- Register IAmazonS3 as a singleton instead of scoped: the AWS SDK client is
thread-safe and manages its own connection pool, so one instance per DI scope
(per request / per job iteration) was wasteful and risked socket exhaustion
- AudioTranscoderService: start reading stdout/stderr before writing stdin to
remove the latent pipe-buffer deadlock shape
- Dispose the resized-picture MemoryStream in ResizePictureActivity
- Background jobs use PeriodicTimer instead of while + Task.Delay
Verified: Worker boots against RabbitMQ + Postgres in Docker with no captive-
dependency error (dev scope validation) and both jobs start.
Build: 0 warnings, 0 errors.
Fix (recoverability bug):
- TransferFilesToBucketActivity returned Completed() with no log, so its
compensation could never delete the transferred files (orphaned objects on
fault). IStorageService.TransferFilesAsync now returns the real uploaded
keys; the activity logs them so Compensate can remove them. Also drops the
Path.Combine key recomputation (produced backslash keys on Windows).
Consistency / DRY:
- Normalize all courier activities to internal + folder-based namespaces
(several were public and in the flat .Activities namespace)
- Extract the duplicated exponential retry into UseStandardRetry
- Unify endpoint-name logic into a single EndpointHelper (remove the parallel
MassTransitEndpointNames helper)
Build: 0 warnings, 0 errors.
- Move all .NET (6 projects, solution, Directory.*.props, nuget.config)
into backend/ so the monorepo root can host non-.NET projects later
- Remove throwaway test artifacts: player.html, pl.json
- Trim dead Flutter rules from .gitignore
Build from backend/Musify.slnx: 0 warnings, 0 errors.
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