Initial commit: arr-stack homelab + local AI

Docker Compose media stack (gluetun, *arr, Jellyfin), Ternary-Bonsai AI
(Open WebUI, Forgejo, optional OpenHands), and Ansible bootstrap for the
SER5 Ubuntu host.

.gitignore

@@ -0,0 +1,18 @@
+
+ansible/*.retry
+ansible/.secrets/
+config/
+config/wg0.conf
+data/
+.env
+.env.*
+!.env.example
+*.gguf
+models/bonsai/*.gguf
+models/bonsai/*.partial
+.openhands-state/
+# secrets / local runtime
+**/wg0.conf
+wireguard/wg0.conf
+workspace/*
+!workspace/README.md