feat(analyzer): add Taiwan-specific recognizers for national id and phone

[matheme-justyn]

Change Description

This PR adds Taiwan-specific predefined recognizers in presidio-analyzer:

• TW_NATIONAL_ID
• TW_PHONE_NUMBER

This iteration intentionally does not include Taiwan Unified Business Number.

Issue reference

Fixes #2065

Public references

Taiwan National ID

• Taiwan Ministry of the Interior, Department of Household Registration:
  • National ID related official pages
  • https://www.ris.gov.tw/app/portal/3014
  • https://www.ris.gov.tw/app/portal/188

Taiwan phone numbers

• ITU-T Recommendation E.164 (international numbering plan):
  • https://www.itu.int/rec/T-REC-E.164/en
• Taiwan NCC / telecommunications numbering references:
  • https://law.moda.gov.tw/Download.ashx?FileID=176&id=55&type=HLAW
  • https://ncclaw.ncc.gov.tw/Eng/FLAWDAT01.aspx?id=FL103297

What is included

• tests for TW_NATIONAL_ID
• TW_NATIONAL_ID recognizer with checksum validation
• docs for TW_NATIONAL_ID
• tests for TW_PHONE_NUMBER
• TW_PHONE_NUMBER recognizer using Taiwan (TW) regional phone validation
• docs for TW_PHONE_NUMBER
• default recognizer config entries for both Taiwan recognizers
• registry-level test coverage for default config visibility and loader resolution

Implementation notes

• TW_NATIONAL_ID first matches one leading letter followed by 9 digits, restricts the second digit to 1 or 2, and then validates the candidate with the Taiwan ID checksum calculation implemented locally in Presidio.
• TW_PHONE_NUMBER follows the upstream Taiwan phone-validation flow: the input is normalized, +886 or region TW is used to determine the country code, the national trunk prefix 0 is stripped, and the resulting national number is checked against Taiwan metadata by length and full ^(?:pattern)$ regular-expression match across the supported number types (for example mobile, fixed line, toll-free, and others).
• In this PR, Presidio does not reimplement a separate Taiwan numbering table; it wraps that existing Taiwan-region matching/parsing behavior and adds Taiwan-specific tests and documentation around it.

Notes

• TW_PHONE_NUMBER is intentionally implemented as a thin Taiwan-specific wrapper around the existing generic PhoneRecognizer, restricting validation to the TW region instead of duplicating parsing logic.
• Both Taiwan recognizers are added to default_recognizers.yaml with enabled: false, matching the existing convention for many country-specific recognizers.
• Taiwan Unified Business Number is intentionally left out of this PR.

Tests

Executed locally:

• ../.venv/bin/python -m pytest tests/test_tw_national_id_recognizer.py tests/test_tw_phone_number_recognizer.py
• ../.venv/bin/python -m pytest tests/test_tw_national_id_recognizer.py tests/test_tw_phone_number_recognizer.py tests/test_recognizer_registry.py -k 'tw or country or default_yaml'
• ../.venv/bin/python -m ruff check tests/test_tw_national_id_recognizer.py tests/test_tw_phone_number_recognizer.py presidio_analyzer/predefined_recognizers/country_specific/taiwan/tw_national_id_recognizer.py presidio_analyzer/predefined_recognizers/country_specific/taiwan/tw_phone_number_recognizer.py presidio_analyzer/predefined_recognizers/__init__.py

Result:

• 63 passed, 19 deselected
• ruff check passed for the touched Python files

Checklist

• I have reviewed the contribution guidelines
• I have signed the CLA (if required)
• My code includes unit tests
• Relevant local tests pass
• My PR contains documentation updates / additions if required

[Copilot]

Pull request overview

Adds Taiwan (TW) country-specific predefined recognizers to presidio-analyzer for detecting Taiwan National ID numbers and Taiwan phone numbers, including default-registry configuration, unit tests, and public documentation updates.

Changes:

• Introduce TwNationalIdRecognizer (checksum-validated) and TwPhoneNumberRecognizer (TW-region wrapper over generic PhoneRecognizer).
• Register both recognizers in default_recognizers.yaml (disabled by default) and expose them via presidio_analyzer.predefined_recognizers.
• Add unit tests and update supported-entities docs and changelog entries.

Reviewed changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
presidio-analyzer/presidio_analyzer/predefined_recognizers/country_specific/taiwan/tw_national_id_recognizer.py	New TW national ID recognizer with checksum validation.
presidio-analyzer/presidio_analyzer/predefined_recognizers/country_specific/taiwan/tw_phone_number_recognizer.py	New TW phone recognizer wrapper restricting validation to region TW.
presidio-analyzer/presidio_analyzer/predefined_recognizers/init.py	Exposes Taiwan recognizers from the predefined recognizers package.
presidio-analyzer/presidio_analyzer/conf/default_recognizers.yaml	Adds disabled-by-default YAML entries for the two TW recognizers with country_code: tw.
presidio-analyzer/tests/test_tw_national_id_recognizer.py	Adds unit coverage for TW national ID detection and checksum validation.
presidio-analyzer/tests/test_tw_phone_number_recognizer.py	Adds unit coverage for TW phone number detection and metadata defaults.
presidio-analyzer/tests/test_recognizer_registry.py	Adds registry-level test ensuring YAML entries exist and classes resolve via loader.
docs/supported_entities.md	Documents the new TW entity types (needs section placement/content correction per review).
CHANGELOG.md	Notes the addition of the two Taiwan recognizers under Unreleased.

[matheme-justyn]

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