security: add timeouts to HTTP requests and fix temp directory usage

- Add 30-second timeouts to all HTTP requests in enterprise_cli.py (5 instances)
- Add 30-second timeouts to all HTTP requests in miner_management.py (4 instances)
- Replace hardcoded /tmp with tempfile.gettempdir() in extended_features.py
- Fix requires-python constraint from ^3.13 to >=3.13 in aitbc-core
- Add missing dependencies: pynacl to aitbc-crypto, httpx to aitbc-sdk
- Add poetry packages configuration to aitbc-core pyproject.toml
- Add type

cli/aitbc_cli/utils/__init__.py

@@ -0,0 +1,30 @@
+"""
+CLI utility functions for output formatting and error handling
+"""
+
+from click import echo, secho
+
+
+def output(message: str, **kwargs):
+    """Print a regular output message"""
+    echo(message, **kwargs)
+
+
+def error(message: str, **kwargs):
+    """Print an error message in red"""
+    secho(message, fg="red", **kwargs)
+
+
+def success(message: str, **kwargs):
+    """Print a success message in green"""
+    secho(message, fg="green", **kwargs)
+
+
+def info(message: str, **kwargs):
+    """Print an info message in blue"""
+    secho(message, fg="blue", **kwargs)
+
+
+def warning(message: str, **kwargs):
+    """Print a warning message in yellow"""
+    secho(message, fg="yellow", **kwargs)