chore(devspace): raise memoryLimit 6Gi → 10Gi for rust-analyzer headroom

rust-analyzer indexing the gitoxide workspace alongside cargo, VS Code
server, and claude pushes past 6Gi and trips the OOM killer.

Author: Mbd06b

devfile.yaml

@@ -24,7 +24,7 @@ components:
   - name: tools
     container:
       image: harbor.ethosengine.com/devspaces/rust-nix-dev:latest
-      memoryLimit: 6Gi
+      memoryLimit: 10Gi
       memoryRequest: 2Gi
       cpuLimit: '2'
       cpuRequest: '500m'