Improve task update logging and handle date formatting errors

Refine error logging in task update routes and storage, and adjust date handling to correctly process null or empty date strings, preventing runtime errors.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: cc2d271b-82f0-4d6a-9302-a0b067ffb429
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/1957c339-2757-4d1f-8e92-e9f71a1ce58e/cc2d271b-82f0-4d6a-9302-a0b067ffb429/mibRh7v

server/routes.ts

@@ -1482,11 +1482,21 @@ export async function registerRoutes(app: Express): Promise<Server> {
       });
       res.json(updatedTask);
     } catch (error) {
-      console.error("❌ Error updating task:", {
-        taskId: id,
+      const taskId = parseInt(req.params.id);
+      console.error("❌ Error updating task in route:", {
+        taskId: taskId,
         error: error instanceof Error ? error.message : String(error),
         stack: error instanceof Error ? error.stack : undefined,
-        reqBody: req.body
+        reqBody: req.body,
+        cleanData: req.body ? {
+          title: req.body.title,
+          description: req.body.description,
+          priority: req.body.priority,
+          status: req.body.status,
+          assignedTo: req.body.assignedTo,
+          startDate: req.body.startDate,
+          dueDate: req.body.dueDate,
+        } : null
       });
       res.status(500).json({ 
         message: "Failed to update task",