fix: make vision_analyze timeout configurable via config.yaml (#2480)

Reads auxiliary.vision.timeout from config.yaml (default: 30s) and
passes it to async_call_llm. Useful for slow local vision models
that need more than 30 seconds.

Setting is in config.yaml (not .env) since it's not a secret:

  auxiliary:
    vision:
      timeout: 120

Based on PR #2306.

Co-authored-by: kshitijk4poor <kshitijk4poor@users.noreply.github.com>

hermes_cli/config.py

@@ -182,6 +182,7 @@ DEFAULT_CONFIG = {
             "model": "",           # e.g. "google/gemini-2.5-flash", "gpt-4o"
             "base_url": "",        # direct OpenAI-compatible endpoint (takes precedence over provider)
             "api_key": "",         # API key for base_url (falls back to OPENAI_API_KEY)
+            "timeout": 30,         # seconds — increase for slow local vision models
         },
         "web_extract": {
             "provider": "auto",