fix(miniapp): sync marketplace installs and render icons

[bobleer]

Summary

• render marketplace MiniApp icon identifiers with the same allowlisted Lucide icons as the desktop gallery, with a safe fallback
• immediately upsert installed or updated marketplace apps into the shared desktop catalog so installed cards and tab labels use the app metadata
• emit the standard miniapp-created / miniapp-updated lifecycle events after an atomic marketplace install or update
• document and test the standalone market icon resolver

Verification

• pnpm run test:miniapp-market
• pnpm run type-check:miniapp-market
• pnpm run build:miniapp-market
• pnpm run type-check:web
• pnpm run lint:web
• pnpm --dir src/web-ui run test:run src/app/scenes/miniapps/miniAppStore.test.ts
• cargo check -p bitfun-desktop
• cargo test -p bitfun-desktop
• pnpm run check:repo-hygiene