FIX: Windows failing build and querying

[parmesant]

Fixes #824 and Failing builds on windows

Description

For #824, the file path being passed to PartitionedFile struct is being modified if the storage_mode is drive (for s3-store, and blob-store the current code works just fine)

For failing windows builds, a cfg!() is added to tokio::select! macro to handle different signals for different underlying OS

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This PR has:

• been tested to ensure log ingestion and log query works.
• added comments explaining the "why" and the intent of the code wherever would not be obvious for an unfamiliar reader.
• added documentation for new or modified features or behaviors.

[nikhilsinhaparseable]

looks good to merge