refactor: update default values in agent and browser settings tabs to use environment variables

src/webui/components/agent_settings_tab.py

@@ -64,14 +64,14 @@ def create_agent_settings_tab(webui_manager: WebuiManager):
             llm_provider = gr.Dropdown(
                 choices=[provider for provider, model in config.model_names.items()],
                 label="LLM Provider",
-                value="openai",
+                value=os.getenv("DEFAULT_LLM", "openai"),
                 info="Select LLM provider for LLM",
                 interactive=True
             )
             llm_model_name = gr.Dropdown(
                 label="LLM Model Name",
-                choices=config.model_names['openai'],
-                value="gpt-4o",
+                choices=config.model_names[os.getenv("DEFAULT_LLM", "openai")],
+                value=config.model_names[os.getenv("DEFAULT_LLM", "openai")][0],
                 interactive=True,
                 allow_custom_value=True,
                 info="Select a model in the dropdown options or directly type a custom model name"

src/webui/components/browser_settings_tab.py

@@ -1,5 +1,5 @@
 import os
-
+from distutils.util import strtobool
 import gradio as gr
 import logging
 from gradio.components import Component
@@ -52,13 +52,13 @@ def create_browser_settings_tab(webui_manager: WebuiManager):
         with gr.Row():
             use_own_browser = gr.Checkbox(
                 label="Use Own Browser",
-                value=False,
+                value=bool(strtobool(os.getenv("USE_OWN_BROWSER", "false"))),
                 info="Use your existing browser instance",
                 interactive=True
             )
             keep_browser_open = gr.Checkbox(
                 label="Keep Browser Open",
-                value=os.getenv("KEEP_BROWSER_OPEN", True),
+                value=bool(strtobool(os.getenv("KEEP_BROWSER_OPEN", "true"))),
                 info="Keep Browser Open between Tasks",
                 interactive=True
             )