Refactor and remove sqlite and replace with MySQL

internal/helpers/parse.go

@@ -0,0 +1,14 @@
+package helpers
+
+import "strconv"
+
+func ParseIntSlice(input []string) []int {
+	var out []int
+	for _, s := range input {
+		n, err := strconv.Atoi(s)
+		if err == nil {
+			out = append(out, n)
+		}
+	}
+	return out
+}