feat(dashboard): #163 first summary

internal/types/dashboard.go

@@ -0,0 +1,26 @@
+package types
+
+import "time"
+
+//	Account	| TreasureChest	| Value	| Description
+//	--------|---------------|-------|----------------
+//	Y		| Y				| +		| Invalid
+//	Y		| Y				| -		| Expense
+//	Y		| N				| +		| Deposit
+//	Y		| N				| -		| Withdrawal (for moving between accounts)
+//	N		| Y				| +		| Saving
+//	N		| Y				| -		| Withdrawal (for moving between treasure chests)
+//	N		| N				| +		| Invalid
+//	N		| N				| -		| Invalid
+
+type DashboardMonthlySummary struct {
+	Month time.Time
+	// Sum of all Transactions with TreasureChests and no Accounts
+	Savings int64
+	// Sum of all Transactions with Accounts and no TreasureChests
+	Income int64
+	// Sum of all Transactions with Accounts and TreasureChests
+	Expenses int64
+	// Income - Expenses
+	Total int64
+}