docs: eliminate redundant DNS guide and consolidate documentation

- Remove docs/guides/providers/hetzner/hetzner-dns-setup-guide.md (650 lines)
- Update all references to point to deployment-guide.md Part 3: DNS Configuration
- Complete documentation consolidation following user preference for elimination over backward compatibility
- Files updated:
  * hetzner-cloud-setup-guide.md: redirect DNS references to consolidated guide
  * guides/README.md: remove DNS guide from file tree structure
  * providers/README.md: remove DNS guide from provider structure
  * hetzner/README.md: replace DNS guide reference with deployment guide link
  * refactoring/hetzner-token-simplification.md: update documentation inventory

This completes Phase 1 documentation consolidation. All DNS configuration is now
covered comprehensively in the deployment guide Part 3, eliminating duplication
while maintaining complete functionality.

Ready for Phase 2: Create new Hetzner API tokens and test them.

Author: josecelano

.github/copilot-instructions.md

@@ -239,7 +239,7 @@ Comprehensive deployment, configuration, and testing guides are available in `do
 
 | Guide                                                                      | Purpose                         | Time   | Use Case            |
 | -------------------------------------------------------------------------- | ------------------------------- | ------ | ------------------- |
-| [Cloud Deployment Guide](../docs/guides/cloud-deployment-guide.md)         | General cloud deployment        | 30 min | First deployment    |
+| [Deployment Guide](../docs/guides/deployment-guide.md)                     | Complete deployment guide       | 30 min | First deployment    |
 | [Integration Testing Guide](../docs/guides/integration-testing-guide.md)   | Complete infrastructure testing | 15 min | Development         |
 | [Smoke Testing Guide](../docs/guides/smoke-testing-guide.md)               | Quick functionality validation  | 5 min  | Post-deployment     |
 | [DNS Setup for Testing](../docs/guides/dns-setup-for-testing.md)           | DNS configuration               | 10 min | Domain setup        |

README.md

@@ -150,7 +150,7 @@ peer connections, and system health.
 
 ## 🚀 Quick Start
 
-**New users start here**: [**Deployment Guide**](docs/guides/cloud-deployment-guide.md) -
+**New users start here**: [**Deployment Guide**](docs/guides/deployment-guide.md) -
 Complete guide for deploying Torrust Tracker locally or in the cloud
 
 For detailed setup instructions, see the specific documentation:
@@ -211,7 +211,7 @@ make dev-deploy ENVIRONMENT=local      # Does all steps 3-4
 
 ### General Documentation
 
-- [Deployment Guide](docs/guides/cloud-deployment-guide.md) - **Main deployment
+- [Deployment Guide](docs/guides/deployment-guide.md) - **Main deployment
   guide** for local development and planned cloud deployment
 - [Documentation Structure](docs/README.md) - Cross-cutting documentation
 - [Architecture Decisions](docs/adr/) - Design decisions and rationale

docs/README.md

@@ -43,23 +43,13 @@ documentation that affects the project as a whole or provides reference material
 - [SSH Host Key Verification](infrastructure/ssh-host-key-verification.md) -
   Explains and resolves SSH host key verification warnings in VM development
 
-### 📚 [`guides/`](guides/) (User and Developer Guides)
-
-**High-level guides and end-to-end workflows** - For complete procedures
-that span multiple components.
-
-**Current Guides:**
-
-- [Integration Testing Guide](guides/integration-testing-guide.md) - Step-by-step
-  guide for running integration tests following twelve-factor methodology
-- [Infrastructure Quick Start Guide](../infrastructure/docs/quick-start.md) - Fast
-  setup guide for getting started quickly with local development
-- [Cloud Deployment Guide](guides/cloud-deployment-guide.md) - Complete deployment
-  guide for local development and planned cloud deployment
-- [Grafana Setup Guide](guides/grafana-setup-guide.md) - Manual setup and
-  configuration of Grafana monitoring dashboards
-- [Smoke Testing Guide](guides/smoke-testing-guide.md) - End-to-end testing
-  using official Torrust client tools
+### User Guides
+
+Deployment, configuration, and testing guides for various scenarios:
+
+- [Deployment Guide](guides/deployment-guide.md) - Complete deployment
+  guide for local and cloud environments
+- [Integration Testing Guide](guides/integration-testing-guide.md) -
 
 ### 🔧 [`refactoring/`](refactoring/) (Refactoring Documentation)
 

docs/guides/README.md

@@ -10,11 +10,10 @@ guides/
 ├── README.md                              # This file - guides overview
 ├── providers/                             # Provider-specific deployment guides
 │   ├── README.md                          # Providers overview
-│   └── hetzner/                           # Hetzner Cloud + DNS guides
+│   └── hetzner/                           # Hetzner Cloud guides
 │       ├── README.md                      # Hetzner integration overview
-│       ├── hetzner-cloud-setup-guide.md  # Hetzner Cloud server setup
-│       └── hetzner-dns-setup-guide.md    # Hetzner DNS configuration
-├── cloud-deployment-guide.md             # General cloud deployment guide
+│       └── hetzner-cloud-setup-guide.md  # Hetzner Cloud server setup
+├── deployment-guide.md                   # Complete deployment guide (consolidated)
 ├── dns-setup-for-testing.md              # DNS configuration for testing
 ├── grafana-setup-guide.md                # Grafana monitoring setup
 ├── grafana-subdomain-setup.md            # Grafana subdomain configuration
@@ -28,11 +27,11 @@ guides/
 
 ### 🚀 Getting Started
 
-| Guide                                                     | Description              | Time   | Use Case         |
-| --------------------------------------------------------- | ------------------------ | ------ | ---------------- |
-| [Cloud Deployment Guide](cloud-deployment-guide.md)       | General cloud deployment | 30 min | First deployment |
-| [Integration Testing Guide](integration-testing-guide.md) | Complete testing setup   | 15 min | Development      |
-| [Smoke Testing Guide](smoke-testing-guide.md)             | Quick validation         | 5 min  | Post-deployment  |
+| Guide                                                     | Description               | Time   | Use Case         |
+| --------------------------------------------------------- | ------------------------- | ------ | ---------------- |
+| [Deployment Guide](deployment-guide.md)                   | Complete deployment guide | 30 min | First deployment |
+| [Integration Testing Guide](integration-testing-guide.md) | Complete testing setup    | 15 min | Development      |
+| [Smoke Testing Guide](smoke-testing-guide.md)             | Quick validation          | 5 min  | Post-deployment  |
 
 ### ☁️ Cloud Providers
 
@@ -91,7 +90,7 @@ guides/
 
 ### For New Users
 
-1. **Start Here**: [Cloud Deployment Guide](cloud-deployment-guide.md)
+1. **Start Here**: [Deployment Guide](deployment-guide.md)
 2. **Choose Provider**: [Providers Directory](providers/)
 3. **Validate**: [Smoke Testing Guide](smoke-testing-guide.md)
 4. **Monitor**: [Grafana Setup Guide](grafana-setup-guide.md)