feat(marketplace): ux improvements and per-file model checksums #185

Job	Run time
Skit / Test	9m 13s
UI / Lint (TypeScript + ESLint)	38s
Skit / Lint (fmt + clippy)	4m 28s
E2E / Playwright E2E	5m 3s
Plugins / Lint (Simple Plugins)	39s
UI / Build	31s
UI / Test	19s
Skit / Build	13m 0s
Plugins / Lint (NLLB)	2m 26s
Plugins / Format Check	19s
Plugins / Lint (Sherpa-ONNX Plugins)	57s
Plugins / Lint (Whisper)	37s
All Checks Passed	2s
	38m 12s

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