fix: soft delete tasks instead of hard delete

apps/api-v2/src/routers/tasks.ts

@@ -18,6 +18,8 @@ export const buildTasksRouter = () => {
       const authCtx = getAuthContext(req);
       // get all tasks for the user
       // sort by earliest one first; ones with no start time last
+      // also put all the done ones at the end
+      // do not include deleted tasks (i.e those with deletedAt not null)
       const tasks = await prisma.task.findMany({
         orderBy: [
           {
@@ -32,6 +34,7 @@ export const buildTasksRouter = () => {
         ],
         where: {
           userId: authCtx.sub,
+          deletedAt: null,
         },
       });
       return res.status(200).json(
@@ -141,11 +144,14 @@ export const buildTasksRouter = () => {
     async (req, res) => {
       try {
         const authCtx = getAuthContext(req);
-        const task = await prisma.task.delete({
+        const task = await prisma.task.update({
           where: {
             id: req.params.id,
             userId: authCtx.sub,
           },
+          data: {
+            deletedAt: new Date(),
+          },
         });
         return res.status(200).json(
           new SupernovaResponse({

apps/desktop-v2/app/page.tsx

@@ -107,7 +107,7 @@ function Home() {
           ref={taskListRef}
         >
           <hr className="w-64" />
-          {memoizedTasksView.length === 0 && (
+          {undoneTasks.length === 0 && (
             <div className="w-64">
               <p className="text-slate-400 text-[16px] text-center">
                 No tasks yet. Press <Kbd>c</Kbd> to create a task, or go to the