ci: add GitHub Actions workflows

- CI workflow: lint, format, test, and build on PR/push
- Publish workflow: automated npm release on GitHub releases
- Configure Dependabot for dependency updates
- Add issue and PR templates

Author: Jszigeti

.github/ISSUE_TEMPLATE/bug_report.md

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+---
+name: Bug Report
+about: Report a bug to help us improve
+title: '[BUG] '
+labels: bug
+assignees: ''
+---
+
+## Bug Description
+
+A clear and concise description of what the bug is.
+
+## Steps to Reproduce
+
+1. Run command '...'
+2. Select options '...'
+3. See error
+
+## Expected Behavior
+
+What you expected to happen.
+
+## Actual Behavior
+
+What actually happened.
+
+## Environment
+
+- **OS**: [e.g., macOS 14, Windows 11, Ubuntu 22.04]
+- **Node.js version**: [e.g., 18.17.0]
+- **npm/yarn/pnpm version**: [e.g., npm 9.8.1]
+- **launchts version**: [e.g., 1.0.0]
+
+## Screenshots
+
+If applicable, add screenshots to help explain your problem.
+
+## Additional Context
+
+Add any other context about the problem here.

.github/ISSUE_TEMPLATE/feature_request.md

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+---
+name: Feature Request
+about: Suggest an idea for this project
+title: '[FEATURE] '
+labels: enhancement
+assignees: ''
+---
+
+## Feature Description
+
+A clear and concise description of the feature you'd like to see.
+
+## Problem it Solves
+
+Describe the problem this feature would solve. Ex: I'm always frustrated when [...]
+
+## Proposed Solution
+
+Describe how you envision this feature working.
+
+## Alternatives Considered
+
+Describe any alternative solutions or features you've considered.
+
+## Additional Context
+
+Add any other context, mockups, or examples about the feature request here.
+
+## Checklist
+
+- [ ] I've searched existing issues to ensure this feature hasn't been requested
+- [ ] This feature aligns with the project's goals
+- [ ] I'm willing to contribute a PR for this feature

.github/PULL_REQUEST_TEMPLATE.md

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+# Pull Request
+
+## Description
+
+Brief description of what this PR does.
+
+## Related Issue
+
+Closes #(issue number)
+
+## Type of Change
+
+- [ ] Bug fix (non-breaking change which fixes an issue)
+- [ ] New feature (non-breaking change which adds functionality)
+- [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Documentation update
+- [ ] Test update
+- [ ] Code style update (formatting, renaming)
+- [ ] Refactoring (no functional changes)
+
+## Checklist
+
+- [ ] My code follows the project's code style
+- [ ] I have run `npm run lint` and `npm run format`
+- [ ] I have added tests that prove my fix/feature works
+- [ ] All tests pass (`npm test`)
+- [ ] I have updated the documentation accordingly
+- [ ] My commits follow the [Conventional Commits](https://www.conventionalcommits.org/) specification
+
+## Testing
+
+Describe how you tested your changes:
+
+```bash
+# Example commands
+npm run build
+npm link
+launchts test-project --yes
+```
+
+## Screenshots (if applicable)
+
+Add screenshots to demonstrate the changes.
+
+## Additional Notes
+
+Any additional information that reviewers should know.

.github/dependabot.yml

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+version: 2
+updates:
+  # Enable version updates for npm dependencies
+  - package-ecosystem: 'npm'
+    directory: '/'
+    schedule:
+      interval: 'weekly'
+      day: 'monday'
+    open-pull-requests-limit: 5
+    labels:
+      - 'dependencies'
+      - 'automated'
+    commit-message:
+      prefix: 'chore'
+      include: 'scope'
+    reviewers:
+      - 'Jszigeti'
+    assignees:
+      - 'Jszigeti'
+    # Group minor and patch updates together
+    groups:
+      development-dependencies:
+        dependency-type: 'development'
+        update-types:
+          - 'minor'
+          - 'patch'
+      production-dependencies:
+        dependency-type: 'production'
+        update-types:
+          - 'minor'
+          - 'patch'
+
+  # Enable version updates for GitHub Actions
+  - package-ecosystem: 'github-actions'
+    directory: '/'
+    schedule:
+      interval: 'weekly'
+      day: 'monday'
+    labels:
+      - 'dependencies'
+      - 'github-actions'
+    commit-message:
+      prefix: 'ci'

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Use Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+      - run: npm ci
+      - run: npm run lint
+      - run: npm run format -- --check
+      - run: npm test -- --run
+      - run: npm run build

.github/workflows/publish.yml

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+name: Publish to npm and GitHub Release
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Use Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18'
+          registry-url: 'https://registry.npmjs.org'
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Lint
+        run: npm run lint
+
+      - name: Format check
+        run: npm run format -- --check
+
+      - name: Run tests
+        run: npm test -- --run
+
+      - name: Build
+        run: npm run build
+
+      - name: Publish to npm
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
+        run: npm publish --access public
+
+      - name: Upload build artifact to GitHub Release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: dist/**/*
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}