Refactor project into a reusable Python library with CLI, docs, and release workflows

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches: [main, master]
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.10", "3.11"]
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install -e .[dev]
+
+      - name: Run tests
+        run: python -m pytest -v
+
+      - name: Build package
+        run: python -m build

.github/workflows/publish.yml

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+name: Publish Python Package
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  publish:
+    if: ${{ !github.event.release.prerelease }}
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: write
+      id-token: write
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.11"
+
+      - name: Install build tools
+        run: |
+          python -m pip install --upgrade pip
+          pip install build
+
+      - name: Build distributions
+        run: python -m build
+
+      - name: Publish to PyPI
+        uses: pypa/gh-action-pypi-publish@release/v1
+
+      - name: Upload dist files to GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: dist/*

.github/workflows/release.yml

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+name: Release Build
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  build-release-artifacts:
+    if: ${{ !github.event.release.prerelease }}
+    runs-on: ubuntu-latest
+
+    permissions:
+      contents: write
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.10"
+
+      - name: Install build dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install build
+
+      - name: Build distributions
+        run: python -m build
+
+      - name: Upload artifacts to GitHub Release
+        uses: softprops/action-gh-release@v2
+        with:
+          files: dist/*

.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+*.egg
+MANIFEST
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage / pytest
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache/
+.pytest_cache/
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+
+# Type check / lint caches
+.mypy_cache/
+.ruff_cache/
+.pyre/
+.dmypy.json
+dmypy.json
+
+# Virtual environments
+.venv/
+venv/
+env/
+ENV/
+
+# Jupyter Notebook
+.ipynb_checkpoints/
+
+# IDEs / editors
+.vscode/
+.idea/
+
+# OS files
+.DS_Store
+Thumbs.db
+
+# Local environment files
+.env
+.env.*
+*.local
+
+# Logs
+*.log
+
+# Temporary files
+tmp/
+temp/
+*.tmp
+
+# Project generated files
+output/
+temp_uploads/
+generated/
+reports/
+
+# Excel / export artifacts
+*.xlsx
+
+# Database / local data
+*.db
+*.sqlite3
+
+# Python build metadata
+.pybuild/
+
+# Packaging tools
+pip-wheel-metadata/
+
+# PyInstaller
+*.manifest
+*.spec

LICENSE

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+MIT License
+
+Copyright (c) 2026 Daniel Arndt
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# Pydf
+
+[Documentação PT-BR](docs/README.pt-BR.md) | [English docs](docs/README.en.md)
+
+A `pydf` é uma biblioteca Python leve para leitura de PDFs de faturas, extração de metadados com regex, exportação para Excel e persistência opcional em MySQL.
+
+Esta versão reorganiza o projeto original como biblioteca e CLI, sem fugir da ideia central do script: **PDF -> extração -> Excel -> MySQL opcional**.
+
+## Visão rápida
+
+- Biblioteca Python reutilizável
+- CLI simples para uso no terminal
+- Regex configurável para número e data da fatura
+- Exportação para `.xlsx`
+- Persistência opcional em MySQL
+- Documentação em PT-BR e inglês
+- Workflows de CI e release para GitHub Actions
+
+## Requisitos
+
+- Python **3.10 ou superior**
+- `pip`
+- Recomendado: ambiente virtual (`venv`)
+
+## Instalação local
+
+Na raiz do projeto:
+
+```bash
+pip install -e .
+```
+
+Instalação com dependências de desenvolvimento:
+
+```bash
+pip install -e .[dev]
+```
+
+## Instalação da CLI via GitHub
+
+Como o GitHub não oferece um registry Python suportado para `pip` no GitHub Packages, a forma recomendada para instalar a CLI a partir do GitHub é usar o próprio repositório Git.
+
+### Instalar da branch padrão
+
+```bash
+pip install "git+https://github.com/DanielArndt0/pydf.git"
+```
+
+### Instalar de uma tag ou release específica
+
+```bash
+pip install "git+https://github.com/DanielArndt0/pydf.git@v1.0.0"
+```
+
+Depois disso, a CLI fica disponível como:
+
+```bash
+pydf --help
+```
+
+## Primeiros passos com venv no Windows
+
+Se você tiver mais de uma versão do Python instalada, confira as versões disponíveis:
+
+```powershell
+py -0p
+```
+
+Crie e ative um ambiente virtual com Python 3.10:
+
+```powershell
+py -3.10 -m venv .venv
+.venv\Scripts\Activate.ps1
+python -m pip install --upgrade pip
+python -m pip install -e .[dev]
+```
+
+## Como executar a CLI
+
+```bash
+pydf --help
+pydf examples/pdf_invoices --output output/invoices.xlsx
+```
+
+## Como usar como biblioteca
+
+```python
+from pydf import InvoiceProcessor, ProcessorConfig
+
+config = ProcessorConfig(
+    input_dir="examples/pdf_invoices",
+    output_excel="output/invoices.xlsx",
+)
+
+result = InvoiceProcessor(config).process()
+
+print(result.output_excel)
+for record in result.records:
+    print(record.file_name, record.invoice_number, record.invoice_date, record.status)
+```
+
+## Rodando testes
+
+```bash
+pytest -v
+```
+
+Se o ambiente ainda não estiver preparado:
+
+```bash
+pip install -e .[dev]
+pytest -v
+```
+
+## Build local
+
+```bash
+python -m build
+```
+
+## CI e releases no GitHub
+
+Este repositório inclui dois workflows:
+
+- `ci.yml`: roda testes e build em todo push e pull request
+- `release.yml`: gera os artefatos e anexa `dist/*` a uma release publicada manualmente
+
+Documentação detalhada:
+
+- [Guia principal da documentação](docs/README.pt-BR.md)
+- [Guia da CLI](docs/CLI.pt-BR.md)
+- [Guia da API](docs/API.pt-BR.md)
+- [Arquitetura](docs/ARCHITECTURE.pt-BR.md)
+- [CI/CD e Releases](docs/CI-CD.pt-BR.md)
+- [Ambiente Python, venv e troubleshooting](docs/ENVIRONMENT.pt-BR.md)
+- [Exemplos](examples/README.md)
+