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/templates/env.j2

@@ -1,6 +1,6 @@
 ## Confluence core
 CONFLUENCE_URL="{{ CONFLUENCE_URL }}"
-
+CONFLUENCE_HOME="{{ CONFLUENCE_HOME }}"
 
 ATL_PROXY_NAME={{ CONFLUENCE_HOSTNAME }}
 ATL_PROXY_PORT={{ WEB_PORT }}
@@ -9,6 +9,8 @@ ATL_TOMCAT_SECURE={{ (WEB_PORT == 443) | lower }}
 JVM_MINIMUM_MEMORY={{ CONFLUENCE_JVM_MIN }}
 JVM_MAXIMUM_MEMORY={{ CONFLUENCE_JVM_MAX }}
 
+JVM_SUPPORT_RECOMMENDED_ARGS=-Datlassian.home={{ CONFLUENCE_HOME }}
+
 ## Database
 ATL_DB_TYPE=postgresql
 ATL_DB_DRIVER=org.postgresql.Driver
@@ -16,8 +18,8 @@ ATL_JDBC_URL=jdbc:postgresql://{{ database_host }}:{{ database_port }}/{{ databa
 ATL_JDBC_USER={{ database_username }}
 ATL_JDBC_PASSWORD={{ database_password }}
 
-## OIDC
 {% if CONFLUENCE_OIDC_ENABLED %}
+## OIDC
 CONFLUENCE_OIDC_TITLE="{{ CONFLUENCE_OIDC_LABEL | replace('\"','\\\"') }}"
 CONFLUENCE_OIDC_ISSUER="{{ CONFLUENCE_OIDC_ISSUER }}"
 CONFLUENCE_OIDC_AUTHORIZATION_ENDPOINT="{{ CONFLUENCE_OIDC_AUTH_URL }}"