fix: update setup/config UI for local browser mode

- tools_config.py: Add 'Local Browser' as first provider option
  (no API keys needed, same npm install for agent-browser)
- setup.py: Show 'Browser Automation (local)' when agent-browser
  CLI is found but no Browserbase key is set
- config.py: Mark BROWSERBASE_* descriptions as optional
- status.py: Note that local browser works without Browserbase

hermes_cli/status.py

@@ -84,7 +84,7 @@ def show_status(args):
         "MiniMax": "MINIMAX_API_KEY",
         "MiniMax-CN": "MINIMAX_CN_API_KEY",
         "Firecrawl": "FIRECRAWL_API_KEY",
-        "Browserbase": "BROWSERBASE_API_KEY",
+        "Browserbase": "BROWSERBASE_API_KEY",  # Optional — local browser works without this
         "FAL": "FAL_KEY",
         "Tinker": "TINKER_API_KEY",
         "WandB": "WANDB_API_KEY",