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

cli/tests/api/test_blockchain_commands_full_table.py

@@ -0,0 +1,46 @@
+import subprocess
+import os
+import re
+
+def run_cmd(cmd):
+    print(f"Running: {' '.join(cmd)}")
+    env = os.environ.copy()
+    
+    result = subprocess.run(
+        cmd,
+        capture_output=True,
+        text=True,
+        env=env
+    )
+    
+    # Strip ANSI escape sequences
+    ansi_escape = re.compile(r'\x1B(?:[@-Z\\-_]|\[[0-?]*[ -/]*[@-~])')
+    clean_stdout = ansi_escape.sub('', result.stdout).strip()
+    
+    print(f"Exit code: {result.returncode}")
+    print(f"Output:\n{clean_stdout}")
+    if result.stderr:
+        print(f"Stderr:\n{result.stderr.strip()}")
+    print("-" * 40)
+
+print("=== NEW BLOCKCHAIN API TESTS (TABLE OUTPUT) ===")
+
+base_cmd = ["/home/oib/windsurf/aitbc/cli/venv/bin/aitbc", "--url", "http://10.1.223.93:8000/v1", "--api-key", "client_dev_key_1", "--output", "table"]
+
+print("\n--- faucet (minting devnet funds to alice) ---")
+run_cmd(base_cmd + ["blockchain", "faucet", "--address", "alice", "--amount", "5000000000"])
+
+print("\n--- balance (checking alice's balance) ---")
+run_cmd(base_cmd + ["blockchain", "balance", "--address", "alice"])
+
+print("\n--- genesis ---")
+run_cmd(base_cmd + ["blockchain", "genesis", "--chain-id", "ait-devnet"])
+
+print("\n--- transactions ---")
+run_cmd(base_cmd + ["blockchain", "transactions", "--chain-id", "ait-devnet"])
+
+print("\n--- head ---")
+run_cmd(base_cmd + ["blockchain", "head", "--chain-id", "ait-testnet"])
+
+print("\n--- send (alice sending devnet funds to bob) ---")
+run_cmd(base_cmd + ["blockchain", "send", "--chain-id", "ait-devnet", "--from", "alice", "--to", "bob", "--data", "test", "--nonce", "1"])