[Feature Request] Allow marking similar video pairs as "not a match" to exclude them from future scans

[simonbcn]

Feature Request: Persistent "not a match" exclusion list for Similar Videos

Problem

When using the Similar Videos tool, false positives appear on every scan — videos that are shown as similar when they are not. In my case, these are videos with similar filenames but completely different content. There is currently no way to tell Krokiet "these two files are not similar" so that the pair is remembered and skipped in future scans.

Every scan, the same false positives reappear and must be manually dismissed again.

Proposed Solution

Add a way to mark specific pairs of files as "not a match". These pairs would be stored persistently (e.g., in the cache directory alongside the existing .bin cache files) and automatically excluded from results in future scans.

This would be especially useful for the Similar Videos tool, where false positives are common due to shared intros, ads, or short repeated clips.

Expected Behavior

1. User runs a Similar Videos scan and sees results.
2. User selects one or more pairs that are false positives and clicks "Mark as not similar" (or similar action).
3. Those pairs are saved to a persistent exclusion list.
4. On the next scan, those pairs are automatically filtered out of the results.

Why This Matters

• Speeds up scans by skipping already-reviewed false positive pairs
• Saves time for users with large video libraries
• Reduces noise in results so real duplicates are easier to spot
• Already partially discussed in Too Many False Positives With Ad Files #1440 (closed without implementation) and similar videos default finds a forest of non-similar videos - and does not list many of the actual duplicates. #1749

Platform

Krokiet (Slint-based GUI), Linux