Fixes for Vector Set RENAMEs in AOF replay

[kevin-montrose]

A number of issues exist if Vector Sets are RENAME'd during AOF replay.

Fundamentally RENAME is a little weird as it is not a single operation against the Tsavorite log, but rather a bundle of gets, deletes, and sets covered by a transaction. Related fix #2071 .

This PR fixes these by:

• Correctly handling the SetFlags version of VADD
• Waiting for concurrent VADDs and various cleanup tasks to complete before and after AOF recovery starts
• Special casing RENAME's associated UnifiedStoreStringUpsert op in the AOF
  • This is necessary because the context and indexPtr actually stored in the value are not necessarily correct during replay and need to be refreshed with current values

[Copilot]

Pull request overview

Fixes Vector Set rename handling during AOF recovery and coordinates background vector operations around replay.

Changes:

• Records rename metadata and reconstructs Vector Set indexes during replay.
• Adds recovery quiescence waits and Vector Set reconciliation.
• Adds AOF rename recovery tests.

Reviewed changes

Copilot reviewed 15 out of 15 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
test/standalone/Garnet.test.vectorset/VectorSetOverwriteTests.cs	Uses the expanded quiescence wait.
test/standalone/Garnet.test.vectorset/RespVectorSetTests.cs	Tests rename recovery scenarios.
libs/storage/Tsavorite/cs/src/core/ClientSession/ManageClientSessions.cs	Removes blank lines.
libs/server/StoreWrapper.cs	Reorders vector recovery around AOF replay.
libs/server/Storage/Session/UnifiedStore/UnifiedStoreOps.cs	Records rename keys and record type.
libs/server/Storage/Functions/UnifiedStore/VarLenInputMethods.cs	Restores record type during replay.
libs/server/Storage/Functions/UnifiedStore/UpsertMethods.cs	Separates rename metadata from expiration.
libs/server/Resp/Vector/VectorManager.Replication.cs	Handles flag replay and rename copying.
libs/server/Resp/Vector/VectorManager.cs	Formatting-only change.
libs/server/Resp/Vector/VectorManager.Cleanup.cs	Expands background-work waiting.
libs/server/Databases/SingleDatabaseManager.cs	Waits for vector replay and cleanup.
libs/server/Databases/MultiDatabaseManager.cs	Adds per-database vector quiescence.
libs/server/Databases/IDatabaseManager.cs	Updates recovery-order documentation.
libs/server/AOF/AofProcessor.cs	Special-cases Vector Set rename upserts.
libs/cluster/Server/Replication/ReplicationManager.cs	Reconciles vectors before cluster AOF replay.

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