stagent v0.12.0

Added

• host_screen.list: on a host where stagent runs in Windows' WSL, the
  browser and android sections have note: {code: "wsl", message}
  (Section<T> gains note?), since the browsers and emulators on the
  Windows side are not visible from WSL (#675).
• Host screen: an Android emulator or iOS simulator that stops no longer
  ends the stream. After state: "gone" stagent looks for it every 3
  seconds and, once it runs again, connects anew and sends state: "live" and frames in the same tab: an emulator by its AVD on any
  serial (Target has avd; grpc.port and grpc.token read again),
  a simulator by its udid (its companion started again). start of
  one that is not running answers {} and sends gone, then waits the
  same way; so does an iOS start while simctl fails to list (a
  timeout, say), which was not_found. Only no Xcode is still
  not_found (#662).
• Host screen: host_screen.pause and host_screen.resume (no params,
  {}) stop and restart capturing while the app does not show the tab
  (another tab, the app in the background, the screen off; #634).
  pause drops the frame kept and stops the target's capture: a
  browser's Page.stopScreencast (its WebSocket stays open), an Android
  emulator's streamScreenshot cut, an iOS simulator's MJPEG video
  stream closed (the companion kept, asked describe every 5/3 s so it
  does not shut down idle). resume sends one full frame at once, then
  streams again. Like ack, both are answered at once, never behind a
  slow input; without a stream → bad_request; pause while paused
  and resume while not paused → {}. Acks are answered while paused
  (#651).

Changed

• host_screen.input on an Android emulator pastes every text, ASCII
  too (gRPC setClipboard, then KEYCODE_PASTE), instead of adb shell input text, which a Japanese Gboard typed as romaji to kana ("wifi
  test" became "ウィフぃてｓｔ"). enter alone sends only KEYCODE_ENTER
  and leaves the clipboard alone (#672).
• Host screen: an Android emulator's image with the same pixels as the
  last one is dropped before JPEG encoding, so a still display sends no
  frame (the emulator sends about 20 a second); an iOS simulator's MJPEG
  is quality 0.5 (was 0.7) at scale 0.5 and fps 0 (#662).
• Host screen: at most 10 frames a second are sent. A frame captured
  within 100 ms of the last one sent waits in the place that keeps the
  newest frame (the one used while two frames wait for their ack), and
  is sent once 100 ms passed (#651).

Fixed

• Host screen, Android: an emulator-<port> that adb devices shows
  offline without a discovery file (any process listening on an odd
  port of 5555–5585) is no longer listed as a no_grpc emulator, nor
  asked emu avd name (which held host_screen.list up ~2 s);
  host_screen.start finds no emulator there. Booting emulators (offline
  with a file) and ones without a file in the device state are still
  listed (#673).
• host_screen.list lists browsers on Linux (WSL too): Chromium writes
  its command line over its arguments as one space-joined string, so no
  browser's --remote-debugging-port / --remote-debugging-pipe was
  found and none was listed. Such a command line is now read for its
  executable and switches (split at --; a --user-data-dir with
  spaces is found, child processes with --type= are still left out);
  NUL-separated command lines read as before (#671).

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stagent 0.12.0 — server binary for SSH Term. Built from this tag (0eb7f98) with go1.27.1 via scripts/release.sh (reproducible: CGO_ENABLED=0, -trimpath, no VCS stamp, empty build id); verify downloads against SHA256SUMS.