Revert 1 codex/fix pagination param validation

[sairamveereddy]

What changed

• Added strict validation for shared page and limit query parsing.
• Rejects non-numeric, decimal, negative, and repeated query values before they can flow into pagination logic.
• Added focused Jest coverage for valid, default, zero, and invalid pagination inputs.

Why

getPageAndLimitParams previously used parseInt and only checked for negative numbers. Values like abc, 1.5, or repeated query params could become NaN or be partially parsed, then leak into controller/service pagination behavior.

Validation

• Reviewed the diff.
• Ran git diff --cached --check successfully.

[gemini-code-assist]

Note

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