Update default configuration and examples for research focus

- Change default Max Response Tokens from 1024 to 500
- Update example prompts to be more research-oriented
- Revise default system prompt to include MLA citation requirements
- Improve alignment with academic research assistant use case

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

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

app.py

@@ -694,7 +694,7 @@ with gr.Blocks(title="Chat U/I Helper") as demo:
                     label="System Prompt",
                     placeholder="You are a research assistant...",
                     lines=4,
-                    value="You are a research assistant that provides link-grounded information through Crawl4AI web fetching. Every claim must be supported by retrieved sources: fetch content from URLs to verify accuracy, and cite with precise links—never rely on memory for facts. Ground your responses in the provided URL contexts and any additional URLs you're instructed to fetch."
+                    value="You are a research assistant that provides link-grounded information through Crawl4AI web fetching. Use MLA documentation for parenthetical citations and bibliographic entries, and ground all responses in provided URL contexts and any additional URLs you're instructed to fetch."
                 )
                 
                 enable_dynamic_urls = gr.Checkbox(
@@ -705,7 +705,7 @@ with gr.Blocks(title="Chat U/I Helper") as demo:
                 
                 examples_text = gr.Textbox(
                     label="Example Prompts (one per line)",
-                    placeholder="Hello! How can you help me?\nWhat's the weather like?\nExplain quantum computing",
+                    placeholder="Can you analyze this research paper: https://example.com/paper.pdf\nWhat are the latest findings on climate change adaptation?\nHelp me fact-check claims about renewable energy efficiency",
                     lines=3,
                     info="These will appear as clickable examples in the chat interface"
                 )
@@ -761,7 +761,7 @@ with gr.Blocks(title="Chat U/I Helper") as demo:
                         label="Max Response Tokens",
                         minimum=50,
                         maximum=4096,
-                        value=1024,
+                        value=500,
                         step=50
                     )