Detect Notion integration tokens (ntn_...)

[omerbek]

Notion is often used as a backend in no-code and AI side projects.

Format: new integration tokens start with ntn_ followed by 40+ characters. Verify against Notion's docs. The older secret_ prefix is too generic and would cause false alarms, so leave it out.

How to do it

1. Add ("Notion integration token", r"\bntn_[A-Za-z0-9]{40,}\b") (or your verified version) to SECRET_PATTERNS in repodx.py.
2. Add "ntn_" to CANDIDATE_LITERALS.
3. Add the key to SecretScanTests.test_detects_provider_keys in tests/test_repodx.py, built with fake(...).
4. Run python3 -m unittest discover and python3 repodx.py . (must stay 100/100).

Comment here to claim it. One issue per person. See CONTRIBUTING.md. Never paste a real key.