refactor: reorganize docker role into logical service groups

Break down the monolithic main.yml (176 lines) into organized service categories:

- infrastructure/ (caddy, authentik, dockge) - Core platform components
- development/ (gitea, codeserver, conduit) - Development tools
- media/ (audiobookshelf, calibre, ghost, pinchflat, etc.) - Content services
- productivity/ (paperless, baikal, syncthing, mmdl, etc.) - Personal organization
- monitoring/ (glance, changedetection, appriseapi) - System monitoring
- communication/ (gotosocial, postiz) - Social/messaging services

Benefits:
- Improved maintainability with logical grouping
- Better dependency management between service categories
- Enhanced tag-based deployment (can deploy by category)
- Cleaner organization for 25+ services

All individual service tags remain functional for backwards compatibility.

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

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

roles/docker/tasks/media/main.yml

@@ -0,0 +1,35 @@
+---
+# Media services - Content creation, management, and consumption
+
+- name: Install audiobookshelf
+  import_tasks: audiobookshelf.yml
+  tags: audiobookshelf
+
+- name: Install calibre
+  import_tasks: calibre.yml
+  tags: calibre
+
+- name: Install ghost-1
+  import_tasks: ghost-1.yml
+  tags: ghost-1
+
+- name: Install pinchflat
+  import_tasks: pinchflat.yml
+  tags: pinchflat
+
+- name: Install pinry
+  import_tasks: pinry.yml
+  tags: pinry
+
+- name: Install hoarder
+  import_tasks: hoarder.yml
+  tags: hoarder
+
+- name: Install manyfold
+  import_tasks: manyfold.yml
+  tags: manyfold
+
+# Commented services can be uncommented when ready
+#- name: Install beaver
+#  import_tasks: beaver.yml
+#  tags: beaver