Parallel agent work: bandwidth fix, CPU platforms, packaging

5 agents ran in parallel:

1. Fix bandwidth limit (-b): new advance_next_send() prevents drift
   bursts by resetting when >2x interval behind (bandwidth.rs, client.rs, server.rs)

2. Windows + FreeBSD CPU support (cpu.rs):
   - Windows: GetSystemTimes via raw FFI
   - FreeBSD: sysctl kern.cp_time parsing

3. Ubuntu .deb packaging (deploy/deb/):
   - build-deb.sh: creates .deb from pre-built binary
   - test-deb.sh: tests in Ubuntu Docker container

4. Fedora/RHEL RPM packaging (deploy/rpm/):
   - btest-rs.spec: full RPM spec with systemd unit
   - build-rpm.sh + test-rpm.sh

5. Alpine Linux apk packaging (deploy/alpine/):
   - APKBUILD with OpenRC init script
   - test-alpine.sh

58 tests pass, zero warnings.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

deploy/alpine/btest.initd

@@ -0,0 +1,37 @@
+#!/sbin/openrc-run
+# OpenRC init script for btest-rs
+# MikroTik Bandwidth Test server
+
+name="btest"
+description="MikroTik Bandwidth Test Server (btest-rs)"
+command="/usr/bin/btest"
+command_args="-s"
+command_background=true
+pidfile="/run/$name.pid"
+
+# Run as dedicated user if it exists, otherwise root
+command_user="btest:btest"
+
+# Logging
+output_log="/var/log/$name/$name.log"
+error_log="/var/log/$name/$name.err"
+
+depend() {
+	need net
+	after firewall
+	use dns logger
+}
+
+start_pre() {
+	# Create log directory
+	checkpath -d -m 0755 -o "$command_user" /var/log/$name
+
+	# Create runtime directory
+	checkpath -d -m 0755 -o "$command_user" /run
+}
+
+stop() {
+	ebegin "Stopping $name"
+	start-stop-daemon --stop --pidfile "$pidfile" --retry TERM/5/KILL/3
+	eend $?
+}