LanMountainDesktop/.trae/specs/pdc-incremental-migration/tasks.md

Tasks

• Remove VeloPack packaging from release workflow.
• Keep signed FileMap path as interim compatibility fallback.
• Remove launcher/runtime Velopack branching.
• Add phainon.yml for PDCC publish configuration.
• Add PDCC installation + publish steps in release.yml.
• Upload app payload artifacts for PDCC consumption in release build jobs.
• Publish PDC metadata + object repo to S3 path root lanmountain/update/.
• Mirror installers to lanmountain/update/installers/<platform>/<arch>/.
• Replace update source canonical value with stcn (keep legacy pdc compatibility).
• Add PDC payload model into host update check result.
• Add host download path for PDC payload (pdc-filemap.json + signature + metadata).
• Add launcher PDC FileMap apply path with rollback-compatible semantics.
• Keep old files.json + update.zip path behind compatibility fallback.