feat: template-based prompt rendering with dynamic namespace injection (#2091)

* feat: template-based prompt rendering with dynamic namespace injection

* refactor: improve template engine initialization with clearer formatting

* refactor: streamline ReActAgent methods and improve content extraction logic

feat: enhance error handling in NamespaceManager and TemplateEngine

fix: update NewAgent component to ensure consistent form data submission

test: modify tests for ReActAgent and prompt renderer to reflect method changes and improve coverage

* feat: tools namespace + three-tier token budget

* refactor: remove unused variable assignment in message building tests

* Enhance prompt customization and tool pre-fetching functionality

* ruff lint fix

* refactor: cleaner error handling and reduce code clutter

---------

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

application/llm/base.py

@@ -44,6 +44,12 @@ class BaseLLM(ABC):
                 )
         return self._fallback_llm
 
+    @staticmethod
+    def _remove_null_values(args_dict):
+        if not isinstance(args_dict, dict):
+            return args_dict
+        return {k: v for k, v in args_dict.items() if v is not None}
+
     def _execute_with_fallback(
         self, method_name: str, decorators: list, *args, **kwargs
     ):