chore: remove configuration files and enhance blockchain explorer with advanced search, analytics, and export features

- Delete .aitbc.yaml.example CLI configuration template
- Delete .lycheeignore link checker exclusion rules
- Delete .nvmrc Node.js version specification
- Add advanced search panel with filters for address, amount range, transaction type, time range, and validator
- Add analytics dashboard with transaction volume, active addresses, and block time metrics
- Add Chart.js integration

cli/debian/etc/aitbc/config.yaml

@@ -0,0 +1,29 @@
+# AITBC CLI Configuration File
+# Default configuration for AITBC CLI
+
+# Coordinator API settings
+coordinator_url: http://localhost:8000
+api_key: null
+
+# Output settings
+output_format: table
+timeout: 30
+
+# Logging
+log_level: INFO
+
+# Wallet settings
+default_wallet: default
+wallet_dir: ~/.aitbc/wallets
+
+# Blockchain settings
+chain_id: mainnet
+
+# Marketplace settings
+default_region: localhost
+
+# Analytics settings
+analytics_enabled: true
+
+# Security settings
+verify_ssl: true

cli/debian/etc/bash_completion.d/aitbc

@@ -0,0 +1,2 @@
+# AITBC CLI bash completion
+source /usr/share/aitbc/completion/aitbc_completion.sh