Enable Dependabot & CodeQL

Author: jwinskye

.github/dependabot.yml

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+version: 2
+
+updates:
+  # Python dependencies (pip)
+  - package-ecosystem: "pip"
+    directory: "/"                  
+    schedule:
+      interval: "weekly"
+    open-pull-requests-limit: 10
+    rebase-strategy: "auto"
+    # Group minor/patch updates to reduce PR noise (Dependabot grouping)
+    groups:
+      pip-minor-and-patch:
+        patterns: ["*"]
+        update-types: ["minor", "patch"]
+
+  # GitHub Actions workflow dependencies
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+    open-pull-requests-limit: 10
+    groups:
+      gha-all:
+        patterns: ["*"]

.github/workflows/codeql.yml

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+name: "CodeQL"
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+  schedule:
+    - cron: "0 3 * * 1" # Every Monday at 03:00 UTC
+
+jobs:
+  analyze:
+    name: Analyze (CodeQL)
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ "python" ]
+
+    steps:
+      - name: Checkout repository
+      # v4 of checkout is recommended
+        uses: actions/checkout@v4
+
+      # Optional but helpful: ensures a Python is available if your repo has build steps
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.x"
+
+      # Optional: install deps so CodeQL can better understand imports (won't fail if file is missing)
+      - name: Install dependencies (optional)
+        run: |
+          if [ -f requirements.txt ]; then
+            pip install -r requirements.txt
+          fi
+
+      - name: Initialize CodeQL
+        uses: github/codeql-action/init@v3
+        with:
+          languages: ${{ matrix.language }}
+
+      # For Python, autobuild is generally no-op, but keep it for consistency
+      - name: Autobuild
+        uses: github/codeql-action/autobuild@v3
+
+      - name: Perform CodeQL Analysis
+        uses: github/codeql-action/analyze@v3