fix(vendors): preserve status during roster edits

src/app/(protected)/vendors/_components/use-vendor-roster-form.ts

@@ -97,6 +97,7 @@ export interface VendorRosterForm {
   selectedCompanyId: string | number | null;
   selectCompany: (company: VendorFacetCompany | null) => Promise<void>;
   clearSelectedCompany: (nextName?: string) => void;
+  setTechnicianActive: (index: number, isActive: boolean) => void;
   resetForm: () => void;
 }
 
@@ -133,7 +134,7 @@ export function useVendorRosterForm({
     values: mode === "update" && routeRoster ? toFormValues(routeRoster) : undefined,
     mode: "onChange",
   });
-  const { control, handleSubmit, reset, formState } = form;
+  const { control, handleSubmit, reset, setValue, formState } = form;
   // react-hook-form exposes formState through a Proxy that only tracks properties read during
   // render. Reading dirtyFields inside the submit callback would not subscribe and would come
   // back empty, so it is resolved here on every render.
@@ -163,6 +164,16 @@ export function useVendorRosterForm({
     clearConflict();
   }, [clearConflict, createDefaults, reset, resetSelection]);
 
+  const setTechnicianActive = useCallback(
+    (index: number, isActive: boolean) => {
+      setValue(`technicians.${index}.isActive`, isActive, {
+        shouldDirty: true,
+        shouldValidate: true,
+      });
+    },
+    [setValue],
+  );
+
   const submit = (formValues: VendorCompanyRosterFormValues) => {
     setConflict(null);
     const values = withoutBlankNewTechnicians(formValues);
@@ -228,6 +239,7 @@ export function useVendorRosterForm({
     selectedCompanyId: selection.selectedCompanyId,
     selectCompany: selection.selectCompany,
     clearSelectedCompany: selection.clearSelectedCompany,
+    setTechnicianActive,
     resetForm,
   };
 }

src/app/(protected)/vendors/_components/vendor-detail-drawer.tsx

@@ -1,5 +1,5 @@
 import { useEffect, useState, type ReactNode } from "react";
-import { Controller, useWatch } from "react-hook-form";
+import { useWatch } from "react-hook-form";
 import CloseIcon from "@mui/icons-material/Close";
 import EditOutlinedIcon from "@mui/icons-material/EditOutlined";
 import LaunchIcon from "@mui/icons-material/Launch";
@@ -240,6 +240,32 @@ function DrawerActions({ onEdit }: { onEdit: () => void }) {
   );
 }
 
+function TechnicianStatusControl({
+  isActive,
+  persistedIsActive,
+  onRequestDeactivation,
+  onChange,
+}: {
+  isActive: boolean;
+  persistedIsActive: boolean;
+  onRequestDeactivation: () => void;
+  onChange: (checked: boolean) => void;
+}) {
+  return (
+    <Stack direction="row" spacing={1} sx={{ alignItems: "center" }}>
+      <Text variant="description">{isActive ? "Active" : "Inactive"}</Text>
+      <Switch
+        checked={isActive}
+        slotProps={{ input: { "aria-label": "Active status" } }}
+        onChange={(_event, checked) => {
+          if (persistedIsActive && !checked) onRequestDeactivation();
+          else onChange(checked);
+        }}
+      />
+    </Stack>
+  );
+}
+
 function DrawerEditor({
   vendor,
   onClose,
@@ -312,23 +338,11 @@ function DrawerEditor({
                   Total Jobs
                 </Text>
               </Box>
-              <Controller
-                control={form.control}
-                name={`technicians.${selectedIndex}.isActive`}
-                shouldUnregister
-                render={({ field }) => (
-                  <Stack direction="row" spacing={1} sx={{ alignItems: "center" }}>
-                    <Text variant="description">{field.value ? "Active" : "Inactive"}</Text>
-                    <Switch
-                      checked={Boolean(field.value)}
-                      slotProps={{ input: { "aria-label": "Active status" } }}
-                      onChange={(_event, checked) => {
-                        if (persistedIsActive && !checked) onRequestDeactivation(vendor);
-                        else field.onChange(checked);
-                      }}
-                    />
-                  </Stack>
-                )}
+              <TechnicianStatusControl
+                isActive={Boolean(technicians[selectedIndex]?.isActive)}
+                persistedIsActive={persistedIsActive}
+                onRequestDeactivation={() => onRequestDeactivation(vendor)}
+                onChange={(checked) => form.setTechnicianActive(selectedIndex, checked)}
               />
             </Stack>
           </>