Add `unarr vpn` (status/enable/disable, with `status --check`) to manage the
managed WireGuard split-tunnel from the CLI. The daemon now reports its
split-tunnel state (active, mode, exit server) to the web on register and on
every sync, and sends its agent id when fetching the VPN config so the web can
arbitrate the single WireGuard slot (1 VPNResellers account = 1 WG keypair = 1
concurrent connection): the first agent claims it; the rest are told to run
OpenVPN on their own host (1 WireGuard + up to 9 OpenVPN = 10).
`status --check` passes probe=1 so it validates provisioning without claiming
the slot. VPNActive drops omitempty so a downed tunnel reaches the server and
frees the slot. Bumps to 0.9.2 with CHANGELOG + README VPN section.
- task.go: fix deadlock in ToStatusUpdate() — calling Percent() (which
RLocks) while already holding RLock caused deadlock when a writer was
waiting; compute percent inline instead
- usenet.go: fix data race in Cancel() — tracker and taskDir were read
without the mutex while Download() writes them under it; read all
fields under the same lock
- upnp.go: fix UPnP Remove() blocking shutdown — run cleanup in goroutine
with 10s deadline (removeNATPMP worst case is 3s dial + 5s deadline)
- daemon.go: add path traversal protection for stream requests — validate
sr.FilePath is within configured directories before os.Stat; defends
against compromised API server sending arbitrary paths
- client.go: add wakeClient without timeout for long-poll wake endpoint
where context controls cancellation
- sync.go: trigger immediate sync when entering watching mode so stream
requests are picked up without waiting for the next scheduled interval
Replace the WebSocket + Cloudflare Durable Object architecture with a
single POST /sync endpoint. The CLI now operates autonomously with local
state (tasks.json) and syncs bidirectionally via adaptive-interval HTTP
polling (3s watching, 60s idle).
- Remove transport_ws, transport_hybrid, transport_http (~2,600 lines)
- Add SyncClient with adaptive interval loop
- Add LocalState for CLI-side task persistence
- Add TaskStateFromUpdate() helper (DRY)
- Extract finalize() to deduplicate processTask/processTaskRetry
- Consolidate shortID() into agent.ShortID (was in 3 packages)
- Wire GetActiveCount so `unarr status` shows active tasks
- Remove poll_interval, heartbeat_interval, ws_url from config
- Simplify ProgressReporter (sync replaces direct HTTP reporting)
