Update README and docs to match cryptoscan style

- Rewrite README with clearer structure and correct installation instructions
- Add CI workflow with tests across Python 3.10-3.12
- Add coverage reporting via Codecov
- Simplify INSTALLATION.md with source-based install
- Add badges for CI, coverage, license, Python version

Author: abdelsfane

.github/workflows/ci.yml

@@ -0,0 +1,67 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.10', '3.11', '3.12']
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e ".[dev,all]"
+
+      - name: Lint with ruff
+        run: ruff check src/qbom
+
+      - name: Type check with mypy
+        run: mypy src/qbom --ignore-missing-imports
+
+      - name: Run tests with coverage
+        run: pytest --cov=src/qbom --cov-report=xml --cov-report=term-missing
+
+      - name: Upload coverage to Codecov
+        if: matrix.python-version == '3.11'
+        uses: codecov/codecov-action@v4
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          files: ./coverage.xml
+          fail_ci_if_error: false
+
+  quality:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.11'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e ".[dev]"
+
+      - name: Check formatting
+        run: ruff format --check src/qbom
+
+      - name: Security check with bandit
+        run: |
+          pip install bandit
+          bandit -r src/qbom -ll || true