Configure high-security settings for documentation-only repository

.github/workflows/security-check.yml

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+# This workflow helps maintain repository security by monitoring for unwanted changes
+name: Repository Security Check
+
+on:
+  pull_request:
+    branches: [ main ]
+  push:
+    branches: [ main ]
+
+jobs:
+  security-check:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v4
+
+    - name: Verify repository contains only documentation
+      run: |
+        echo "Checking repository contents..."
+
+        # Define allowed file extensions and names
+        ALLOWED_EXTENSIONS=("*.md" "*.txt" "*.yml" "*.yaml")
+        ALLOWED_FILES=("LICENSE" ".gitignore")
+
+        # Check if any files have executable permission bits set
+        EXECUTABLES=$(find . -type f -perm -111 -not -path "./.git/*" -not -path "./.github/*" | wc -l)
+
+        if [ "$EXECUTABLES" -gt 0 ]; then
+          echo "Error: Executable files found. This repository should only contain documentation."
+          find . -type f -perm -111 -not -path "./.git/*" -not -path "./.github/*"
+          exit 1
+        fi
+
+        # Build find command with allowed file types
+        FIND_CMD="find . -type f -not -path \"./.git/*\" -not -path \"./.github/*\""
+        for ext in "${ALLOWED_EXTENSIONS[@]}"; do
+          FIND_CMD="$FIND_CMD -not -name \"$ext\""
+        done
+        for file in "${ALLOWED_FILES[@]}"; do
+          FIND_CMD="$FIND_CMD -not -name \"$file\""
+        done
+
+        # Check for disallowed file types
+        DISALLOWED=$(eval "$FIND_CMD" | wc -l)
+
+        if [ "$DISALLOWED" -gt 0 ]; then
+          echo "Warning: Non-documentation files detected:"
+          eval "$FIND_CMD"
+        fi
+
+        echo "Repository security check completed successfully."

.gitignore

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+# Editor and IDE files
+.vscode/
+.idea/
+*.swp
+*.swo
+*~
+.DS_Store
+
+# Temporary files
+*.tmp
+*.temp
+/tmp/
+
+# Build artifacts (should not exist in this repo, but just in case)
+dist/
+build/
+*.o
+*.exe
+*.dll
+*.so
+*.dylib
+
+# Logs
+*.log
+
+# OS generated files
+Thumbs.db

REPOSITORY_SETTINGS.md

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+# GitHub Repository Security Settings
+
+This document provides instructions for configuring high-security settings for this repository.
+
+## Required Manual Configuration Steps
+
+The following settings must be configured through the GitHub repository settings UI:
+
+### 1. Disable Forks
+
+Navigate to: **Settings → General → Features**
+
+- [ ] Uncheck "Allow forking"
+
+### 2. Disable Downloads
+
+Navigate to: **Settings → General → Features**
+
+- [ ] Uncheck "Releases" (prevents creating downloadable releases)
+- [ ] Consider disabling "Packages" if enabled
+
+### 3. Branch Protection Rules
+
+Navigate to: **Settings → Branches → Branch protection rules**
+
+Create a rule for the `main` branch with the following settings:
+
+- [ ] Require pull request reviews before merging
+- [ ] Dismiss stale pull request approvals when new commits are pushed
+- [ ] Require status checks to pass before merging
+- [ ] Require branches to be up to date before merging
+- [ ] Require conversation resolution before merging
+- [ ] Do not allow bypassing the above settings
+
+### 4. General Security Settings
+
+Navigate to: **Settings → Code security and analysis**
+
+- [ ] Enable "Private vulnerability reporting" if available
+- [ ] Enable "Dependency graph"
+- [ ] Enable "Dependabot alerts" if applicable
+
+### 5. Access Control
+
+Navigate to: **Settings → Collaborators and teams**
+
+- [ ] Review and minimize collaborator access
+- [ ] Ensure only authorized users have write access
+
+## Verification
+
+After applying these settings, verify:
+
+1. Visitors cannot fork the repository
+2. There are no downloadable releases or archives available
+3. Direct pushes to the main branch are blocked
+4. Only authorized collaborators can make changes
+
+## Notes
+
+- These settings protect the integrity of your profile README
+- The repository remains publicly viewable but contributions are restricted
+- Changes can only be made by authorized collaborators through pull requests

SECURITY.md

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+# Security Policy
+
+## Repository Purpose
+
+This repository serves as a personal profile README hosting space. It contains no executable code and is intended solely for displaying extended profile information.
+
+## Security Configuration
+
+This repository has been configured with high security settings:
+
+- **Forks**: Disabled to prevent unauthorized copies
+- **Downloads**: Repository downloads should be disabled as there is no distributable content
+- **Branch Protection**: Main branch should be protected to prevent unauthorized modifications
+
+## Reporting Security Issues
+
+If you discover any security concerns with this repository, please contact the repository owner directly through GitHub.
+
+## Security Best Practices Applied
+
+1. No executable code to minimize attack surface
+2. Read-only access for general visitors
+3. Minimal repository permissions
+4. No external dependencies or build processes

SECURITY_SETUP.md

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+# Security Configuration Guide
+
+This repository has been configured for high security as a documentation-only profile README host.
+
+## What's Been Implemented
+
+### 1. Security Documentation (`SECURITY.md`)
+- Documents the repository's security policy
+- Explains the purpose and security configuration
+- Provides contact information for security concerns
+
+### 2. Repository Settings Guide (`REPOSITORY_SETTINGS.md`)
+- Step-by-step instructions for configuring GitHub repository settings
+- Includes checklist for disabling forks and downloads
+- Branch protection configuration guidance
+- Access control recommendations
+
+### 3. Automated Security Checks (`.github/workflows/security-check.yml`)
+- GitHub Actions workflow that runs on every push and pull request
+- Verifies repository contains only documentation files
+- Prevents introduction of executable files
+- Alerts if unexpected file types are added
+
+## Required Manual Steps
+
+**Important:** The following settings MUST be configured manually in the GitHub repository settings:
+
+1. **Disable Forks**
+   - Go to: Settings → General → Features
+   - Uncheck "Allow forking"
+
+2. **Disable Downloads/Releases**
+   - Go to: Settings → General → Features
+   - Uncheck "Releases"
+
+3. **Configure Branch Protection**
+   - Go to: Settings → Branches
+   - Add protection rules for the `main` branch
+   - Require pull request reviews
+   - Require status checks to pass
+
+See `REPOSITORY_SETTINGS.md` for detailed instructions.
+
+## Security Benefits
+
+- ✅ No executable code = minimal attack surface
+- ✅ Automated monitoring of repository contents
+- ✅ Prevention of unauthorized forks (when configured)
+- ✅ Protected main branch (when configured)
+- ✅ Clear security policy for visitors
+- ✅ Documented security practices
+
+## Verification
+
+After applying manual settings:
+1. Try to fork the repository (should be blocked)
+2. Check that no download options are available
+3. Attempt to push directly to main (should require PR)
+4. Verify GitHub Actions workflow is running
+
+## Next Steps
+
+1. Review and apply the manual configuration steps in `REPOSITORY_SETTINGS.md`
+2. Monitor the GitHub Actions runs to ensure the security check workflow passes
+3. Update the `README.md` with any additional profile information as needed
+4. Periodically review security settings to ensure they remain configured correctly
+
+## Support
+
+For questions about these security configurations, refer to the individual documentation files or contact the repository owner.