Provider instance icons PR evidence

Before/after evidence for the per-instance provider icons contribution from feat/provider-instance-icons.

• Before: upstream base 0637f876fc65.
• After: feature commit 070c3c887359623eceabd83a2fd1b35aafe98041.
• Captured through T3 Code's Browser panel using isolated development state and demo provider instances. Providers remain disabled; no provider turns were run.

These are review images, not application binaries or an installable release.