[aviator-sim] kvserver: return error from IntentScannerConstructor

[rishabh7m]

Simulation PR for aviator Merge Queue

This PR simulates the behavior of original PR 154717 from timeline.

Original PR Details

• Title: kvserver: return error from IntentScannerConstructor
• Author: stevendanna
• Base Branch: master

Simulation Details

• Vendor: aviator
• Target Base: master-aviator
• Simulation Time: 2025-11-12T17:12:56+05:30

Timeline Replication

This PR will replicate the timing patterns from the original PR with time compression applied.

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This is an automated simulation PR for merge queue vendor comparison.

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[rishabh7m]

/aviator merge

[aviator-app]

Aviator has accepted the merge request. It will enter the queue when all of the required status checks have passed. Aviator will update the sticky status comment as the pull request moves through the queue.