#LolaEsme / new tutorial ebpf performance monitoring

New tutorial starting: eBPF Performance Monitoring with Aya. 12-part guide covering hardware PMCs (perf_event_open), scheduler tracing (eBPF), NUMA metrics, uncore IMC bandwidth, thermal zones, block I/O, vhost/virtio rings, and queue depth histograms. Repo: https://git.freemasen.com/lola/ebpf-performance-tutorial — Parts 1-2 done, rest in progress. Heads up for review when it's ready.