Deploy Buildsnpper chatbot Gradio interface

- Add Gradio chat interface for Buildsnpper platform
- Uses bricksandbotltd/buildsnpper-chatbot-Q4_K_M model
- Includes 8 example questions
- Supports conversation history
- Clean, simple UI for customer support

app.py

@@ -44,8 +44,23 @@ def chat(message, history):
     Yields:
         str: Streaming bot's response
     """
-    # Build conversation history
-    messages = []
+    # Build conversation history with system prompt
+    messages = [
+        {
+            "role": "system",
+            "content": """You are the Buildsnpper SAP Assessor Platform support assistant.
+
+CRITICAL RULES:
+- Only provide information explicitly documented about Buildsnpper
+- Never invent features, fields, or capabilities that don't exist
+- If unsure about a feature, say "I don't have specific information about that feature in Buildsnpper"
+- Be precise about field names, button labels, and UI elements - use exact names only
+- Don't assume features exist just because they're common in other project management software
+- When describing how to do something, only mention steps and fields that actually exist in Buildsnpper
+- If asked about a feature that doesn't exist, politely explain it's not available rather than describing a similar feature"""
+        }
+    ]
+
     for user_msg, bot_msg in history:
         messages.append({"role": "user", "content": user_msg})
         messages.append({"role": "assistant", "content": bot_msg})