Fix Confluence & BookWyrm setup:

- Add docker compose build trigger in docker-compose tasks
- Cleanup svc-prx-openresty vars
- Enable unsafe-inline CSP flags for BookWyrm, Confluence, Jira to allow Atlassian inline scripts
- Generalize CONFLUENCE_HOME usage in vars, env and docker-compose
- Ensure confluence-init.properties written with correct home
- Add JVM_SUPPORT_RECOMMENDED_ARGS to pass atlassian.home
- Update README to reference {{ CONFLUENCE_HOME }}

See: https://chatgpt.com/share/68b7582a-aeb8-800f-a14f-e98c5b4e6c70

roles/web-app-confluence/README.md

@@ -17,7 +17,7 @@ The role builds a minimal custom image on top of the official Confluence image,
 * **JVM Auto-Tuning:** `JVM_MINIMUM_MEMORY` / `JVM_MAXIMUM_MEMORY` computed from host memory with upper bounds.
 * **Health Checks:** Curl-based container healthcheck for early failure detection.
 * **CSP & Canonical Domains:** Hooks into platform CSP/SSL/domain management to keep policies strict and URLs stable.
-* **Backup Friendly:** Data isolated under `/var/atlassian/application-data/confluence`.
+* **Backup Friendly:** Data isolated under `{{ CONFLUENCE_HOME }}`.
 
 ## Further Resources