feat: add Turkish National ID (TR_NATIONAL_ID) recognizer

[mrcuren]

Adds Turkish National ID (TCKN / TC Kimlik Numarası) recognizer to Presidio Analyzer.

The TCKN is an 11-digit identification number issued to Turkish citizens and foreign residents. It is the primary PII under Turkish KVKK (Personal Data Protection Law).

Features:

• Pattern recognition for 11-digit numbers starting with 1-9
• Algorithmic validation of 10th and 11th digits per official NVI specification
• Context words for higher confidence detection (TC Kimlik, TCKN, etc.)
• Disabled by default as per country-specific recognizer guidelines

Issue reference

Part of #1973

Testing

• Added test_tr_national_id_recognizer.py with >=90% coverage on changed lines
• Tests include valid checksums, invalid checksums, and false positive checks (short/long inputs, non-digits)
• All existing tests continue to pass

Checklist

• I have reviewed the contribution guidelines
• My code follows the project style guidelines (ruff, pytest)
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have updated the CHANGELOG.md under the Unreleased section
• I have updated the supported_entities.md documentation
• I have added my recognizer to default_recognizers.yaml with enabled: false
• I have added my recognizer to __init__.py and __all__

[mrcuren]

@microsoft-github-policy-service agree

[mrcuren]

Thanks for the CLA approval.

This PR is now ready for review. Happy to make any changes if needed, especially around naming or checksum validation logic.

[Copilot]

Pull request overview

Adds a new country-specific predefined recognizer to Presidio Analyzer for detecting Turkish National Identification Numbers (TCKN / TR_NATIONAL_ID), including checksum validation and registration in the default recognizer configuration and public docs.

Changes:

• Introduces TrNationalIdRecognizer with regex detection + checksum validation and context terms.
• Registers the recognizer in predefined_recognizers/__init__.py and conf/default_recognizers.yaml (disabled by default).
• Adds unit tests and updates supported_entities.md and CHANGELOG.md.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
presidio-analyzer/presidio_analyzer/predefined_recognizers/country_specific/turkey/tr_national_id_recognizer.py	Implements the TR national ID recognizer (pattern + checksum validation + context).
presidio-analyzer/presidio_analyzer/predefined_recognizers/country_specific/turkey/init.py	Exposes the Turkey-specific recognizer module.
presidio-analyzer/presidio_analyzer/predefined_recognizers/init.py	Exports TrNationalIdRecognizer from the predefined recognizers package.
presidio-analyzer/presidio_analyzer/conf/default_recognizers.yaml	Adds recognizer to default registry (disabled by default).
presidio-analyzer/tests/test_tr_national_id_recognizer.py	Adds unit tests for detection and checksum validation.
docs/supported_entities.md	Documents TR_NATIONAL_ID under a new “Turkey” section.
CHANGELOG.md	Notes the addition under the Unreleased Analyzer additions.

[mrcuren]

@copilot Thank you for the review!

Regarding the NVI algorithm source: I've added a reference to the official NVI portal (https://tckimlik.nvi.gov.tr/) in the docstring at line 15-16 to provide a concrete source for the checksum validation logic.

Regarding the false-positive tests: I've updated the PR description to remove the phone number reference since those test cases aren't included in the test suite. The current tests cover the essential false-positive scenarios (short/long inputs, non-digits, invalid checksums).

Happy to make any additional adjustments if needed!