feat(cli): stream — a film or a song played in a media player

`meshbay-cli stream PATH` serves one video or sound file over HTTP on
127.0.0.1 for VLC, mpv or any player that reads HTTP; `--player PROGRAM`
starts the player, and closing it stops the stream, as Ctrl+C does.

The file goes as the node stores it: no remux, no transcode, no stream
slot on the node. Byte ranges are answered from leaseless file_req chunks
decrypted in memory, eight ahead and the last 24 kept. Loopback only, a
random token in the address, a foreign Host refused (DNS rebinding), an
audio or video type with nosniff. The connection is pinged and reopened
when it dies; a refusal by the node stops the stream (exit 5).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 5 insertions, 4 deletions

diff --git a/packages/meshbay-cli/src/meshbay_cli/__main__.py b/packages/meshbay-cli/src/meshbay_cli/__main__.py
index 2a71c17..f5b002a 100644
--- a/packages/meshbay-cli/src/meshbay_cli/__main__.py
+++ b/packages/meshbay-cli/src/meshbay_cli/__main__.py
@@ -28,6 +28,7 @@ from .commands import (
     put,
     rm,
     search,
+    stream,
     trust,
 )
 from .commands.context import Context
@@ -35,8 +36,8 @@ from .errors import INTERRUPTED, USAGE, CliError
 
 ACTIONS = {"login": login, "logout": logout, "groups": groups, "invitations": invitations,
            "join": join, "decline": decline, "leave": leave, "ls": ls, "search": search, "get": get,
-           "put": put, "rm": rm, "chat": chat, "devices": devices, "trust": trust,
-           "browser-access": browser_access, "help": help}
+           "stream": stream, "put": put, "rm": rm, "chat": chat, "devices": devices,
+           "trust": trust, "browser-access": browser_access, "help": help}
 
 
 class _Parser(argparse.ArgumentParser):
@@ -142,8 +143,8 @@ def main(argv: list[str] | None = None) -> int:
 
 def _utf8_output() -> None:
     """Names are printed as they are; a Windows console's code page cannot hold most."""
-    for stream in (sys.stdout, sys.stderr):
-        reconfigure = getattr(stream, "reconfigure", None)
+    for out in (sys.stdout, sys.stderr):
+        reconfigure = getattr(out, "reconfigure", None)
         if reconfigure is not None:
             try:
                 reconfigure(encoding="utf-8", errors="replace")