Bug: reasoning_effort sent to Groq API for models with reasoning: true, causing 400 error

When a Groq-hosted model has reasoning: true in its model config, Pi incorrectly sends a reasoning_effort parameter to Groq's API. Groq's API rejects this with a 400 error: ``` Error: 400 'reasoning_effort' : value is not one of the allowed values ['none','default','low','medium','high'] ``` Root Cause: In detectCompat(), the supportsReasoningEffort flag is set as: ```js supportsReasoningEffort: !isGrok && !isZai, ``` isGroq is correctly detected but not excluded from supportsReasoningEffort. This causes Pi to send its internal reasoning effort values (e.g. minimal, xhigh) to Groq, which doesn't accept them. Fix: ```js // Before: supportsReasoningEffort: !isGrok && !isZai, // After: supportsReasoningEffort: !isGrok && !isZai && !isGroq, ``` Workaround (for users): Press Shift+Tab to cycle thinking level to off before using Groq models. File: node_modules/@mariozechner/pi-ai/dist/providers/openai-completions.js