Update documentation for healthmon rename and new features

Major documentation updates to reflect the architectural refactoring:

Documentation Updates:
- README.md: Updated all dockermon references to healthmon
- README.md: Added Docker cleanup and OS cleanup to updatectl description
- README.md: Updated notification examples and service descriptions
- README.md: Fixed GitHub Actions workflow references
- .env.example: Changed DOCKERMON_* to HEALTHMON_* variables
- .env.example: Added Docker cleanup and OS cleanup configuration sections
- .env.example: Updated examples to show new updatectl commands
- CLEANUP_DESIGN.md: Updated to reflect cleanup moved to updatectl
- CLEANUP_DESIGN.md: Documented current implementation vs original design

New Documentation:
- healthmon/README.md: Complete documentation for healthmon service
- CLI-COMMANDS.md: Comprehensive command reference for all services
- BASH_ALIASES.md: Shell alias guide for easy CLI usage

Key Changes:
- dockermon renamed to healthmon (health monitoring only)
- All cleanup functionality moved to updatectl
- Added OS cleanup commands (apt clean, apt autoremove)
- Added Docker cleanup profiles (conservative/moderate/aggressive)
- Documented local and remote execution patterns

The documentation now accurately reflects v2.0.0 architecture:
- healthmon: Read-only health monitoring
- updatemon: Read-only update checking
- updatectl: All system modifications (updates + cleanup)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Author: jsprague84

.env.example

@@ -36,20 +36,20 @@ GOTIFY_URL=https://gotify.example.com/message
 # Simple setup (same key for all services - all notifications in one Gotify app):
 #   WEATHERUST_GOTIFY_KEY=your_gotify_token
 #   UPDATEMON_GOTIFY_KEY=your_gotify_token
-#   DOCKERMON_GOTIFY_KEY=your_gotify_token
+#   HEALTHMON_GOTIFY_KEY=your_gotify_token
 #   SPEEDY_GOTIFY_KEY=your_gotify_token
 #   UPDATECTL_GOTIFY_KEY=your_gotify_token
 #
 # Organized setup (different keys per service - separate Gotify apps):
 #   WEATHERUST_GOTIFY_KEY=token_for_weather_app
 #   UPDATEMON_GOTIFY_KEY=token_for_updates_app
-#   DOCKERMON_GOTIFY_KEY=token_for_docker_app
+#   HEALTHMON_GOTIFY_KEY=token_for_healthmon_app
 #   SPEEDY_GOTIFY_KEY=token_for_speedtest_app
 #   UPDATECTL_GOTIFY_KEY=token_for_updatectl_app
 #
 WEATHERUST_GOTIFY_KEY=your_weatherust_gotify_token_here
 UPDATEMON_GOTIFY_KEY=your_updatemon_gotify_token_here
-DOCKERMON_GOTIFY_KEY=your_dockermon_gotify_token_here
+HEALTHMON_GOTIFY_KEY=your_healthmon_gotify_token_here
 SPEEDY_GOTIFY_KEY=your_speedynotify_gotify_token_here
 UPDATECTL_GOTIFY_KEY=your_updatectl_gotify_token_here
 
@@ -72,21 +72,21 @@ NTFY_URL=https://ntfy.js-node.com
 # Simple setup (same topic for all - all notifications in one feed):
 #   WEATHERUST_NTFY_TOPIC=weatherust-alerts
 #   UPDATEMON_NTFY_TOPIC=weatherust-alerts
-#   DOCKERMON_NTFY_TOPIC=weatherust-alerts
+#   HEALTHMON_NTFY_TOPIC=weatherust-alerts
 #   SPEEDY_NTFY_TOPIC=weatherust-alerts
 #   UPDATECTL_NTFY_TOPIC=weatherust-alerts
 #
 # Organized setup (different topics per service):
 #   WEATHERUST_NTFY_TOPIC=weather
 #   UPDATEMON_NTFY_TOPIC=updates
-#   DOCKERMON_NTFY_TOPIC=docker
+#   HEALTHMON_NTFY_TOPIC=docker-health
 #   SPEEDY_NTFY_TOPIC=speedtest
 #   UPDATECTL_NTFY_TOPIC=update-actions
 #
 # Example (uncomment to enable):
 # WEATHERUST_NTFY_TOPIC=weatherust
 # UPDATEMON_NTFY_TOPIC=weatherust
-# DOCKERMON_NTFY_TOPIC=weatherust
+# HEALTHMON_NTFY_TOPIC=weatherust
 # SPEEDY_NTFY_TOPIC=weatherust
 # UPDATECTL_NTFY_TOPIC=weatherust
 
@@ -127,7 +127,7 @@ SPEEDTEST_MIN_UP=20
 
 
 # ==============================================================================
-# DOCKERMON - Docker container health monitoring
+# HEALTHMON - Docker container health monitoring
 # ==============================================================================
 
 # CPU and memory warning thresholds (percent)
@@ -138,16 +138,11 @@ MEM_WARN_PCT=90
 HEALTH_NOTIFY_ALWAYS=false
 
 # Ignore specific containers (comma-separated: name, ID, or service name)
-# Example: DOCKERMON_IGNORE=weatherust-weatherust-1,weatherust-speedynotify-1
-# DOCKERMON_IGNORE=
+# Example: HEALTHMON_IGNORE=ofelia,traefik,portainer
+# HEALTHMON_IGNORE=
 
-# Docker cleanup configuration
-# Age threshold in days for unused images (default: 90)
-# DOCKERMON_CLEANUP_IMAGE_AGE_DAYS=90
-
-# Container log size threshold for reporting (default: 100M)
-# Format: <number><unit> where unit is K (KB), M (MB), or G (GB)
-# DOCKERMON_CLEANUP_LOG_SIZE_CONTAINER=100M
+# Note: Docker cleanup functionality has been moved to updatectl
+# See UPDATECTL section below for Docker cleanup configuration
 
 
 # ==============================================================================
@@ -180,20 +175,28 @@ HEALTH_NOTIFY_ALWAYS=false
 
 
 # ==============================================================================
-# UPDATECTL - Apply OS and Docker updates (companion to updatemon)
+# UPDATECTL - Apply OS and Docker updates + Docker/OS cleanup
 # ==============================================================================
 
 # updatectl uses the same UPDATE_SERVERS and UPDATE_SSH_KEY as updatemon above
 # No additional configuration required for server connectivity
 
-# IMPORTANT: updatectl can MODIFY your systems by applying updates
+# IMPORTANT: updatectl can MODIFY your systems by applying updates and cleanup
 # Always test with --dry-run first to preview changes
 #
 # Manual usage examples:
+#   # Updates
 #   docker compose exec updatectl_runner /app/updatectl all --dry-run --local
 #   docker compose exec updatectl_runner /app/updatectl os --yes --local
 #   docker compose exec updatectl_runner /app/updatectl docker --all --yes --local
 #
+#   # Docker cleanup
+#   docker compose exec updatectl_runner /app/updatectl clean-docker --local
+#   docker compose exec updatectl_runner /app/updatectl clean-docker --local --execute --profile conservative
+#
+#   # OS cleanup
+#   docker compose exec updatectl_runner /app/updatectl clean-os --local --execute --all
+#
 # Automated updates via Ofelia (see docker-compose.yml):
 #   Ofelia jobs are COMMENTED OUT by default for safety
 #   Uncomment schedules in docker-compose.yml to enable automated updates
@@ -290,6 +293,34 @@ UPDATECTL_WEBHOOK_URL=https://webhook.js-node.app
 # - Consider IP allowlisting if exposing to the internet
 
 
+# ==============================================================================
+# DOCKER CLEANUP CONFIGURATION (used by updatectl clean-docker)
+# ==============================================================================
+
+# Docker cleanup profiles:
+#   conservative - Dangling images + unused networks (safest, default)
+#   moderate     - Conservative + build cache
+#   aggressive   - Moderate + old stopped containers (30+ days)
+
+# No additional environment variables needed - profiles are selected via CLI
+# Example usage:
+#   updatectl clean-docker --local --execute --profile conservative
+
+
+# ==============================================================================
+# OS CLEANUP CONFIGURATION (used by updatectl clean-os)
+# ==============================================================================
+
+# OS cleanup operations:
+#   --cache      - Clean package manager cache (apt clean, dnf clean)
+#   --autoremove - Remove unused packages (apt autoremove, dnf autoremove)
+#   --all        - Both cache and autoremove
+
+# No additional environment variables needed - operations selected via CLI
+# Example usage:
+#   updatectl clean-os --local --execute --all
+
+
 # ==============================================================================
 # DEVELOPMENT / TESTING
 # ==============================================================================
@@ -303,12 +334,12 @@ UPDATECTL_WEBHOOK_URL=https://webhook.js-node.app
 #   WEATHERUST_TAG=pr-42
 #   WEATHERUST_TAG=sha-abc1234
 #   SPEEDYNOTIFY_TAG=feature-speedtest-v2
-#   DOCKERMON_TAG=sha-def5678
+#   HEALTHMON_TAG=sha-def5678
 #   UPDATEMON_TAG=feature-update-checker
 #   UPDATECTL_TAG=feature-auto-updater
 #
 # WEATHERUST_TAG=
 # SPEEDYNOTIFY_TAG=
-# DOCKERMON_TAG=
+# HEALTHMON_TAG=
 # UPDATEMON_TAG=
 # UPDATECTL_TAG=