feat: implement VPS-only deployment with GitHub release-based rollbacks

🚀 VPS-Only Deployment Strategy:
- Remove Docker registry complexity and build directly on VPS
- Enhanced automatic rollback on deployment failures
- Extended health checks with 6-attempt retry logic
- Smart image cleanup keeping 72-hour window for quick rollbacks
- Git-based deployment tracking and rollback points

🎯 Manual Deployment Workflow:
- Deploy any GitHub release directly from Actions UI
- Support for latest-release, specific-release, specific-commit, or current-main
- Flexible staging/production target selection
- Optional test skipping for emergency deployments
- Comprehensive deployment validation and automatic rollback

🔄 Enhanced Rollback Capabilities:
- GitHub Actions UI for deploying previous releases
- VPS rollback script for emergency local rollbacks
- Automatic rollback point creation before each deployment
- Multiple rollback methods for different scenarios
- Deployment history tracking and audit trail

✨ Key Benefits:
- No registry permissions issues - builds on VPS
- Enterprise-grade rollback control via GitHub releases
- Automatic failure detection and recovery
- Cost-effective single-VPS deployment strategy
- Maintains deployment safety without registry complexity

🛠️ Usage:
- Automatic: Push to main for latest deployment
- Manual: GitHub Actions → Manual Deployment → Select release/commit
- Emergency: SSH to VPS → ./scripts/rollback.sh production

🚀 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: mapedersen

.github/dependabot.yml

@@ -0,0 +1,121 @@
+version: 2
+updates:
+  # Enable version updates for .NET packages
+  - package-ecosystem: "nuget"
+    directory: "/backend"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "09:00"
+      timezone: "UTC"
+    open-pull-requests-limit: 5
+    reviewers:
+      - "@your-org/backend-team"
+    assignees:
+      - "@your-org/backend-team"
+    commit-message:
+      prefix: "deps(backend)"
+      include: "scope"
+    labels:
+      - "dependencies"
+      - "backend"
+      - "security"
+
+  # Enable version updates for npm packages (frontend)
+  - package-ecosystem: "npm"
+    directory: "/frontend"
+    schedule:
+      interval: "weekly"
+      day: "tuesday"
+      time: "09:00"
+      timezone: "UTC"
+    open-pull-requests-limit: 5
+    reviewers:
+      - "@your-org/frontend-team"
+    assignees:
+      - "@your-org/frontend-team"
+    commit-message:
+      prefix: "deps(frontend)"
+      include: "scope"
+    labels:
+      - "dependencies"
+      - "frontend"
+    ignore:
+      # Ignore major version updates for React (manual review preferred)
+      - dependency-name: "react"
+        update-types: ["version-update:semver-major"]
+      - dependency-name: "react-dom"
+        update-types: ["version-update:semver-major"]
+
+  # Enable version updates for npm packages (backend tools)
+  - package-ecosystem: "npm"
+    directory: "/backend"
+    schedule:
+      interval: "weekly"
+      day: "wednesday"
+      time: "09:00"
+      timezone: "UTC"
+    open-pull-requests-limit: 3
+    commit-message:
+      prefix: "deps(build)"
+      include: "scope"
+    labels:
+      - "dependencies"
+      - "build-tools"
+
+  # Enable version updates for Docker
+  - package-ecosystem: "docker"
+    directory: "/backend"
+    schedule:
+      interval: "weekly"
+      day: "thursday"
+      time: "09:00"
+      timezone: "UTC"
+    open-pull-requests-limit: 2
+    reviewers:
+      - "@your-org/devops-team"
+    commit-message:
+      prefix: "deps(docker)"
+      include: "scope"
+    labels:
+      - "dependencies"
+      - "docker"
+      - "infrastructure"
+
+  # Enable version updates for Docker (frontend)
+  - package-ecosystem: "docker"
+    directory: "/frontend"
+    schedule:
+      interval: "weekly"
+      day: "thursday"
+      time: "10:00"
+      timezone: "UTC"
+    open-pull-requests-limit: 2
+    reviewers:
+      - "@your-org/devops-team"
+    commit-message:
+      prefix: "deps(docker)"
+      include: "scope"
+    labels:
+      - "dependencies"
+      - "docker"
+      - "frontend"
+
+  # Enable version updates for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "friday"
+      time: "09:00"
+      timezone: "UTC"
+    open-pull-requests-limit: 3
+    reviewers:
+      - "@your-org/devops-team"
+    commit-message:
+      prefix: "deps(ci)"
+      include: "scope"
+    labels:
+      - "dependencies"
+      - "github-actions"
+      - "ci/cd"