chore: refine future domain model

arch.gv

@@ -1,38 +1,19 @@
-// digraph { 
-//   Transaction
-//   TreasureChest
-//   TransactionRecurring
-//   Account
-//   Dashboard
-// 
-//   Transaction -> TreasureChest [label="references"]
-//   Transaction -> TransactionRecurring [label="uses data to insert"]
-//   TreasureChest -> TransactionRecurring [label="displays"]
-//   Transaction -> Account [label="references"]
-// } 
-
 digraph { 
   Budget
   RecurringCost
-  TreasureChest
+  SavingGoal
   Tag
   Transaction
-  Dashboard
   Account
+  BankConnection
+
+  BankConnection -> Transaction [label="imports into"]
+  BankConnection -> Account [label="references"]
 
   Transaction -> Account [label="references"]
   Transaction -> Tag [label="references"]
 
   Budget -> Tag [label="references"]
   RecurringCost -> Tag [label="references"]
-  TreasureChest -> Tag [label="references"]
-
-  // Dashboard -> {
-  // 	  Account
-  // 	  Budget
-  // 	  RecurringCost
-  // 	  TreasureChest
-  // 	  Tag
-  // 	  Transaction
-  // } [label="uses"]
+  SavingGoal -> Tag [label="references"]
 }