feat: botfights container app + mobile gamepad + indeedhub fixes

- Promote botfights from external proxy to container app (port 9100)
- Add /app/botfights/ nginx proxy rules (HTTP + HTTPS)
- Add ARCHY_EMBEDDED env var to botfights container config
- Add BOTFIGHTS_IMAGE to image-versions.sh
- Add mobile gamepad overlay (D-pad + A/B + START/SELECT) for botfights
  arcade mode, sends postMessage arcade-input to iframe
- Remove old /ext/botfights/ and port 8901 external proxy blocks
- IndeeHub: add post-install nginx patching for NIP-07 provider injection
- IndeeHub: fix docker image references to registry (was localhost)
- IndeeHub: update port 7777 -> 7778

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

scripts/image-versions.sh

@@ -71,6 +71,9 @@ FIPS_UI_IMAGE="$ARCHY_REGISTRY/fips-ui:latest"
 # AI / Routing
 ROUTSTR_IMAGE="$ARCHY_REGISTRY/routstr:v0.4.3"
 
+# Community / Gaming
+BOTFIGHTS_IMAGE="$ARCHY_REGISTRY/botfights:1.0.0"
+
 # IndeedHub stack (local builds use :local tag, not :latest)
 MINIO_IMAGE="$ARCHY_REGISTRY/minio:RELEASE.2024-11-07T00-52-20Z"
 INDEEDHUB_POSTGRES_IMAGE="$ARCHY_REGISTRY/postgres:16.13-alpine"