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[skill] Generalize verification skill into 2 scenarios (module checklist / PR validation) (#48848)
Add preview release versioning and update channel support (#49414)
[UITests] Add UITest.Next suites (Image Resizer, Peek, File Explorer add‑ons, File Locksmith) + local‑VM tooling and CI test‑signing (#49671)
feat(winmd-api-search): add WinMD cache generator script and related files (#45606)
docs(skills): recommend WindowEx for WinUI 3 migrations (#49303)