feat: [#28] Infrastructure preparation for Phase 4.7 staging deployment

- Rename hetzner.env to hetzner-staging.env for staging account isolation
- Fix markdownlint MD013 line-length violations in documentation
- Ensure all CI tests pass before staging deployment execution

Addresses staging environment preparation requirements for Issue #28
Phase 4.7 implementation with proper account separation.

Author: josecelano

.yamllint-ci.yml

@@ -2,6 +2,7 @@ extends: default
 
 ignore: |
   application/storage/
+  application/config
 
 rules:
   line-length:

Makefile

@@ -13,6 +13,9 @@
 ENVIRONMENT_TYPE ?= development
 ENVIRONMENT_FILE ?= development-libvirt
 
+# Test directories
+INFRA_TESTS_DIR = infrastructure/tests
+
 # Default target - show help when no target specified
 .DEFAULT_GOAL := help
 

docs/guides/staging-deployment-testing-guide.md

@@ -1,10 +1,13 @@
 # Staging Deployment Testing Guide
 
-**Purpose**: Manual testing of staging environment deployments on remote cloud providers to validate functionality before production deployment.
+**Purpose**: Manual testing of staging environment deployments on remote cloud
+providers to validate functionality before production deployment.
 
 ## Overview
 
-This guide provides a comprehensive template for manually testing staging deployments. Staging environment testing offers unique advantages over local development and E2E testing:
+This guide provides a comprehensive template for manually testing staging
+deployments. Staging environment testing offers unique advantages over local
+development and E2E testing:
 
 ### Benefits of Staging Testing
 
@@ -507,4 +510,6 @@ After successful staging testing:
 
 ---
 
-**Note**: This guide provides a comprehensive template for staging deployment testing. For specific test session tracking, use the session documentation template in `docs/testing/manual-sessions/`.
+**Note**: This guide provides a comprehensive template for staging deployment
+testing. For specific test session tracking, use the session documentation
+template in `docs/testing/manual-sessions/`.

docs/testing/manual-sessions/2025-01-08-issue-28-phase-4-7-staging.md

@@ -9,10 +9,12 @@
 
 ## Session Overview
 
-**Objective**: Complete Issue #28 Phase 4.7 manual deployment testing for staging environment  
+**Objective**: Complete Issue #28 Phase 4.7 manual deployment testing for
+staging environment  
 **Duration**: In progress  
 **Status**: PENDING - Ready to Execute  
-**Documentation Reference**: [Issue #28](../../issues/28-phase-4-hetzner-infrastructure-implementation.md)  
+**Documentation Reference**:
+[Issue #28](../../issues/28-phase-4-hetzner-infrastructure-implementation.md)
 Phase 4.7
 
 ## Context

infrastructure/config/templates/application/prometheus.yml.tpl

@@ -31,4 +31,3 @@ scrape_configs:
     params:
       token: ['${TRACKER_ADMIN_TOKEN}']
       format: ['prometheus']
-