Add Docker support and documentation updates

- Add Dockerfile for containerized builds
- Add .dockerignore for cleaner builds
- Add CLAUDE.md for development guidance
- Update README and docs

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <[email protected]>

src/smarttools/cli.py

@@ -263,6 +263,79 @@ def cmd_refresh(args):
     return 0
 
 
+def cmd_docs(args):
+    """View or edit tool documentation."""
+    import os
+    import subprocess
+
+    from .tool import get_tools_dir
+
+    tool = load_tool(args.name)
+    if not tool:
+        print(f"Error: Tool '{args.name}' not found.")
+        return 1
+
+    readme_path = get_tools_dir() / args.name / "README.md"
+
+    if args.edit:
+        # Edit/create README
+        editor = os.environ.get("EDITOR", "nano")
+
+        # Create a template if README doesn't exist
+        if not readme_path.exists():
+            template = f"""# {args.name}
+
+{tool.description or 'No description provided.'}
+
+## Usage
+
+```bash
+echo "input" | {args.name}
+```
+
+## Arguments
+
+| Flag | Default | Description |
+|------|---------|-------------|
+"""
+            for arg in tool.arguments:
+                template += f"| `{arg.flag}` | {arg.default or ''} | {arg.description or ''} |\n"
+
+            template += """
+## Examples
+
+```bash
+# Example 1
+```
+
+## Requirements
+
+- List any dependencies here
+"""
+            readme_path.write_text(template)
+            print(f"Created template: {readme_path}")
+
+        try:
+            subprocess.run([editor, str(readme_path)], check=True)
+            print(f"Documentation updated: {readme_path}")
+            return 0
+        except subprocess.CalledProcessError:
+            print("Error: Editor failed.")
+            return 1
+        except FileNotFoundError:
+            print(f"Error: Editor '{editor}' not found. Set $EDITOR environment variable.")
+            return 1
+    else:
+        # View README
+        if not readme_path.exists():
+            print(f"No documentation found for '{args.name}'.")
+            print(f"Create it with: smarttools docs {args.name} --edit")
+            return 1
+
+        print(readme_path.read_text())
+        return 0
+
+
 def main():
     """Main CLI entry point."""
     parser = argparse.ArgumentParser(
@@ -326,6 +399,12 @@ def main():
     p_refresh = subparsers.add_parser("refresh", help="Refresh all wrapper scripts")
     p_refresh.set_defaults(func=cmd_refresh)
 
+    # 'docs' command
+    p_docs = subparsers.add_parser("docs", help="View or edit tool documentation")
+    p_docs.add_argument("name", help="Tool name")
+    p_docs.add_argument("-e", "--edit", action="store_true", help="Edit/create README in $EDITOR")
+    p_docs.set_defaults(func=cmd_docs)
+
     args = parser.parse_args()
 
     # If no command, launch UI