Keep upstream's reviewed catalog as the only plugin name index.
Catalog pins and custom update sources share staged PM validation.
Publish code and dependencies with recovery after process death.
Reject a concurrent enablement change before publishing disabled code.
Use the manifest loader's supported version in the installer. Keep
probe cooldowns for timeouts, not TLS failures that a CA change fixes.
Preserve the backup, uninstall, browser and memory-provider repairs.
Verified with the canonical runner on native Windows ARM64, real Git
repositories, local TLS endpoints and UV dependency generations.
Desktop catalog tests and both TypeScript checks pass. The full suite
and native release builds were not run. No remote push.
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