refactor: consolidate blockchain explorer into single app and update backup ignore patterns

- Remove standalone explorer-web app (README, HTML, package files)
- Add /web endpoint to blockchain-explorer for web interface access
- Update .gitignore to exclude application backup archives (*.tar.gz, *.zip)
- Add backup documentation files to .gitignore (BACKUP_INDEX.md, README.md)
- Consolidate explorer functionality into main blockchain-explorer application

dev/cli/test-cli-staging.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+
+# CLI Staging Test Script
+echo "=== CLI Staging Test ==="
+echo "Date: $(date)"
+echo ""
+
+# Start mock server in background
+echo "Starting CLI Mock Server..."
+python3 /home/oib/windsurf/aitbc/cli-dev/mock-cli-server.py &
+MOCK_PID=$!
+sleep 3
+
+# Test CLI with staging configuration
+echo "1. Testing CLI with Mock Server:"
+aitbc --config-file /home/oib/windsurf/aitbc/cli-dev/cli-staging-config.yaml test api
+echo ""
+
+echo "2. Testing CLI Marketplace with Mock:"
+aitbc --config-file /home/oib/windsurf/aitbc/cli-dev/cli-staging-config.yaml marketplace gpu list
+echo ""
+
+echo "3. Testing CLI Agents with Mock:"
+aitbc --config-file /home/oib/windsurf/aitbc/cli-dev/cli-staging-config.yaml agent list
+echo ""
+
+echo "4. Testing CLI Blockchain with Mock:"
+aitbc --config-file /home/oib/windsurf/aitbc/cli-dev/cli-staging-config.yaml blockchain status
+echo ""
+
+# Clean up
+echo "Stopping Mock Server..."
+kill $MOCK_PID 2>/dev/null
+wait $MOCK_PID 2>/dev/null
+
+echo "=== CLI Staging Test Complete ==="