Fix rewinding the incorrect deployment instance

[dimitrovmaksim]

Resolves #6088

The Problem:

• Two instances of the same subgraph/deployment exist (one active sgdXXX, one not sgdYYY).
• Running graphman rewind sgdYYY ... to rewind the non-active deployment would incorrectly rewind the active deployment.
• Cause: SubgraphStore::rewind and SubgraphStore::truncate accept DeploymentHash and resolved the hash to the active deployment.

What this PR does:

• Changes SubgraphStore::rewind and SubgraphStore::truncate to accept and use DeploymentId.
• Ensures the code fetches the correct Site and DeploymentStore for the exact deployment being targeted.
• Keeps original safety checks and error messages.