Adds a per-job scratch directory under the new `paths.work` config (default
`./work`) so audio.<n>.wav, audio.<n>.opus and output.mkv no longer live
beside the user's sources in paths.input. The work subdir is named after
the input basename and unconditionally removed when processFile returns
(success or failure), which kills bug #4 (intermediates leaking into the
user-owned input folder; output.mkv getting re-picked by the 15-second
watcher tick on rename failure; fixed-name collision risk for any future
concurrency).
Tightens the failure paths in main.processFile too (bug #25):
- mover.MoveToFailed return values are now surfaced via a new
failToFailed helper.
- The helper os.Stats the source first; missing -> log and skip instead
of the previous silent no-op when MoveToFailed was called on
output.mkv before it existed.
- On rename-output failure, the source is now routed to paths.failed
(it was previously left in paths.input, causing an infinite re-encode
loop on the next watcher tick). The old MoveToFailed on the work-dir
output is dropped — the deferred RemoveAll covers it.
Mechanical changes:
- PathsConfig gains `Work string \`yaml:"work"\`` with default ./work,
included in EnsureDirs.
- Encoder.Transcode signature now takes workDir; extractAudio,
encodeOpus and encodeVideo all write into workDir. The internal
cleanupWavs/cleanupOpus defers are gone (RemoveAll in main is the
one cleanup path).
- MANUAL.md updated: example config, field reference, §6 pipeline
step wording, §9 failure handling description, §11 runtime
directories block.
Esa Kataja
706cd22b05