feat: initial commit for regex-humanizer-cli

- Add regex parser, translator, and test generator
- Add CLI with explain, test, interactive commands
- Add multi-flavor support (PCRE, JavaScript, Python)
- Add Gitea Actions CI workflow
- Add comprehensive README documentation

.gitea/workflows/regex-humanizer-cli.yml

@@ -0,0 +1,38 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    timeout: 600
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+          cache: 'pip'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install -e .
+          python -m pip install pytest pytest-cov ruff
+
+      - name: Run tests
+        run: python -m pytest tests/ -v --tb=short
+
+      - name: Run linting
+        run: python -m ruff check regex_humanizer/
+
+      - name: Run type checking
+        run: python -m pip install mypy && python -m mypy regex_humanizer/ --ignore-missing-imports