v0.9.2 - model brand icons

What's Changed

• Added provider and model brand icons across model setup, model picker, settings, and stats surfaces.
• Rendered brand icons as monochrome glyphs so they match the surrounding UI tone.
• Bumped the default app image tag in compose.yml to 0.9.2.

Validation

• npm run lint -w apps/web
• npm run test -w apps/web
• npm run build -w apps/web
• GitHub Web E2E Smoke passed on PR #49, PR #50, main, and recreated dev.