Upgrade TeslaMate v2.2.0 → v3.0.0 (#279)

## Summary
- Upgrade TeslaMate from v2.2.0 to v3.0.0 (first service review)
- Elixir 1.18 → 1.19.5, runtime base bookworm → trixie
- Adds zstd/brotli build deps for new static asset compression
- DB migration (BTREE → BRIN indexes) runs automatically via entrypoint

## Deployment and Testing
- [ ] Trigger container build: `mise run container-build-and-release teslamate`
- [ ] Update kustomization.yaml with new image tag
- [ ] Deploy from branch: `argocd app set teslamate --revision upgrade/teslamate-v3.0.0 && argocd app sync teslamate`
- [ ] Verify TeslaMate UI loads and data is intact
- [ ] Check logs for migration errors
- [ ] After merge: reset ArgoCD to main, update kustomization tag to `[main]` image

Reviewed-on: #279

service-versions.yaml

@@ -156,8 +156,8 @@ services:
 
   - name: teslamate
     type: argocd
-    last-reviewed: null
-    current-version: "v2.2.0"
+    last-reviewed: 2026-03-03
+    current-version: "v3.0.0"
     upstream-source: https://github.com/teslamate-org/teslamate/releases
 
   - name: transmission