v0.1.24 — restore synth-recovery insurance for judge===synth

Fixed

• Synth-recovery fallback works again when judge === synth. v0.1.23 made glm-5.2 both judge and synth for fusion-coder, and the recovery fallback (judge !== synth ? judge : null) silently lost its cross-model insurance — an empty synth answer had no second model to recover on. The fallback now picks the first PANEL member that differs from the synth in that case. Stale "kimi is the fusion-coder synth" wording in docs/claude-code.md and the fusion-claude launcher comment updated to the post-v0.1.23 reality.