Use Sinatra config in whenever

Gemfile.lock

@@ -23,6 +23,7 @@ GEM
     bcrypt (3.1.20)
     benchmark (0.4.0)
     bigdecimal (3.1.9)
+    chronic (0.10.2)
     concurrent-ruby (1.3.5)
     connection_pool (2.5.0)
     date (3.4.1)
@@ -92,11 +93,16 @@ GEM
     singleton (0.3.0)
     sqlite3 (2.6.0)
       mini_portile2 (~> 2.8.0)
+    sqlite3 (2.6.0-arm64-darwin)
+    sqlite3 (2.6.0-x86_64-darwin)
+    sqlite3 (2.6.0-x86_64-linux-gnu)
     text (1.3.1)
     tilt (2.6.0)
     timeout (0.4.3)
     tzinfo (2.0.6)
       concurrent-ruby (~> 1.0)
+    whenever (1.1.2)
+      chronic (>= 0.6.3)
 
 PLATFORMS
   arm64-darwin
@@ -117,6 +123,7 @@ DEPENDENCIES
   sinatra
   sinatra-activerecord
   sqlite3
+  whenever
 
 BUNDLED WITH
    2.3.15