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/test-rpm.sh

@@ -0,0 +1,75 @@
+#!/usr/bin/env bash
+# test-rpm.sh — Test the btest-rs RPM build inside a Fedora container
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+REPO_ROOT="$(cd "${SCRIPT_DIR}/../.." && pwd)"
+
+IMAGE="fedora:latest"
+
+echo "==> Testing RPM build in ${IMAGE}"
+docker run --rm \
+    -v "${REPO_ROOT}:/workspace:ro" \
+    "${IMAGE}" \
+    bash -euxc '
+        # ── Install build dependencies ──
+        dnf install -y rpm-build rpmdevtools curl gcc make \
+            systemd-rpm-macros
+
+        # Install Rust toolchain
+        curl --proto "=https" --tlsv1.2 -sSf https://sh.rustup.rs \
+            | sh -s -- -y --profile minimal
+        source "$HOME/.cargo/env"
+
+        # ── Set up rpmbuild tree ──
+        rpmdev-setuptree
+
+        VERSION="0.6.0"
+        TARBALL="v${VERSION}.tar.gz"
+
+        # Copy spec
+        cp /workspace/deploy/rpm/btest-rs.spec ~/rpmbuild/SPECS/
+
+        # Create source tarball from workspace
+        # rpmbuild expects btest-rs-VERSION/ top-level directory
+        mkdir -p /tmp/btest-rs-${VERSION}
+        cp -a /workspace/. /tmp/btest-rs-${VERSION}/
+        tar czf ~/rpmbuild/SOURCES/${TARBALL} -C /tmp btest-rs-${VERSION}
+
+        # ── Build RPM ──
+        rpmbuild -ba ~/rpmbuild/SPECS/btest-rs.spec
+
+        # ── Install the RPM ──
+        RPM=$(find ~/rpmbuild/RPMS -name "btest-rs-*.rpm" | head -1)
+        echo "Installing: ${RPM}"
+        dnf install -y "${RPM}"
+
+        # ── Verify installation ──
+        echo "--- btest --version ---"
+        btest --version
+
+        echo "--- Checking systemd unit ---"
+        systemctl cat btest.service || true
+
+        echo "--- Checking man page ---"
+        test -f /usr/share/man/man1/btest.1* && echo "man page OK" || echo "man page MISSING"
+
+        echo "--- Checking license ---"
+        test -f /usr/share/licenses/btest-rs/LICENSE && echo "license OK" || echo "license MISSING"
+
+        # ── Loopback bandwidth test ──
+        echo "--- Starting loopback test ---"
+        btest -s &
+        SERVER_PID=$!
+        sleep 2
+
+        btest -c 127.0.0.1 --duration 3 && echo "Loopback test PASSED" \
+            || echo "Loopback test FAILED (exit $?)"
+
+        kill "${SERVER_PID}" 2>/dev/null || true
+        wait "${SERVER_PID}" 2>/dev/null || true
+
+        echo "==> All RPM tests completed."
+    '
+
+echo "==> Fedora container test finished."