  - API documentation tables
- Added 20 GitHub topics for discoverability
- Optimized Open Graph and Twitter cards

public/manifest.json

@@ -0,0 +1,58 @@
+{
+  "name": "Mantle AI Trader",
+  "short_name": "MantleAI",
+  "description": "AI-powered cryptocurrency trading bot with news sentiment analysis, technical indicators, backtesting, and paper trading.",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#0a0a0a",
+  "theme_color": "#3b82f6",
+  "orientation": "any",
+  "scope": "/",
+  "lang": "en-US",
+  "categories": ["finance", "productivity", "utilities"],
+  "icons": [
+    {
+      "src": "/logo.svg",
+      "sizes": "any",
+      "type": "image/svg+xml",
+      "purpose": "any maskable"
+    },
+    {
+      "src": "/icon-192.png",
+      "sizes": "192x192",
+      "type": "image/png"
+    },
+    {
+      "src": "/icon-512.png",
+      "sizes": "512x512",
+      "type": "image/png"
+    }
+  ],
+  "screenshots": [
+    {
+      "src": "/dashboard-screenshot.png",
+      "sizes": "1280x720",
+      "type": "image/png",
+      "label": "Mantle AI Trader Dashboard"
+    }
+  ],
+  "shortcuts": [
+    {
+      "name": "Generate Signal",
+      "url": "/?action=signal",
+      "description": "Generate a new AI trading signal"
+    },
+    {
+      "name": "View Positions",
+      "url": "/?tab=positions",
+      "description": "View your current trading positions"
+    },
+    {
+      "name": "Run Backtest",
+      "url": "/?tab=backtest",
+      "description": "Run a strategy backtest"
+    }
+  ],
+  "related_applications": [],
+  "prefer_related_applications": false
+}

public/robots.txt

@@ -1,14 +1,46 @@
+# https://www.robotstxt.org/robotstxt.html
+# Sitemap
+Sitemap: https://github.com/roman-ryzenadvanced/mantle-ai-trader/sitemap.xml
+
+# Allow all crawlers
+User-agent: *
+Allow: /
+
+# Allow indexing of all pages
+Allow: /api/
+Allow: /signals
+Allow: /backtest
+Allow: /demo
+Allow: /news
+
+# Disallow sensitive areas (if any)
+Disallow: /private/
+Disallow: /.env
+
+# Crawl-delay for respectful crawling
+Crawl-delay: 1
+
+# Specific rules for major search engines
 User-agent: Googlebot
 Allow: /
+Crawl-delay: 0
 
 User-agent: Bingbot
 Allow: /
+Crawl-delay: 1
 
-User-agent: Twitterbot
+User-agent: DuckDuckBot
 Allow: /
+Crawl-delay: 1
 
-User-agent: facebookexternalhit
+User-agent: Slurp
 Allow: /
+Crawl-delay: 1
 
-User-agent: *
+User-agent: Baiduspider
 Allow: /
+Crawl-delay: 2
+
+User-agent: YandexBot
+Allow: /
+Crawl-delay: 2