feat: publish standalone worker

Separate worker packaging and service lifecycle from the control plane.

app/models/bits.go

@@ -0,0 +1,31 @@
+package models
+
+import "time"
+
+// BeginningOfDay provides functionality.
+func BeginningOfDay(t time.Time) time.Time {
+	year, month, day := t.Date()
+	return time.Date(year, month, day, 0, 0, 0, 0, t.Location())
+}
+
+// SetBit provides functionality.
+// https://stackoverflow.com/questions/23192262/how-would-you-set-and-clear-a-single-bit-in-go
+// Sets the bit at pos in the integer n.
+func SetBit(n int, pos uint) int {
+	n |= (1 << pos)
+	return n
+}
+
+// ClearBit provides functionality.
+// Clears the bit at pos in n.
+func ClearBit(n int, pos uint) int {
+	mask := ^(1 << pos)
+	n &= mask
+	return n
+}
+
+// HasBit provides functionality.
+func HasBit(n int, pos uint) bool {
+	val := n & (1 << pos)
+	return (val > 0)
+}