Dsh Effort Tweak

Key features

• Adds Settings → Reasoning effort to the DSH Web UI.
• Lists models explicitly configured in llm-pi-ai.providers.
• Lets you choose off, minimal, low, medium, high, xhigh, or max for one model at a time.
• Preserves the model's other fields and existing provider-specific wire values.
• Saves through DSH's settings service, so no manual configuration-file editing is needed.