Using qwen3:30b explicitly. The default "qwen3" from ollama was pulling
a very outdated model apparently (qwen3:8b). qwen3:4b and qwen3:30b are the newest.
Also sets up some defaults for gptel that have been useful
Integrate gptel-tool-library by:
- Adding package definition to packages.el with custom recipe
- Configuring library settings and module loading in config.el
- Enabling module-specific functionality for bbdb, buffer, etc.
