release: ship ExcelAlchemy 2.0.0

.github/CODEOWNERS

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+* @RayCarterLab

.github/ISSUE_TEMPLATE/bug_report.yml

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+name: Bug report
+description: Report a reproducible problem in ExcelAlchemy
+title: "[Bug]: "
+labels:
+  - bug
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for taking the time to report a bug.
+        Please include enough detail for us to reproduce the issue quickly.
+  - type: textarea
+    id: summary
+    attributes:
+      label: Summary
+      description: What happened?
+      placeholder: A clear and concise description of the bug.
+    validations:
+      required: true
+  - type: textarea
+    id: reproduction
+    attributes:
+      label: Reproduction
+      description: Steps, sample code, or test data needed to reproduce the issue.
+      placeholder: |
+        1. Create model ...
+        2. Call ...
+        3. Observe ...
+      render: python
+    validations:
+      required: true
+  - type: textarea
+    id: expected
+    attributes:
+      label: Expected behavior
+      description: What did you expect to happen instead?
+    validations:
+      required: true
+  - type: input
+    id: version
+    attributes:
+      label: ExcelAlchemy version
+      placeholder: 1.1.0
+  - type: input
+    id: python-version
+    attributes:
+      label: Python version
+      placeholder: "3.10"
+  - type: textarea
+    id: environment
+    attributes:
+      label: Environment details
+      description: OS, dependency versions, storage backend details, or anything else that may matter.

.github/ISSUE_TEMPLATE/config.yml

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+blank_issues_enabled: false
+contact_links:
+  - name: Security issue
+    url: https://github.com/RayCarterLab/ExcelAlchemy/security/advisories/new
+    about: Please report sensitive security issues privately.

.github/ISSUE_TEMPLATE/feature_request.yml

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+name: Feature request
+description: Suggest an improvement or new capability
+title: "[Feature]: "
+labels:
+  - enhancement
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thanks for sharing an idea.
+        Please describe the problem and the desired outcome as clearly as you can.
+  - type: textarea
+    id: problem
+    attributes:
+      label: Problem statement
+      description: What problem are you trying to solve?
+    validations:
+      required: true
+  - type: textarea
+    id: proposal
+    attributes:
+      label: Proposed solution
+      description: What would you like ExcelAlchemy to do?
+    validations:
+      required: true
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Alternatives considered
+      description: What approaches or workarounds have you considered already?
+  - type: textarea
+    id: context
+    attributes:
+      label: Additional context
+      description: Add examples, screenshots, or related links if they help.

.github/PULL_REQUEST_TEMPLATE.md

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+## Summary
+
+- Describe the user-facing or engineering goal of this change.
+
+## Changes
+
+- List the most important implementation changes.
+
+## Validation
+
+- [ ] `uv run ruff format --check .`
+- [ ] `uv run ruff check .`
+- [ ] `uv run pyright`
+- [ ] `uv run pytest --cov=excelalchemy --cov-report=term-missing:skip-covered tests`
+
+## Checklist
+
+- [ ] I updated documentation when behavior or workflows changed.
+- [ ] I did not include generated files or local-only artifacts.
+- [ ] I confirmed this change does not require additional release steps.

.github/dependabot.yml

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+version: 2
+updates:
+  - package-ecosystem: 'github-actions'
+    directory: '/'
+    schedule:
+      interval: 'weekly'
+      day: 'monday'
+      time: '09:00'
+      timezone: 'Asia/Shanghai'
+    open-pull-requests-limit: 5
+    commit-message:
+      prefix: 'ci(deps)'
+    groups:
+      github-actions:
+        patterns:
+          - '*'
+    labels:
+      - 'dependencies'
+      - 'github-actions'
+
+  - package-ecosystem: 'pip'
+    directory: '/'
+    schedule:
+      interval: 'weekly'
+      day: 'monday'
+      time: '09:15'
+      timezone: 'Asia/Shanghai'
+    open-pull-requests-limit: 5
+    commit-message:
+      prefix: 'build(deps)'
+    groups:
+      python-production:
+        dependency-type: 'production'
+        patterns:
+          - '*'
+      python-development:
+        dependency-type: 'development'
+        patterns:
+          - '*'
+    labels:
+      - 'dependencies'
+      - 'python'
+
+  - package-ecosystem: 'pre-commit'
+    directory: '/'
+    schedule:
+      interval: 'weekly'
+      day: 'monday'
+      time: '09:30'
+      timezone: 'Asia/Shanghai'
+    open-pull-requests-limit: 3
+    commit-message:
+      prefix: 'chore(pre-commit)'
+    groups:
+      pre-commit-hooks:
+        patterns:
+          - '*'
+    labels:
+      - 'dependencies'
+      - 'pre-commit'

.github/workflows/ci.yml

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+name: CI
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+      - v2
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+permissions:
+  contents: read
+
+jobs:
+  ruff:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    permissions:
+      contents: read
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v5
+
+      - name: Set up Python 3.14
+        uses: actions/setup-python@v6
+        with:
+          python-version: '3.14'
+      - name: Set up uv
+        uses: astral-sh/setup-uv@v7
+        with:
+          enable-cache: true
+          cache-dependency-glob: |
+            pyproject.toml
+            uv.lock
+
+      - name: Sync development environment
+        run: uv sync --locked --extra development
+
+      - name: Run ruff
+        run: |
+          uv run ruff format --check .
+          uv run ruff check .
+
+  pyright:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+    permissions:
+      contents: read
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v5
+
+      - name: Set up Python 3.14
+        uses: actions/setup-python@v6
+        with:
+          python-version: '3.14'
+      - name: Set up uv
+        uses: astral-sh/setup-uv@v7
+        with:
+          enable-cache: true
+          cache-dependency-glob: |
+            pyproject.toml
+            uv.lock
+
+      - name: Sync development environment
+        run: uv sync --locked --extra development
+
+      - name: Run pyright
+        run: uv run pyright
+
+  tests:
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    permissions:
+      contents: read
+    env:
+      CODECOV_TOKEN: ${{ secrets.CODECOVEXCELALCHEMY }}
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ['3.12', '3.13', '3.14']
+
+    steps:
+      - name: Check out code
+        uses: actions/checkout@v5
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v6
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Set up uv
+        uses: astral-sh/setup-uv@v7
+        with:
+          enable-cache: true
+          cache-dependency-glob: |
+            pyproject.toml
+            uv.lock
+
+      - name: Sync development environment
+        run: uv sync --locked --extra development
+
+      - name: Run test suite
+        run: |
+          uv run pytest --cov=excelalchemy --cov-report=term-missing:skip-covered --cov-report=xml:coverage.xml --junitxml=pytest.xml tests
+
+      - name: Upload coverage artifact
+        if: always() && matrix.python-version == '3.14'
+        uses: actions/upload-artifact@v4
+        with:
+          name: test-reports-${{ matrix.python-version }}
+          path: |
+            coverage.xml
+            pytest.xml
+          if-no-files-found: warn
+          retention-days: 14
+
+      - name: Upload coverage to Codecov
+        if: matrix.python-version == '3.14' && env.CODECOV_TOKEN != ''
+        uses: codecov/codecov-action@v5
+        with:
+          files: coverage.xml
+          disable_search: true
+          token: ${{ env.CODECOV_TOKEN }}