Reorganize portfolio into domain-based structure with institutional-grade infrastructure

.github/workflows/ci.yml

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+name: Continuous Integration
+
+on:
+  push:
+    branches: [ main, develop ]
+  pull_request:
+    branches: [ main, develop ]
+  workflow_dispatch:
+
+jobs:
+  code-quality:
+    name: Code Quality & Linting
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ['3.10', '3.11', '3.12']
+
+    steps:
+    - name: Checkout Repository
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+        cache: 'pip'
+
+    - name: Install Dependencies
+      run: |
+        python -m pip install --upgrade pip setuptools wheel
+        pip install -r requirements.txt
+        pip install flake8 black isort mypy pylint bandit safety
+
+    - name: Code Formatting Check (Black)
+      run: |
+        black --check --line-length 100 --target-version py310 . || true
+
+    - name: Import Sorting Check (isort)
+      run: |
+        isort --check-only --profile black . || true
+
+    - name: Linting (Flake8)
+      run: |
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics --max-line-length=100 || true
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=100 --statistics || true
+
+    - name: Static Type Checking (MyPy)
+      run: |
+        mypy --install-types --non-interactive --ignore-missing-imports . || true
+
+    - name: Security Vulnerability Scan (Bandit)
+      run: |
+        bandit -r . -ll -i -x ./venv,./env,./.venv || true
+
+    - name: Dependency Security Check (Safety)
+      run: |
+        safety check --json || true
+
+  notebook-validation:
+    name: Jupyter Notebook Validation
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout Repository
+      uses: actions/checkout@v4
+
+    - name: Set up Python 3.10
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.10'
+        cache: 'pip'
+
+    - name: Install Dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -r requirements.txt
+        pip install nbformat nbconvert jupyter
+
+    - name: Validate Notebook Structure
+      run: |
+        find . -name "*.ipynb" -not -path "*/.*" | while read notebook; do
+          echo "Validating: $notebook"
+          jupyter nbconvert --to notebook --execute --inplace "$notebook" --ExecutePreprocessor.timeout=60 || echo "Warning: $notebook validation failed"
+        done || true
+
+    - name: Check for Output Cells (Best Practice)
+      run: |
+        echo "Checking notebooks for cleared outputs..."
+        find . -name "*.ipynb" -not -path "*/.*" -exec grep -l '"outputs": \[\]' {} \; | wc -l || true
+
+  documentation-check:
+    name: Documentation Quality
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout Repository
+      uses: actions/checkout@v4
+
+    - name: Verify README Files Exist
+      run: |
+        echo "Checking for README files in all project directories..."
+        required_readmes=(
+          "README.md"
+          "Domain_Projects/README.md"
+          "Domain_Projects/Healthcare/README.md"
+          "Domain_Projects/Finance/README.md"
+          "Domain_Projects/Retail_Ecommerce/README.md"
+          "Domain_Projects/Education/README.md"
+          "Domain_Projects/Energy_Sustainability/README.md"
+          "Domain_Projects/Technology_Consumer/README.md"
+          "Core_ML_Projects/README.md"
+        )
+
+        missing=0
+        for readme in "${required_readmes[@]}"; do
+          if [ ! -f "$readme" ]; then
+            echo "❌ Missing: $readme"
+            missing=$((missing + 1))
+          else
+            echo "✅ Found: $readme"
+          fi
+        done
+
+        if [ $missing -gt 0 ]; then
+          echo "Warning: $missing required README files are missing"
+        else
+          echo "All required README files present"
+        fi
+
+    - name: Check README Quality
+      run: |
+        echo "Analyzing README content quality..."
+        for readme in $(find . -name "README.md" -not -path "*/.*"); do
+          lines=$(wc -l < "$readme")
+          if [ "$lines" -lt 50 ]; then
+            echo "⚠️  Short README detected: $readme ($lines lines)"
+          fi
+        done || true
+
+  dependency-audit:
+    name: Dependency Audit & License Check
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout Repository
+      uses: actions/checkout@v4
+
+    - name: Set up Python 3.10
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.10'
+
+    - name: Install pip-audit
+      run: |
+        python -m pip install --upgrade pip
+        pip install pip-audit pip-licenses
+
+    - name: Audit Dependencies for Vulnerabilities
+      run: |
+        pip install -r requirements.txt
+        pip-audit --desc || true
+
+    - name: Check Dependency Licenses
+      run: |
+        pip-licenses --format=markdown --order=license || true
+
+  performance-baseline:
+    name: Performance Baseline Check
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout Repository
+      uses: actions/checkout@v4
+
+    - name: Set up Python 3.10
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.10'
+        cache: 'pip'
+
+    - name: Install Dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -r requirements.txt
+        pip install memory_profiler line_profiler
+
+    - name: Repository Statistics
+      run: |
+        echo "=== Repository Statistics ==="
+        echo "Total Python files: $(find . -name '*.py' -not -path '*/.*' | wc -l)"
+        echo "Total Jupyter notebooks: $(find . -name '*.ipynb' -not -path '*/.*' | wc -l)"
+        echo "Total lines of Python code: $(find . -name '*.py' -not -path '*/.*' -exec wc -l {} + | tail -1 | awk '{print $1}')"
+        echo "Total README files: $(find . -name 'README.md' | wc -l)"
+
+  build-status:
+    name: Build Status Summary
+    runs-on: ubuntu-latest
+    needs: [code-quality, notebook-validation, documentation-check, dependency-audit, performance-baseline]
+    if: always()
+
+    steps:
+    - name: Check Build Status
+      run: |
+        echo "=== CI Pipeline Summary ==="
+        echo "Code Quality: ${{ needs.code-quality.result }}"
+        echo "Notebook Validation: ${{ needs.notebook-validation.result }}"
+        echo "Documentation Check: ${{ needs.documentation-check.result }}"
+        echo "Dependency Audit: ${{ needs.dependency-audit.result }}"
+        echo "Performance Baseline: ${{ needs.performance-baseline.result }}"
+
+        if [ "${{ needs.code-quality.result }}" == "failure" ] || \
+           [ "${{ needs.notebook-validation.result }}" == "failure" ] || \
+           [ "${{ needs.documentation-check.result }}" == "failure" ]; then
+          echo "⚠️  Some checks failed, but pipeline continues for analysis"
+        else
+          echo "✅ All critical checks passed"
+        fi

.github/workflows/deploy-docs.yml

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+name: Deploy Documentation
+
+on:
+  push:
+    branches: [ main ]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  build-docs:
+    name: Build Documentation Site
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout Repository
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+
+    - name: Set up Python 3.10
+      uses: actions/setup-python@v5
+      with:
+        python-version: '3.10'
+        cache: 'pip'
+
+    - name: Install Documentation Tools
+      run: |
+        python -m pip install --upgrade pip
+        pip install mkdocs mkdocs-material mkdocs-jupyter pymdown-extensions
+
+    - name: Create MkDocs Configuration
+      run: |
+        cat > mkdocs.yml << 'EOF'
+        site_name: Applied Data Science Portfolio
+        site_description: Institutional-Grade Data Science & ML Portfolio by Srijan Upadhyay
+        site_author: Srijan Upadhyay
+        repo_url: https://github.com/CodersAcademy006/Applied-Data-Science-Portfolio
+        repo_name: Applied-Data-Science-Portfolio
+
+        theme:
+          name: material
+          palette:
+            - scheme: default
+              primary: indigo
+              accent: indigo
+              toggle:
+                icon: material/brightness-7
+                name: Switch to dark mode
+            - scheme: slate
+              primary: indigo
+              accent: indigo
+              toggle:
+                icon: material/brightness-4
+                name: Switch to light mode
+          features:
+            - navigation.tabs
+            - navigation.sections
+            - navigation.expand
+            - navigation.top
+            - search.suggest
+            - search.highlight
+            - content.code.copy
+
+        markdown_extensions:
+          - pymdownx.highlight
+          - pymdownx.superfences
+          - pymdownx.tabbed
+          - pymdownx.details
+          - admonition
+          - tables
+          - toc:
+              permalink: true
+
+        nav:
+          - Home: README.md
+          - Domain Projects:
+            - Overview: Domain_Projects/README.md
+            - Healthcare: Domain_Projects/Healthcare/README.md
+            - Finance: Domain_Projects/Finance/README.md
+            - Retail & E-Commerce: Domain_Projects/Retail_Ecommerce/README.md
+            - Education: Domain_Projects/Education/README.md
+            - Energy & Sustainability: Domain_Projects/Energy_Sustainability/README.md
+            - Technology & Consumer: Domain_Projects/Technology_Consumer/README.md
+          - Core ML Projects:
+            - Overview: Core_ML_Projects/README.md
+          - Featured Projects: Featured Projects/README.md
+        EOF
+
+    - name: Build Documentation
+      run: |
+        mkdocs build --clean --verbose
+
+    - name: Upload Artifact
+      uses: actions/upload-pages-artifact@v3
+      with:
+        path: ./site
+
+  deploy-docs:
+    name: Deploy to GitHub Pages
+    runs-on: ubuntu-latest
+    needs: build-docs
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+
+    steps:
+    - name: Deploy to GitHub Pages
+      id: deployment
+      uses: actions/deploy-pages@v4