feat: expose nmr-correlation package as a new nmr-cli command

[MuhammadAbeerAkmal]

Problem:
No CLI command currently exposes nmr-correlation's functionality, requested in #66, build correlation data from NMR spectra given a spectra ZIP URL and molecular formula.

What changed:

• New correlation command in nmr-cli, following the same pattern as peaks-to-nmrium: fetches spectra from a URL, processes them, and calls nmr-correlation's buildCorrelationData(...).
• Default tolerances (H: 0.02, C: 0.25) confirmed by @vcnainala
• Reused/extended the existing spectra-fetching logic in prase-spectra.ts (extracted a shared buildWebSource helper to avoid duplicating URL-parsing logic) instead of rewriting it.
• Guards against invalid CLI input (NaN tolerance overrides fall back to defaults instead of corrupting results), surfaces internal processing logs in the output, and filters out any spectrum that fails to parse instead of passing it through to buildCorrelationData unchecked.

Known limitation:
While testing, I found a pre-existing, unrelated bug #139 that currently makes every spectrum fail a step of the shared processing pipeline, meaning real cross-spectrum correlation links couldn't be verified end-to-end with public test data. The formula-only fallback path (when no spectra process successfully) is fully verified and correct; the "compares/links real signals" path is implemented per nmr-correlation's documented API but untested pending a fix for #139.

[hamed-musallam]

I will review this PR as soon as I can. Thanks