contrib: expand Windows mixin rules and publish runbooks (#2575)

Signed-off-by: Jan-Otto Kröpke <mail@jkroepke.de>

docs/runbooks/windowsdiskreadlatencyhigh.md

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+---
+title: WindowsDiskReadLatencyHigh
+---
+
+## Meaning
+
+Average disk read service time exceeds the configured threshold for 15 minutes.
+The default is 0.05 seconds (50 ms) per operation, computed from read-time and
+read-operation counter rates. Volumes with no reads produce no latency sample.
+
+## Impact
+
+Slow storage reads may delay application requests, database queries, and paging.
+The recording is an average, so it does not expose tail latency.
+
+## Diagnosis
+
+1. Inspect `windows:logical_disk_read_latency:seconds` for the affected `volume`
+   alongside read IOPS, read throughput, and `windows:logical_disk_busy:ratio`.
+2. Inspect `windows_logical_disk_requests_queued` and use Resource Monitor to
+   identify processes generating disk reads. Look for backup, antivirus, and
+   indexing jobs.
+3. Check System event logs and storage-controller logs for disk, controller,
+   multipath, or network-storage errors.
+4. For virtual machines, check datastore latency and competing workloads on the
+   hypervisor or storage array. Low IOPS can make averages noisy.
+
+## Mitigation
+
+Reduce competing reads or reschedule background jobs. Address storage-path errors
+and provision enough IOPS and throughput for the workload. Investigate excessive
+paging if memory pressure is contributing. Tune the latency threshold to the
+storage tier and application's service objectives, then confirm both service
+latency and disk read latency improve.