Two robustness fixes behind the recurring "folder upload stuck at ~93%" reports.
1. Skip non-regular files up front. A copied s6/runit service tree contains
FIFOs (e.g. supervise/control named pipes) that report a size but BLOCK
FOREVER when the browser reads them — the deterministic ~8-files-short that
no retry/watchdog tweak could fix. uploadBatch/uploadTree now probe each
file's first chunk against a 3 s timeout (partitionReadable), upload only the
readable ones, and report the rest: "N uploaded · M skipped (not regular
files)". Progress runs over the uploadable count, so it reaches 100% instead
of parking at 93% while a lane hangs on a pipe.
2. Auto-reload on a new deploy. svelte.config.js polls _app/version.json
(60 s); the root layout reloads itself when the deployed build changes —
unless an upload is in flight — so an open tab can't keep running stale code
after a rebuild (the recurring "my fix isn't applied" trap).
npm run check: 0 errors, 58 tests pass.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>