Refactor OpenAI client initialization to use hardcoded base URL and API key; simplify generate_llm function by removing model parameter.

polLLM.py

@@ -25,8 +25,8 @@ _CHAR              = _config.get("char", "Eve")
 
 # --- OpenAI client init ---
 client = OpenAI(
-    base_url    = os.getenv("OPENAI_BASE_URL", "https://text.pollinations.ai/openai"),
-    api_key     = os.getenv("OPENAI_API_KEY", "")
+    base_url    = "https://text.pollinations.ai/openai",
+    api_key     = "OPENAI_API_KEY"
 )
 
 def _build_system_prompt() -> str:
@@ -37,13 +37,12 @@ def _build_system_prompt() -> str:
 
 def generate_llm(
     prompt: str,
-    model: str = None,
 ) -> str:
     """
     Send a chat-completion request to the LLM, with retries and backoff.
     Reads defaults from config.yaml, but can be overridden per-call.
     """
-    model       = model or _DEFAULT_MODEL
+    model       = _DEFAULT_MODEL
     system_prompt = _build_system_prompt()
     messages = [
         {"role": "system", "content": system_prompt},