Track associated toggl entry id for uniqueness, show stats for time spent in different parts of the lecture flow.

db/migrate/20231006203421_add_associated_toggl_entry_id.rb

@@ -0,0 +1,8 @@
+class AddAssociatedTogglEntryId < ActiveRecord::Migration[7.1]
+  def change
+    add_column :tracked_time_entries, :associated_toggl_entry_id, :integer, null: false
+
+    # Make column unique
+    add_index :tracked_time_entries, :associated_toggl_entry_id, unique: true
+  end
+end

db/migrate/20231006204103_make_associated_toggl_entry_id_larger.rb

@@ -0,0 +1,5 @@
+class MakeAssociatedTogglEntryIdLarger < ActiveRecord::Migration[7.1]
+  def change
+    change_column :tracked_time_entries, :associated_toggl_entry_id, :bigint
+  end
+end