docs: restructure website, optimize HTML, gitignore private files

Website docs (website/docs/):
- Delete 6 stale -md.html duplicates
- Rename docs-clients/miners/developers → clients/miners/developers.html
- Unify header/nav across all 15 pages (new .site-header pattern)
- Fix 34 dead href=# links with real targets
- Upgrade Font Awesome v4→v6 in index.html
- Replace search stub with live client-side search (15-page index)
- Extract all inline CSS into shared docs.css (+630 lines)
- Extract inline theme JS into shared theme.js
- Strip inline style= attributes from 10+ pages
- Add .announce-banner, .source-links, .search-results CSS classes
- Add Markdown Source links to clients/miners/developers pages
- Update components.html title to Architecture & Components
- Move browser-wallet.html to website/wallet/, leave redirect
- Update all dates to February 2026

Website root:
- Delete 6 root-level duplicate HTML files (160KB saved)
- Rewire index.html and 404.html links

Root README.md:
- Fix 8 broken doc links to new numbered folder structure
- Update copyright to 2026

.gitignore + .example files:
- Gitignore private files: .aitbc.yaml, .env, deploy scripts,
  GPU scripts, service scripts, infra configs, .windsurf/, website README
- Create 7 .example files for GitHub users with sanitized templates
- Untrack 47 previously committed private files

Live server:
- Push all website files to aitbc-cascade:/var/www/html/
- Clean stale admin.html and index.nginx-debian.html

scripts/service/run-local-services.sh

@@ -1,129 +0,0 @@
-#!/bin/bash
-
-# Run AITBC services locally for domain access
-
-set -e
-
-echo "🚀 Starting AITBC Services for Domain Access"
-echo "=========================================="
-
-# Kill any existing services
-echo "Cleaning up existing services..."
-sudo fuser -k 8000/tcp 2>/dev/null || true
-sudo fuser -k 9080/tcp 2>/dev/null || true
-sudo fuser -k 3001/tcp 2>/dev/null || true
-sudo fuser -k 3002/tcp 2>/dev/null || true
-pkill -f "uvicorn.*aitbc" 2>/dev/null || true
-pkill -f "server.py" 2>/dev/null || true
-
-# Wait for ports to be free
-sleep 2
-
-# Create logs directory
-mkdir -p logs
-
-echo ""
-echo "📦 Starting Services..."
-
-# Start Coordinator API
-echo "1. Starting Coordinator API (port 8000)..."
-cd apps/coordinator-api
-source ../.venv/bin/activate 2>/dev/null || python -m venv ../.venv && source ../.venv/bin/activate
-pip install -q -e . 2>/dev/null || true
-nohup python -m uvicorn src.app.main:app --host 0.0.0.0 --port 8000 > ../../logs/api.log 2>&1 &
-API_PID=$!
-echo "   PID: $API_PID"
-
-# Start Blockchain Node
-echo "2. Starting Blockchain Node (port 9080)..."
-cd ../blockchain-node
-nohup python -m uvicorn aitbc_chain.app:app --host 0.0.0.0 --port 9080 > ../../logs/blockchain.log 2>&1 &
-NODE_PID=$!
-echo "   PID: $NODE_PID"
-
-# Start Marketplace UI
-echo "3. Starting Marketplace UI (port 3001)..."
-cd ../marketplace-ui
-nohup python server.py --port 3001 > ../../logs/marketplace.log 2>&1 &
-MARKET_PID=$!
-echo "   PID: $MARKET_PID"
-
-# Start Trade Exchange
-echo "4. Starting Trade Exchange (port 3002)..."
-cd ../trade-exchange
-nohup python server.py --port 3002 > ../../logs/exchange.log 2>&1 &
-EXCHANGE_PID=$!
-echo "   PID: $EXCHANGE_PID"
-
-# Save PIDs for cleanup
-echo "$API_PID $NODE_PID $MARKET_PID $EXCHANGE_PID" > ../.service_pids
-
-cd ..
-
-# Wait for services to start
-echo ""
-echo "⏳ Waiting for services to initialize..."
-sleep 5
-
-# Test services
-echo ""
-echo "🧪 Testing Services..."
-
-echo -n "API Health: "
-if curl -s http://127.0.0.1:8000/v1/health > /dev/null; then
-    echo "✅ OK"
-else
-    echo "❌ Failed"
-fi
-
-echo -n "Admin API: "
-if curl -s http://127.0.0.1:8000/v1/admin/stats -H "X-Api-Key: ${ADMIN_API_KEY}" > /dev/null; then
-    echo "✅ OK"
-else
-    echo "❌ Failed"
-fi
-
-echo -n "Blockchain: "
-if curl -s http://127.0.0.1:9080/rpc/head > /dev/null; then
-    echo "✅ OK"
-else
-    echo "❌ Failed"
-fi
-
-echo -n "Marketplace: "
-if curl -s http://127.0.0.1:3001 > /dev/null; then
-    echo "✅ OK"
-else
-    echo "❌ Failed"
-fi
-
-echo -n "Exchange: "
-if curl -s http://127.0.0.1:3002 > /dev/null; then
-    echo "✅ OK"
-else
-    echo "❌ Failed"
-fi
-
-echo ""
-echo "✅ All services started!"
-echo ""
-echo "📋 Local URLs:"
-echo "   API: http://127.0.0.1:8000/v1"
-echo "   RPC: http://127.0.0.1:9080/rpc"
-echo "   Marketplace: http://127.0.0.1:3001"
-echo "   Exchange: http://127.0.0.1:3002"
-echo ""
-echo "🌐 Domain URLs (if nginx is configured):"
-echo "   API: https://aitbc.bubuit.net/api"
-echo "   Admin: https://aitbc.bubuit.net/admin"
-echo "   RPC: https://aitbc.bubuit.net/rpc"
-echo "   Marketplace: https://aitbc.bubuit.net/Marketplace"
-echo "   Exchange: https://aitbc.bubuit.net/Exchange"
-echo ""
-echo "📝 Logs: ./logs/"
-echo "🛑 Stop services: ./stop-services.sh"
-echo ""
-echo "Press Ctrl+C to stop monitoring (services will keep running)"
-
-# Monitor logs
-tail -f logs/*.log