Duplicated work in Fuzzer

[shelld3v]

In lib/core/fuzzer.py, self._hashes and self._auto_calibrated_fingerprints are doing duplicated work, we should merge them into 1

[miraj24398-bit]

sha256:4885e15af2ceaaa28b447224fc72c6478f8ff8db8ed26b53a2446e739beae770

[miraj24398-bit]

sha256:4885e15af2ceaaa28b447224fc72c6478f8ff8db8ed26b53a2446e739beae770

[miraj24398-bit]

919067176635

[maurosoria]

These structures should not be merged as proposed because they implement different behavior.

• _hashes belongs to --filter-threshold. It uses the response's exact status/static-body hash, is enabled only when the user requests that option, and counts responses only after the normal filters and wildcard scanners accept them.
• Auto-calibration actually uses _similar_fingerprints as its counter and _auto_calibrated_fingerprints as the set of fingerprints that crossed the threshold. Its key intentionally normalizes dynamic/path content and also includes status, content type, redirect, and a length bucket. It runs earlier and records only eligible responses unless forced.

Combining these stores or fingerprints would change which responses are counted and filtered, including the number of initial matches emitted, and could introduce false positives.

A shared counter/helper would be reasonable only if both key formats, activation rules, thresholds, ordering, and lifetimes remain separate and existing behavior is covered by focused tests. Please re-scope this issue as an internal no-behavior-change refactor if that is the intended goal.

[shelld3v]

We can make _hashes storing the same thing as _similar_fingerprints, there is no difference in the purposes of both: catch fallback responses during scanning.

If we merge them, we should:

• The check should happen after normal filters and wildcard scanners
• Use hash(response), remove response_fingerprint(), add redirect and content-type to Response.__hash__
• Remove should_record_auto_calibration(), check options["auto_calibration"] only
• Rename --filter-threshold to --cali-threshold or --auto-calibration to --auto-filtering