Rename project from SmartTools to CmdForge

Major rename operation:
- Rename Python package: smarttools -> cmdforge
- Update CLI entry point: smarttools -> cmdforge
- Update all imports and module references
- Update pyproject.toml with new name, URLs, entry point
- Update all HTML templates with new branding
- Update documentation (CLAUDE.md, README.md, docs/*, wiki/*)
- Update environment variables:
  - SMARTTOOLS_ENV -> CMDFORGE_ENV
  - SMARTTOOLS_REGISTRY_DB -> CMDFORGE_REGISTRY_DB
  - SMARTTOOLS_TOKEN -> CMDFORGE_TOKEN
  - SMARTTOOLS_REGISTRY_* -> CMDFORGE_REGISTRY_*
- Update Dockerfile and docker-compose.yml
- Update tests to use new package name
- Update scripts and examples
- Update package.json and tailwind.config.js

All 158 unit tests pass. The CLI is working correctly with the
new cmdforge command.

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

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

src/cmdforge/web/templates/errors/500.html

@@ -0,0 +1,27 @@
+{% extends "base.html" %}
+
+{% block title %}Server Error - CmdForge{% endblock %}
+
+{% block content %}
+<div class="min-h-[60vh] flex items-center justify-center px-4">
+    <div class="text-center max-w-md">
+        <p class="text-6xl font-bold text-red-600">500</p>
+        <h1 class="mt-4 text-3xl font-bold text-gray-900">Something went wrong</h1>
+        <p class="mt-4 text-gray-600">
+            We're sorry, but something went wrong on our end. Please try again later or contact support if the problem persists.
+        </p>
+        <div class="mt-8 flex flex-col sm:flex-row items-center justify-center gap-4">
+            <a href="{{ url_for('web.home') }}"
+               class="w-full sm:w-auto inline-flex justify-center items-center px-6 py-3 text-base font-medium text-white bg-indigo-600 rounded-md hover:bg-indigo-700">
+                Go Home
+            </a>
+            <a href="https://github.com/your-org/cmdforge/issues"
+               target="_blank"
+               rel="noopener noreferrer"
+               class="w-full sm:w-auto inline-flex justify-center items-center px-6 py-3 text-base font-medium text-gray-700 border border-gray-300 rounded-md hover:bg-gray-50">
+                Report Issue
+            </a>
+        </div>
+    </div>
+</div>
+{% endblock %}