feat(settings): add edit plan modal — name/type/speed/price inline edit (M9.4)

app/(app)/settings/page.tsx

@@ -399,6 +399,8 @@ function PlansSettings() {
   const [speedUp, setSpeedUp] = useState("");
   const [price, setPrice] = useState("");
   const [description, setDescription] = useState("");
+  const [editPlan, setEditPlan] = useState<Plan | null>(null);
+  const [editForm, setEditForm] = useState({ name: "", type: "POSTPAID", speedDown: "", speedUp: "", price: "", description: "" });
 
   const { data, isLoading, refetch } = useQuery<Plan[]>({
     queryKey: ["plans"],
@@ -444,6 +446,38 @@ function PlansSettings() {
     onError: () => toast.error("Failed to update plan"),
   });
 
+  const editPlanMutation = useMutation({
+    mutationFn: async () => {
+      if (!editPlan) return;
+      await api.patch(`/api/v1/plans/${editPlan.id}`, {
+        name: editForm.name,
+        type: editForm.type,
+        speedDownMbps: parseInt(editForm.speedDown),
+        speedUpMbps: parseInt(editForm.speedUp),
+        monthlyPrice: parseFloat(editForm.price),
+        description: editForm.description || undefined,
+      });
+    },
+    onSuccess: () => {
+      toast.success("Plan updated");
+      setEditPlan(null);
+      refetch();
+    },
+    onError: () => toast.error("Failed to update plan"),
+  });
+
+  function openEdit(p: Plan) {
+    setEditPlan(p);
+    setEditForm({
+      name: p.name,
+      type: p.type,
+      speedDown: String(p.speedDownMbps),
+      speedUp: String(p.speedUpMbps),
+      price: String(Number(p.monthlyPrice)),
+      description: p.description ?? "",
+    });
+  }
+
   function resetAdd() {
     setPlanName(""); setPlanType("POSTPAID");
     setSpeedDown(""); setSpeedUp(""); setPrice(""); setDescription("");
@@ -498,6 +532,14 @@ function PlansSettings() {
                       </Badge>
                     </Td>
                     <Td>
+                      <div className="flex items-center gap-1">
+                        <Button
+                          size="sm"
+                          variant="ghost"
+                          onClick={() => openEdit(p)}
+                        >
+                          Edit
+                        </Button>
                         <Button
                           size="sm"
                           variant="ghost"
@@ -505,6 +547,7 @@ function PlansSettings() {
                         >
                           {p.isActive ? "Archive" : "Restore"}
                         </Button>
+                      </div>
                     </Td>
                   </TableRow>
                 ))
@@ -514,6 +557,34 @@ function PlansSettings() {
         </CardContent>
       </Card>
 
+      {/* Edit Plan Modal */}
+      <Modal isOpen={!!editPlan} onClose={() => setEditPlan(null)} title="Edit Plan" className="max-w-lg">
+        <form onSubmit={(e) => { e.preventDefault(); editPlanMutation.mutate(); }} className="space-y-4">
+          <Input label="Plan Name" value={editForm.name} onChange={(e) => setEditForm(f => ({ ...f, name: e.target.value }))} />
+          <div className="flex flex-col gap-1.5">
+            <label className="text-sm font-medium text-gray-700">Type</label>
+            <select
+              className="block w-full rounded-lg border border-gray-300 bg-white px-3 py-2 text-sm focus:border-blue-500 focus:outline-none focus:ring-1 focus:ring-blue-500"
+              value={editForm.type}
+              onChange={(e) => setEditForm(f => ({ ...f, type: e.target.value }))}
+            >
+              <option value="POSTPAID">Postpaid</option>
+              <option value="PREPAID">Prepaid</option>
+            </select>
+          </div>
+          <div className="grid grid-cols-2 gap-3">
+            <Input label="Download (Mbps)" type="number" min="1" value={editForm.speedDown} onChange={(e) => setEditForm(f => ({ ...f, speedDown: e.target.value }))} />
+            <Input label="Upload (Mbps)" type="number" min="1" value={editForm.speedUp} onChange={(e) => setEditForm(f => ({ ...f, speedUp: e.target.value }))} />
+          </div>
+          <Input label="Monthly Price (₱)" type="number" min="0" step="0.01" value={editForm.price} onChange={(e) => setEditForm(f => ({ ...f, price: e.target.value }))} />
+          <Input label="Description (optional)" value={editForm.description} onChange={(e) => setEditForm(f => ({ ...f, description: e.target.value }))} />
+          <div className="flex justify-end gap-2 pt-1">
+            <Button type="button" variant="outline" size="sm" onClick={() => setEditPlan(null)}>Cancel</Button>
+            <Button type="submit" size="sm" isLoading={editPlanMutation.isPending}>Save Changes</Button>
+          </div>
+        </form>
+      </Modal>
+
       {/* Add Plan Modal */}
       <Modal isOpen={showAdd} onClose={() => { setShowAdd(false); resetAdd(); }} title="Add Plan" className="max-w-lg">
         <form onSubmit={(e) => { e.preventDefault(); addPlanMutation.mutate(); }} className="space-y-4">