Update NUM_CTX default value to 32000

src/config.py

@@ -6,4 +6,4 @@ from typing import Final
 MODEL_NAME: Final[str] = os.getenv("OLLAMA_MODEL", "qwen3")
 OLLAMA_HOST: Final[str] = os.getenv("OLLAMA_HOST", "http://localhost:11434")
 MAX_TOOL_CALL_DEPTH: Final[int] = 5
-NUM_CTX: Final[int] = int(os.getenv("OLLAMA_NUM_CTX", "4096"))
+NUM_CTX: Final[int] = int(os.getenv("OLLAMA_NUM_CTX", "32000"))