chore: multiple improvements

[ByteBaker]

It's an overall negative PR, meaning there are more lines deleted than added. Following changes have been made, some of which should actually improve the performance all so slightly.

• remove a few unwrap(), partly covers Replace unwrap() #933
• replace code with idiomatic version of it
• rewrite time_from_path to make it simpler + robust
• rewrite flatten_objects_for_count reducing loops and simplify the accumulator inside it
• make the Regex in Message::extract_column_names static
• correct a few panic messages

Description

---

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.

[github-actions]

CLA Assistant Lite bot All contributors have signed the CLA ✍️ ✅

[ByteBaker]

I have read the CLA Document and I hereby sign the CLA

[ByteBaker]

recheck

[nikhilsinhaparseable]

@ByteBaker Integration tests fail in the PR, and if you look in the details, Quest Integrity test fails as the ingestion fails with the error -
Error in response: Invalid(Schema mismatch)
Clone the quest repo from https://github.com/parseablehq/quest
and run the Parseable server locally.
Execute the TestIntegrity function under integrity_test.go to reproduce the error.

Looks like there is some issue with the change you did in one of the two methods -
fields_mismatch and valid_type

The same test runs successfully in the main branch, you can verify the same.

Thanks!

[nitisht]

Closing because of no response. @ByteBaker feel free to reopen if you plan to work on this.