fix: properly filter by date range, improve filter handlers

src/Model/TimelineFilterDto.php

@@ -6,8 +6,27 @@ use Carbon\CarbonPeriod;
 
 class TimelineFilterDto extends AssignmentFilterDto
 {
+    protected bool $includePast = true;
     protected ?CarbonPeriod $_period = null;
 
+    public function getDateFrom(): ?\DateTimeImmutable
+    {
+        if (null === $this->dateFrom) {
+            return $this->_period->first()->toDateTimeImmutable();
+        }
+
+        return $this->dateFrom;
+    }
+
+    public function getDateTo(): ?\DateTimeImmutable
+    {
+        if (null === $this->dateTo) {
+            return $this->_period->last()->toDateTimeImmutable();
+        }
+
+        return $this->dateTo;
+    }
+
     public function getPeriod(): ?CarbonPeriod
     {
         return $this->_period;