refac: search query task

backend/config.py

@@ -618,6 +618,18 @@ ADMIN_EMAIL = PersistentConfig(
 )
 
 
+TASK_MODEL = PersistentConfig(
+    "TASK_MODEL",
+    "task.model.default",
+    os.environ.get("TASK_MODEL", ""),
+)
+
+TASK_MODEL_EXTERNAL = PersistentConfig(
+    "TASK_MODEL_EXTERNAL",
+    "task.model.external",
+    os.environ.get("TASK_MODEL_EXTERNAL", ""),
+)
+
 TITLE_GENERATION_PROMPT_TEMPLATE = PersistentConfig(
     "TITLE_GENERATION_PROMPT_TEMPLATE",
     "task.title.prompt_template",
@@ -639,6 +651,19 @@ Artificial Intelligence in Healthcare
 )
 
 
+SEARCH_QUERY_GENERATION_PROMPT_TEMPLATE = PersistentConfig(
+    "SEARCH_QUERY_GENERATION_PROMPT_TEMPLATE",
+    "task.search.prompt_template",
+    os.environ.get(
+        "SEARCH_QUERY_GENERATION_PROMPT_TEMPLATE",
+        """You are tasked with generating web search queries. Give me an appropriate query to answer my question for google search. Answer with only the query. Today is {{CURRENT_DATE}}.
+        
+Question:
+{{prompt:end:4000}}""",
+    ),
+)
+
+
 ####################################
 # WEBUI_SECRET_KEY
 ####################################