fix: remove /v1 prefix from agent API endpoints and resolve variable naming conflicts

- Update all agent command endpoints to remove /v1 prefix for API consistency
- Rename `success` variable to `is_success` in chain.py to avoid conflict with success() function
- Rename `output` parameter to `output_file` in genesis.py for clarity
- Add admin command help tests to verify command structure
- Update blockchain status endpoint from /status to /v1/health in tests
- Mark admin help command as working

run_test.py

@@ -0,0 +1,15 @@
+from click.testing import CliRunner
+from aitbc_cli.commands.wallet import wallet
+import pathlib
+import json
+
+runner = CliRunner()
+mock_wallet_dir = pathlib.Path("/tmp/test_wallet_dir_qwe")
+mock_wallet_dir.mkdir(parents=True, exist_ok=True)
+wallet_file = mock_wallet_dir / "test_wallet.json"
+with open(wallet_file, "w") as f:
+    json.dump({"test": "data"}, f)
+
+result = runner.invoke(wallet, ['delete', 'test_wallet', '--confirm'], obj={"wallet_dir": mock_wallet_dir, "output_format": "json"})
+print(f"Exit code: {result.exit_code}")
+print(f"Output: {result.output}")