feat: modernize Python project

Author: tianjianjiang

AGENTS.md

@@ -13,7 +13,7 @@ McBopomofo (小麥注音輸入法) is a Traditional Chinese input method engine
 **Development:**
 - macOS 14.7 or later
 - Xcode 15.3 or later
-- Python 3.9 (for dictionary data generation)
+- Python 3.12+ (for dictionary data generation)
 
 ## Building and Running
 
@@ -88,7 +88,7 @@ LC_ALL=C sort -o BPMFMappings.txt BPMFMappings.txt
 LC_ALL=C sort -o phrase.occ phrase.occ
 ```
 
-**For detailed dictionary data documentation**, see `Source/Data/AGENTS.md` which covers file formats, editing workflows, Python tools, and troubleshooting.
+**For detailed dictionary data documentation**, see `Source/Data/README.md` which covers file formats, editing workflows, Python tools, and troubleshooting.
 
 ## GitHub Copilot Configuration
 
@@ -117,7 +117,7 @@ McBopomofo uses a three-layer architecture (Swift/Objective-C++/C++). For detail
 | `Source/Engine/Mandarin/Mandarin.cpp` | Bopomofo syllable processing and keyboard layouts |
 | `Source/Engine/gramambular2/` | Text segmentation algorithms (HMM-based) |
 | `Source/Data/Makefile` | Dictionary data build system |
-| `Source/Data/AGENTS.md` | Comprehensive dictionary data documentation |
+| `Source/Data/README.md` | Comprehensive dictionary data documentation |
 | `algorithm.md` | Detailed algorithm explanation (Chinese) |
 | `McBopomofoTests/PreferencesTests.swift` | Example Swift Testing suite patterns |
 
@@ -181,7 +181,7 @@ McBopomofo uses a three-layer architecture (Swift/Objective-C++/C++). For detail
 
 ### Dictionary Data Modifications
 
-For dictionary data modifications, see [Wiki: 詞庫開發說明](https://github.com/openvanilla/McBopomofo/wiki/詞庫開發說明) or `Source/Data/AGENTS.md` for detailed workflows.
+For dictionary data modifications, see [Wiki: 詞庫開發說明](https://github.com/openvanilla/McBopomofo/wiki/詞庫開發說明) or `Source/Data/README.md` for detailed workflows.
 
 ## Things to Avoid
 

Source/Data/.gitignore

@@ -1,5 +1,230 @@
+# ============================================================================
+# McBopomofo Data Build Artifacts
+# ============================================================================
+# Generated dictionary data files (built by Makefile, bundled into app)
 PhraseFreq.txt
 associated-phrases-v2.txt
 cand.occ
 data-plain-bpmf.txt
 data.txt
+
+# ============================================================================
+# Python .gitignore (Official GitHub Template)
+# ============================================================================
+
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[codz]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#   Usually these files are written by a python script from a template
+#   before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py.cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+.pybuilder/
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+#   For a library or package, you might want to ignore these files since the code is
+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+# Pipfile.lock
+
+# UV
+#   Similar to Pipfile.lock, it is generally recommended to include uv.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+# uv.lock
+
+# poetry
+#   Similar to Pipfile.lock, it is generally recommended to include poetry.lock in version control.
+#   This is especially recommended for binary packages to ensure reproducibility, and is more
+#   commonly ignored for libraries.
+#   https://python-poetry.org/docs/basic-usage/#commit-your-poetrylock-file-to-version-control
+# poetry.lock
+# poetry.toml
+
+# pdm
+#   Similar to Pipfile.lock, it is generally recommended to include pdm.lock in version control.
+#   pdm recommends including project-wide configuration in pdm.toml, but excluding .pdm-python.
+#   https://pdm-project.org/en/latest/usage/project/#working-with-version-control
+# pdm.lock
+# pdm.toml
+.pdm-python
+.pdm-build/
+
+# pixi
+#   Similar to Pipfile.lock, it is generally recommended to include pixi.lock in version control.
+# pixi.lock
+#   Pixi creates a virtual environment in the .pixi directory, just like venv module creates one
+#   in the .venv directory. It is recommended not to include this directory in version control.
+.pixi
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow and github.com/pdm-project/pdm
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# Redis
+*.rdb
+*.aof
+*.pid
+
+# RabbitMQ
+mnesia/
+rabbitmq/
+rabbitmq-data/
+
+# ActiveMQ
+activemq-data/
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.envrc
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+# pytype static type analyzer
+.pytype/
+
+# Cython debug symbols
+cython_debug/
+
+# PyCharm
+#   JetBrains specific template is maintained in a separate JetBrains.gitignore that can
+#   be found at https://github.com/github/gitignore/blob/main/Global/JetBrains.gitignore
+#   and can be added to the global gitignore or merged into this file.  For a more nuclear
+#   option (not recommended) you can uncomment the following to ignore the entire idea folder.
+# .idea/
+
+# Abstra
+#   Abstra is an AI-powered process automation framework.
+#   Ignore directories containing user credentials, local state, and settings.
+#   Learn more at https://abstra.io/docs
+.abstra/
+
+# Visual Studio Code
+#   Visual Studio Code specific template is maintained in a separate VisualStudioCode.gitignore
+#   that can be found at https://github.com/github/gitignore/blob/main/Global/VisualStudioCode.gitignore
+#   and can be added to the global gitignore or merged into this file. However, if you prefer,
+#   you could uncomment the following to ignore the entire vscode folder
+# .vscode/
+
+# Ruff stuff:
+.ruff_cache/
+
+# PyPI configuration file
+.pypirc
+
+# Marimo
+marimo/_static/
+marimo/_lsp/
+__marimo__/
+
+# Streamlit
+.streamlit/secrets.toml