Bug fixes, CLI updates, docs.

src/main.py

@@ -1,10 +1,51 @@
 #!/usr/bin/env python3
-"""Main entry point."""
+"""
+Stegasoo - Main Entry Point
+
+This module provides the main entry point for the stegasoo package.
+It can be run directly or via the installed console script.
+
+Usage:
+    python -m stegasoo --help
+    python src/main.py --help
+    stegasoo --help  (if installed via pip)
+"""
+
+import sys
 
 
 def main():
-    """Main function."""
-    print("Hello, World!")
+    """
+    Main entry point for Stegasoo CLI.
+    
+    Delegates to the CLI module for command parsing and execution.
+    """
+    try:
+        from stegasoo.cli import main as cli_main
+        cli_main()
+    except ImportError as e:
+        # Provide helpful error if dependencies are missing
+        print(f"Error: Could not import stegasoo package: {e}", file=sys.stderr)
+        print("\nMake sure stegasoo is installed:", file=sys.stderr)
+        print("  pip install -e .", file=sys.stderr)
+        print("\nOr run from the src directory:", file=sys.stderr)
+        print("  PYTHONPATH=src python -m stegasoo", file=sys.stderr)
+        sys.exit(1)
+    except KeyboardInterrupt:
+        print("\nInterrupted.", file=sys.stderr)
+        sys.exit(130)
+    except Exception as e:
+        print(f"Error: {e}", file=sys.stderr)
+        sys.exit(1)
+
+
+def version():
+    """Print version and exit."""
+    try:
+        from stegasoo import __version__
+        print(f"stegasoo {__version__}")
+    except ImportError:
+        print("stegasoo (version unknown)")
 
 
 if __name__ == "__main__":