Fix f-string syntax error with backslash escaping

- Moved content escaping outside f-string to avoid syntax error
- Properly escape backslashes, backticks, and dollar signs for JavaScript
- Fixes runtime SyntaxError in Hugging Face Space

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

Co-Authored-By: Claude <noreply@anthropic.com>

app.py

@@ -54,6 +54,9 @@ def create_command_card(command):
                 description = line.strip()
                 break
 
+    # Escape content for JavaScript - replace backticks and backslashes
+    escaped_content = content.replace('\\', '\\\\').replace('`', '\\`').replace('$', '\\$')
+
     card_html = f"""
     <div style="border: 1px solid #ddd; border-radius: 8px; padding: 16px; margin: 10px 0; background: white;">
         <div style="display: flex; justify-content: space-between; align-items: start;">
@@ -70,7 +73,7 @@ def create_command_card(command):
                 <pre style="margin: 0; white-space: pre-wrap; font-size: 13px; line-height: 1.5;">{content}</pre>
             </div>
         </details>
-        <button onclick="navigator.clipboard.writeText(`{content.replace('`', '\\`')}`); this.innerText='Copied!'; setTimeout(() => this.innerText='Copy to Clipboard', 2000)"
+        <button onclick="navigator.clipboard.writeText(`{escaped_content}`); this.innerText='Copied!'; setTimeout(() => this.innerText='Copy to Clipboard', 2000)"
                 style="background: #2563eb; color: white; border: none; padding: 8px 16px; border-radius: 4px; cursor: pointer; margin-top: 8px;">
             Copy to Clipboard
         </button>