feat: brave search llm context

backend/open_webui/main.py

@@ -345,6 +345,7 @@ from open_webui.config import (
     BING_SEARCH_V7_ENDPOINT,
     BING_SEARCH_V7_SUBSCRIPTION_KEY,
     BRAVE_SEARCH_API_KEY,
+    BRAVE_SEARCH_CONTEXT_TOKENS,
     EXA_API_KEY,
     PERPLEXITY_API_KEY,
     PERPLEXITY_MODEL,
@@ -1108,6 +1109,7 @@ app.state.config.YACY_PASSWORD = YACY_PASSWORD
 app.state.config.GOOGLE_PSE_API_KEY = GOOGLE_PSE_API_KEY
 app.state.config.GOOGLE_PSE_ENGINE_ID = GOOGLE_PSE_ENGINE_ID
 app.state.config.BRAVE_SEARCH_API_KEY = BRAVE_SEARCH_API_KEY
+app.state.config.BRAVE_SEARCH_CONTEXT_TOKENS = BRAVE_SEARCH_CONTEXT_TOKENS
 app.state.config.KAGI_SEARCH_API_KEY = KAGI_SEARCH_API_KEY
 app.state.config.MOJEEK_SEARCH_API_KEY = MOJEEK_SEARCH_API_KEY
 app.state.config.BOCHA_SEARCH_API_KEY = BOCHA_SEARCH_API_KEY