feat(ai): introduce dedicated AI roles and wiring; clean up legacy AI stack

• Add svc-ai category under roles and load it in constructor stage

• Create new 'svc-ai-ollama' role (vars, tasks, compose, meta, README) and dedicated network

• Refactor former AI stack into separate app roles: web-app-flowise and web-app-openwebui

• Add web-app-minio role; adjust config (no central DB), meta (fa-database, run_after), compose networks include, volume key

• Provide user-focused READMEs for Flowise, OpenWebUI, MinIO, Ollama

• Networks: add subnets for web-app-openwebui, web-app-flowise, web-app-minio; rename web-app-ai → svc-ai-ollama

• Ports: rename ai_* keys to web-app-openwebui / web-app-flowise; keep minio_api/minio_console

• Add group_vars/all/17_ai.yml (OLLAMA_BASE_LOCAL_URL, OLLAMA_LOCAL_ENABLED)

• Replace hardcoded include paths with path_join in multiple roles (svc-db-postgres, sys-service, sys-stk-front-proxy, sys-stk-full-stateful, sys-svc-webserver, web-svc-cdn, web-app-keycloak)

• Remove obsolete web-app-ai templates/vars/env; split Flowise into its own role

• Minor config cleanups (CSP flags to {}, central_database=false)

https://chatgpt.com/share/68d15cb8-cf18-800f-b853-78962f751f81

roles/web-app-openwebui/meta/main.yml

@@ -0,0 +1,28 @@
+---
+galaxy_info:
+  author: "Kevin Veen-Birkenbach"
+  description: "Installs Open WebUI — a clean, fast chat interface for local/private AI models (e.g., via Ollama)."
+  license: "Infinito.Nexus NonCommercial License"
+  license_url: "https://s.infinito.nexus/license"
+  company: | 
+    Kevin Veen-Birkenbach
+    Consulting & Coaching Solutions
+    https://www.veen.world
+  galaxy_tags:
+    - ai
+    - llm
+    - chat
+    - privacy
+    - self-hosted
+    - offline
+    - openwebui
+    - ollama
+  repository: "https://s.infinito.nexus/code"
+  issue_tracker_url: "https://s.infinito.nexus/issues"
+  documentation: "https://s.infinito.nexus/code/"
+  logo:
+    class: "fa-solid fa-comments"
+  run_after:
+    - web-app-keycloak
+    - web-app-matomo
+dependencies: []