chore: add .editorconfig formatting baseline (template-suite parity)

.editorconfig

@@ -0,0 +1,13 @@
+# EditorConfig — https://editorconfig.org
+# Shared formatting baseline for the platform scaffold. Mirrors the common base of the
+# go-template / dotnet-template siblings; platform-template is YAML/Markdown/JSON only,
+# so a 2-space, space-indent default fits every file.
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_style = space
+indent_size = 2

k8s/bases/infrastructure/cluster-policies/samples/best-practices/add-ns-quota/add-ns-quota.yaml

@@ -55,4 +55,4 @@ spec:
             defaultRequest:
               cpu: 200m
               memory: 256Mi
-            type: Container
+            type: Container

k8s/bases/infrastructure/cluster-policies/samples/other/spread-pods-across-topology/spread-pods-across-topology.yaml

@@ -37,4 +37,4 @@ spec:
                   whenUnsatisfiable: DoNotSchedule
                   labelSelector:
                     matchLabels:
-                      distributed: required
+                      distributed: required