feat(analyzer): add country-specific predefined recognizer for Taiwan (TW) National ID

[ArjunPakhan]

Description

This PR introduces a new country-specific predefined recognizer for identifying Taiwan (TW) National Identification Numbers within the presidio-analyzer engine.

The implementation detects the standard identification layout consisting of an initial uppercase letter representing the region, followed by a gender/status identifier digit (1, 2, 8, or 9), and 8 sequential tracking digits.

Key Modifications:

1. Recognizer Core: Built TwNationalIdRecognizer using pattern matching regex (\b[A-Z][1289][0-9]{8}\b) alongside English and Traditional Chinese contextual keywords (身分證, 統一編號, etc.) to enhance validation accuracy.
2. Case-Sensitivity Handling: Implemented an explicit override in invalidate_result to reject lowercase prefix alphabets, counteracting Presidio's default global IGNORECASE execution flag.
3. Module Registry: Registered the new class component globally within predefined_recognizers/__init__.py and exported it via the localized tw country directory module layout.
4. Configuration Mapping: Added - name: TwNationalIdRecognizer across all core engine configuration routing trees (default_recognizers.yaml, slim.yaml, and default_analyzer_full.yaml).

Target Entity Specifications

• Entity Type Name: TW_NATIONAL_ID
• Supported Language: zh (Chinese / Traditional Chinese)
• Default Score: 0.3 (Weak pattern baseline, augmented via context words)

---

Technical Visual Architecture

The module interacts within the standard Presidio predefined pipeline as follows:

[ArjunPakhan]

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[Copilot]

Pull request overview

Adds a new country-specific predefined recognizer to presidio-analyzer for detecting Taiwan National ID numbers (TW_NATIONAL_ID), wiring it into the predefined recognizer exports and multiple analyzer configuration profiles, along with a new unit test.

Changes:

• Added TwNationalIdRecognizer under predefined_recognizers/country_specific/tw/ with regex + context keywords and a lowercase invalidation override.
• Exported the recognizer via predefined_recognizers/__init__.py and the tw package __init__.py.
• Updated analyzer config YAMLs and introduced a dedicated test module.

Reviewed changes

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

Show a summary per file

File	Description
presidio-analyzer/tests/test_tw_national_id_recognizer.py	Adds unit tests for the new TW National ID recognizer.
presidio-analyzer/presidio_analyzer/predefined_recognizers/country_specific/tw/tw_national_id_recognizer.py	Implements the new TwNationalIdRecognizer (pattern + context + invalidation).
presidio-analyzer/presidio_analyzer/predefined_recognizers/country_specific/tw/init.py	Exports TwNationalIdRecognizer from the TW country package.
presidio-analyzer/presidio_analyzer/predefined_recognizers/init.py	Adds the new recognizer to global predefined exports and __all__.
presidio-analyzer/presidio_analyzer/conf/slim.yaml	Attempts to include the TW recognizer in the slim registry profile.
presidio-analyzer/presidio_analyzer/conf/default_recognizers.yaml	Attempts to add the TW recognizer to the default recognizer list (no-code config).
presidio-analyzer/presidio_analyzer/conf/default_analyzer_full.yaml	Attempts to include the TW recognizer in the full analyzer registry profile.

Comments suppressed due to low confidence (1)

presidio-analyzer/presidio_analyzer/conf/default_recognizers.yaml:70

• This insertion breaks YAML metadata: UsSsnRecognizer no longer has type/supported_languages/country_code, and TwNationalIdRecognizer is incorrectly tagged with supported_languages: [en] and country_code: us (which will raise ValueError because the class declares COUNTRY_CODE = "tw").

  - name: UsSsnRecognizer
  - name: TwNationalIdRecognizer
    supported_languages:
    - en
    type: predefined
    country_code: us