feat: enhance logging and error handling across various tools; update DuckDuckGo dependency (#2282)

Co-authored-by: Alex <a@tushynski.me>

application/error.py

@@ -13,3 +13,25 @@ def response_error(code_status, message=None):
 
 def bad_request(status_code=400, message=''):
     return response_error(code_status=status_code, message=message)
+
+
+def sanitize_api_error(error) -> str:
+    """
+    Convert technical API errors to user-friendly messages.
+    Works with both Exception objects and error message strings.
+    """
+    error_str = str(error).lower()
+    if "503" in error_str or "unavailable" in error_str or "high demand" in error_str:
+        return "The AI service is temporarily unavailable due to high demand. Please try again in a moment."
+    if "429" in error_str or "rate limit" in error_str or "quota" in error_str:
+        return "Rate limit exceeded. Please wait a moment before trying again."
+    if "401" in error_str or "unauthorized" in error_str or "invalid api key" in error_str:
+        return "Authentication error. Please check your API configuration."
+    if "timeout" in error_str or "timed out" in error_str:
+        return "The request timed out. Please try again."
+    if "connection" in error_str or "network" in error_str:
+        return "Network error. Please check your connection and try again."
+    original = str(error)
+    if len(original) > 200 or "{" in original or "traceback" in error_str:
+        return "An error occurred while processing your request. Please try again later."
+    return original