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SnapOtterandGitHub
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Make on-demand AI feature-bundle installs reliable and self-healing, closing the failure modes behind most "some tool doesn't work" reports. Multi-bundle installs: tools needing more than one bundle (Passport Photo, Enhance Faces) install every required bundle from one action and stay not-installed until all are present. Verified across all 19 AI tools. Downloads: self-heal the accelerated Hugging Face (Xet) client so an upgraded venv no longer silently falls back to slow urllib; restart instead of corrupting a resumed partial when a proxy ignores Range and returns 200; verify the completed size; fail fast on disk-full and HTTP 4xx; retry transient errors five times; add hf_transfer fallback and document Xet egress. Install integrity: crash-atomic venv writes so a killed or out-of-space install can no longer tear the shared venv and break other tools; a boot breadcrumb reseeds a torn venv to a clean state automatically; a post-install smoke import test refuses to record a bundle whose libraries cannot load; an install watchdog stops a wedged installer that would otherwise hold the venv writer lock forever. Adds unit and end-to-end tests for every failure mode above.