Fix controlled input warning on all form pages

- Merge API response into form state instead of replacing it
- Null values from the API now fall back to the form's default values
- Prevents React controlled-to-uncontrolled input warning

src/pages/PmSchedule/form/PmScheduleFormPage.js

@@ -28,7 +28,13 @@ export default function PmScheduleFormPage() {
         try {
           const pm = await getPMScheduleById(id);
           if (pm) {
-            setFormData(pm);
+            setFormData(prev => {
+              const merged = { ...prev };
+              for (const key of Object.keys(merged)) {
+                if (pm[key] != null) merged[key] = pm[key];
+              }
+              return merged;
+            });
           }
         } catch (err) {
           console.error("Failed to load PM schedule", err);

src/pages/calendar/form/EventFormPage.js

@@ -63,7 +63,13 @@ export default function EventFormPage() {
         try {
           const event = await getEventById(id);
           if (event) {
-            setFormData(event);
+            setFormData(prev => {
+              const merged = { ...prev };
+              for (const key of Object.keys(merged)) {
+                if (event[key] != null) merged[key] = event[key];
+              }
+              return merged;
+            });
             setTitleCounter(100 - (event.title?.length || 0));
             setLocationCounter(150 - (event.location?.length || 0));
           }

src/pages/employees/form/EmployeeFormPage.js

@@ -50,7 +50,13 @@ export default function EmployeeFormPage() {
         try {
           const employee = await getEmployeeById(id);
           if (employee) {
-            setFormData(employee);
+            setFormData(prev => {
+              const merged = { ...prev };
+              for (const key of Object.keys(merged)) {
+                if (employee[key] != null) merged[key] = employee[key];
+              }
+              return merged;
+            });
           }
         } catch (err) {
           console.error("Failed to load employee", err);

src/pages/followup/form/FollowUpFormPage.js

@@ -27,7 +27,13 @@ export default function FollowUpFormPage() {
         try {
           const followUp = await getFollowUpById(id);
           if (followUp) {
-            setFormData(followUp);
+            setFormData(prev => {
+              const merged = { ...prev };
+              for (const key of Object.keys(merged)) {
+                if (followUp[key] != null) merged[key] = followUp[key];
+              }
+              return merged;
+            });
           }
         } catch (err) {
           console.error("Failed to load follow up", err);

src/pages/locations/form/LocationFormPage.js

@@ -30,7 +30,13 @@ export default function LocationFormPage() {
         try {
           const location = await getLocationById(id);
           if (location) {
-            setFormData(location);
+            setFormData(prev => {
+              const merged = { ...prev };
+              for (const key of Object.keys(merged)) {
+                if (location[key] != null) merged[key] = location[key];
+              }
+              return merged;
+            });
           }
         } catch (err) {
           console.error("Failed to load location", err);

src/pages/workorders/form/WorkOrderFormPage.js

@@ -30,7 +30,13 @@ export default function WorkOrderFormPage() {
         try {
           const wo = await getWorkOrderById(id);
           if (wo) {
-            setFormData(wo);
+            setFormData(prev => {
+              const merged = { ...prev };
+              for (const key of Object.keys(merged)) {
+                if (wo[key] != null) merged[key] = wo[key];
+              }
+              return merged;
+            });
           }
         } catch (err) {
           console.error("Failed to load work order", err);