fix: bump archive resources to match production snapshotter (r7i.16xlarge)

Production snapshotter runs r7i.16xlarge (64 vCPU, 512 GiB RAM).
Update archive resource requests to 48 CPU / 448 GiB, leaving headroom
for sidecar, OS, kubelet, and page cache on the instance.

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

Author: bdchatham

config/manager/manager.yaml

@@ -54,9 +54,9 @@ spec:
           - name: SEI_STORAGE_SIZE_ARCHIVE
             value: 25000Gi
           - name: SEI_RESOURCE_CPU_ARCHIVE
-            value: "16"
+            value: "48"
           - name: SEI_RESOURCE_MEM_ARCHIVE
-            value: 256Gi
+            value: 448Gi
           - name: SEI_RESOURCE_CPU_DEFAULT
             value: "4"
           - name: SEI_RESOURCE_MEM_DEFAULT

internal/controller/node/resources_test.go

@@ -701,6 +701,6 @@ func TestDefaultResourcesForMode_Archive(t *testing.T) {
 	cfg := platformtest.Config()
 
 	res := defaultResourcesForMode(string(seiconfig.ModeArchive), cfg)
-	g.Expect(res.Requests[corev1.ResourceCPU]).To(Equal(resource.MustParse("16")))
-	g.Expect(res.Requests[corev1.ResourceMemory]).To(Equal(resource.MustParse("256Gi")))
+	g.Expect(res.Requests[corev1.ResourceCPU]).To(Equal(resource.MustParse("48")))
+	g.Expect(res.Requests[corev1.ResourceMemory]).To(Equal(resource.MustParse("448Gi")))
 }

internal/platform/platformtest/config.go

@@ -16,8 +16,8 @@ func Config() platform.Config {
 		StorageClassArchive: "io2-archive",
 		StorageSizeDefault:  "2000Gi",
 		StorageSizeArchive:  "25000Gi",
-		ResourceCPUArchive:  "16",
-		ResourceMemArchive:  "256Gi",
+		ResourceCPUArchive:  "48",
+		ResourceMemArchive:  "448Gi",
 		ResourceCPUDefault:  "4",
 		ResourceMemDefault:  "32Gi",
 		SnapshotBucket:      "test-sei-snapshots",