fix(local): kustomize render passes cleanly

- Remove base/mesh from local overlay (Linkerd installed via CLI in local-up.sh)
- Fix LiveKit namespace: chart doesn't set .Release.Namespace, add explicit patches
- Fix release names: livekit-server and cloudnative-pg match chart names (avoid double-prefix)
- Disable hydra-maester (not needed for local dev)
- Add memory limits for cloudnative-pg operator and livekit-server deployments
- Remove non-functional values-ory.yaml patch (DOMAIN_SUFFIX handled by sed in local-up.sh)
- Gitignore **/charts/ (kustomize helm cache, generated artifact)

.gitignore

@@ -2,3 +2,5 @@ secrets/local/
 *.pem
 *-key.pem
 .DS_Store
+# kustomize helm chart download cache
+**/charts/