add container-based linting workflow using Forgejo Container Registry

.forgejo/workflows/lint.yml

@@ -8,9 +8,11 @@ on:
   workflow_dispatch:
 
 jobs:
-  yaml-lint:
-    name: Lint YAML Files
+  lint-all:
+    name: Lint All Code
     runs-on: ubuntu-latest
+    container:
+      image: git.raines.xyz/robojerk/deb-mock-linter:latest
     steps:
     - name: Checkout code
       run: |
@@ -18,47 +20,16 @@ jobs:
         cp -r /tmp/deb-mock/* .
         cp -r /tmp/deb-mock/.* . 2>/dev/null || true
     
-    - name: Install yamllint
-      run: |
-        sudo apt update
-        sudo apt install -y yamllint
-    
     - name: Lint YAML files
       run: |
         echo "=== Linting YAML files ==="
         yamllint .forgejo/workflows/ deb_mock/configs/ test-config.yaml
         echo "✅ YAML linting completed successfully"
-
-  python-lint:
-    name: Lint Python Code
-    runs-on: ubuntu-latest
-    steps:
-    - name: Checkout code
-      run: |
-        git clone https://git.raines.xyz/robojerk/deb-mock.git /tmp/deb-mock
-        cp -r /tmp/deb-mock/* .
-        cp -r /tmp/deb-mock/.* . 2>/dev/null || true
-    
-    - name: Set up Python
-      run: |
-        sudo apt update
-        sudo apt install -y python3.12 python3.12-venv python3-pip
-    
-    - name: Set up virtual environment
-      run: |
-        python3 -m venv venv
-        source venv/bin/activate
-        pip install --upgrade pip
-    
-    - name: Install Python linters
-      run: |
-        source venv/bin/activate
-        pip install flake8 black isort bandit
     
     - name: Lint Python files
       run: |
-        source venv/bin/activate
         echo "=== Linting Python files ==="
+        source /opt/venv/bin/activate
         echo "Running flake8..."
         flake8 deb_mock/ tests/ --max-line-length=120 --ignore=E203,W503
         echo "Running black check..."
@@ -68,42 +39,12 @@ jobs:
         echo "Running bandit security check..."
         bandit -r deb_mock/ -f json -o bandit-report.json || true
         echo "✅ Python linting completed successfully"
-
-  shell-lint:
-    name: Lint Shell Scripts
-    runs-on: ubuntu-latest
-    steps:
-    - name: Checkout code
-      run: |
-        git clone https://git.raines.xyz/robojerk/deb-mock.git /tmp/deb-mock
-        cp -r /tmp/deb-mock/* .
-        cp -r /tmp/deb-mock/.* . 2>/dev/null || true
-    
-    - name: Install shellcheck
-      run: |
-        sudo apt update
-        sudo apt install -y shellcheck
     
     - name: Lint shell scripts
       run: |
         echo "=== Linting shell scripts ==="
         find . -name "*.sh" -exec shellcheck {} \;
         echo "✅ Shell linting completed successfully"
-
-  debian-lint:
-    name: Lint Debian Files
-    runs-on: ubuntu-latest
-    steps:
-    - name: Checkout code
-      run: |
-        git clone https://git.raines.xyz/robojerk/deb-mock.git /tmp/deb-mock
-        cp -r /tmp/deb-mock/* .
-        cp -r /tmp/deb-mock/.* . 2>/dev/null || true
-    
-    - name: Install Debian linting tools
-      run: |
-        sudo apt update
-        sudo apt install -y lintian devscripts
     
     - name: Lint Debian files
       run: |
@@ -113,22 +54,6 @@ jobs:
         echo "Checking debian/control..."
         lintian --check debian/control || echo "Note: lintian check completed"
         echo "✅ Debian linting completed successfully"
-
-  markdown-lint:
-    name: Lint Documentation
-    runs-on: ubuntu-latest
-    steps:
-    - name: Checkout code
-      run: |
-        git clone https://git.raines.xyz/robojerk/deb-mock.git /tmp/deb-mock
-        cp -r /tmp/deb-mock/* .
-        cp -r /tmp/deb-mock/.* . 2>/dev/null || true
-    
-    - name: Install markdownlint
-      run: |
-        sudo apt update
-        sudo apt install -y nodejs npm
-        sudo npm install -g markdownlint-cli
     
     - name: Lint documentation
       run: |