Use procedures for region create/delete to fix the delete-region ghost task#18033

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CRZbulabula wants to merge 3 commits into

improve-region-maintain-async

Commits on Jun 25, 2026

Use procedures for region create/delete to fix the delete-region ghost task
CRZbulabula
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Reuse deleteOldRegionPeer for region deletion instead of a new RPC
CRZbulabula
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Commits on Jun 26, 2026

Recreate failed replicas via RegionMaintainer; remove failed region groups via procedure
CRZbulabula
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