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/rpm/btest-rs.spec

@@ -0,0 +1,73 @@
+Name:           btest-rs
+Version:        0.6.0
+Release:        1%{?dist}
+Summary:        MikroTik Bandwidth Test (btest) server and client with EC-SRP5 auth
+
+License:        MIT AND Apache-2.0
+URL:            https://github.com/manawenuz/btest-rs
+Source0:        https://github.com/manawenuz/btest-rs/archive/refs/tags/v%{version}.tar.gz
+
+BuildRequires:  cargo
+BuildRequires:  rust
+ExclusiveArch:  x86_64 aarch64
+
+%description
+A Rust reimplementation of the MikroTik Bandwidth Test (btest) protocol,
+providing both server and client functionality with EC-SRP5 authentication.
+
+%prep
+%autosetup -n %{name}-%{version}
+
+%build
+export CARGO_TARGET_DIR=target
+cargo build --release
+
+%install
+install -Dm755 target/release/btest %{buildroot}%{_bindir}/btest
+install -Dm644 docs/man/btest.1 %{buildroot}%{_mandir}/man1/btest.1
+install -Dm644 LICENSE %{buildroot}%{_datadir}/licenses/%{name}/LICENSE
+
+# systemd service unit
+install -d %{buildroot}%{_unitdir}
+cat > %{buildroot}%{_unitdir}/btest.service << 'EOF'
+[Unit]
+Description=MikroTik Bandwidth Test Server (btest-rs)
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+ExecStart=/usr/bin/btest -s
+Restart=always
+RestartSec=5
+DynamicUser=yes
+NoNewPrivileges=yes
+ProtectSystem=strict
+ProtectHome=yes
+PrivateTmp=yes
+AmbientCapabilities=CAP_NET_BIND_SERVICE
+CapabilityBoundingSet=CAP_NET_BIND_SERVICE
+LimitNOFILE=65535
+
+[Install]
+WantedBy=multi-user.target
+EOF
+
+%files
+%license LICENSE
+%{_bindir}/btest
+%{_mandir}/man1/btest.1*
+%{_unitdir}/btest.service
+
+%post
+%systemd_post btest.service
+
+%preun
+%systemd_preun btest.service
+
+%postun
+%systemd_postun_with_restart btest.service
+
+%changelog
+* Mon Mar 30 2026 Siavash Sameni <manwe@manko.yoga> - 0.6.0-1
+- Initial RPM package