Fold Norgate Task Scheduler debugging notes into docs

[mspinola]

Summary

• Folds cotdata-relevant notes from a private Windows Task Scheduler debugging session into docs/WINDOWS_SCHEDULING.md's Troubleshooting section, so they live in the repo instead of a personal note.
• New: "Task doesn't fire at all" (disabled task, AC-power condition silently skipping runs on a laptop producer).
• New: "Can't write to the store over a network path" (UNC path access needs the task's own run-as credentials, since a mapped drive or interactive session doesn't carry over).
• New: reference link for decoding numeric Last Run Result codes.
• Left out anything generic/not cotdata-specific or already covered (NDU session requirement, fully-qualified exe paths, exit-code semantics were already in the doc).

Test plan

• Docs-only change, no code/tests affected
• Read through the merged Troubleshooting section end-to-end to confirm no duplication with existing entries