ci: add service host discovery and strict policy docs validation

- Add multi-candidate host discovery (localhost, host.docker.internal, gateway) in api-endpoint-tests
- Pass discovered service host via AITBC_API_HOST environment variable to test script
- Update test_api_endpoints.py to use AITBC_API_HOST for all service URLs
- Add validate-policies-strict job to docs-validation workflow for policy Markdown files
- Add job names to package-tests matrix for better CI output clarity
- Add --import

cli/utils/__init__.py

@@ -242,6 +242,11 @@ def success(message: str):
     console.print(Panel(f"[green]{message}[/green]", title="✅"))
 
 
+def info(message: str):
+    """Print informational message"""
+    console.print(Panel(f"[cyan]{message}[/cyan]", title="ℹ️"))
+
+
 def warning(message: str):
     """Print warning message"""
     console.print(Panel(f"[yellow]{message}[/yellow]", title="⚠️"))