feat(kube): add YAML edit action to NamespaceList

Namespaces had a read-only table with no actions. Adds an edit button per
row that fetches the namespace YAML via getResourceYamlCmd (cluster-scoped,
empty namespace param) and opens EditResourceModal.

src/components/Kubernetes/NamespaceList.tsx

@@ -1,6 +1,9 @@
-import React from "react";
+import React, { useState } from "react";
-import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow, Badge } from "@/components/ui";
+import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow, Badge, Button } from "@/components/ui";
+import { Pencil } from "lucide-react";
 import type { NamespaceResourceInfo } from "@/lib/tauriCommands";
+import { getResourceYamlCmd } from "@/lib/tauriCommands";
+import { EditResourceModal } from "./EditResourceModal";
 
 interface NamespaceListProps {
   items: NamespaceResourceInfo[];
@@ -14,21 +17,46 @@ function statusVariant(status: string): "success" | "destructive" | "secondary"
   return "secondary";
 }
 
-export function NamespaceList({ items }: NamespaceListProps) {
+export function NamespaceList({ items, clusterId }: NamespaceListProps) {
+  const [editState, setEditState] = useState<{
+    open: boolean;
+    name: string;
+    yaml: string;
+  } | null>(null);
+  const [editError, setEditError] = useState<string | null>(null);
+
+  const openEdit = async (ns: NamespaceResourceInfo) => {
+    setEditError(null);
+    try {
+      // Namespaces are cluster-scoped — pass empty string for namespace param
+      const yaml = await getResourceYamlCmd(clusterId, "namespaces", "", ns.name);
+      setEditState({ open: true, name: ns.name, yaml });
+    } catch (err) {
+      setEditError(err instanceof Error ? err.message : String(err));
+    }
+  };
+
   return (
     <div className="overflow-x-auto">
+      {editError && (
+        <div className="mb-2 rounded-md border border-destructive/50 bg-destructive/10 px-3 py-2 text-sm text-destructive">
+          {editError}
+        </div>
+      )}
+
       <Table>
         <TableHeader>
           <TableRow>
             <TableHead>Name</TableHead>
             <TableHead>Status</TableHead>
             <TableHead>Age</TableHead>
+            <TableHead className="w-16 text-right">Actions</TableHead>
           </TableRow>
         </TableHeader>
         <TableBody>
           {items.length === 0 ? (
             <TableRow>
-              <TableCell colSpan={3} className="text-center text-muted-foreground">
+              <TableCell colSpan={4} className="text-center text-muted-foreground">
                 No namespaces found
               </TableCell>
             </TableRow>
@@ -40,11 +68,35 @@ export function NamespaceList({ items }: NamespaceListProps) {
                   <Badge variant={statusVariant(ns.status)}>{ns.status}</Badge>
                 </TableCell>
                 <TableCell className="text-sm text-muted-foreground">{ns.age}</TableCell>
+                <TableCell className="text-right">
+                  <Button
+                    size="sm"
+                    variant="ghost"
+                    className="h-7 w-7 p-0"
+                    title="Edit YAML"
+                    onClick={() => void openEdit(ns)}
+                  >
+                    <Pencil className="h-3.5 w-3.5" />
+                    <span className="sr-only">Edit</span>
+                  </Button>
+                </TableCell>
               </TableRow>
             ))
           )}
         </TableBody>
       </Table>
+
+      {editState && (
+        <EditResourceModal
+          isOpen={editState.open}
+          clusterId={clusterId}
+          namespace=""
+          resourceType="namespaces"
+          resourceName={editState.name}
+          initialYaml={editState.yaml}
+          onClose={() => setEditState(null)}
+        />
+      )}
     </div>
   );
 }