Handle holding quantity generation for reverse syncs correctly when not all holdings are generated for current day (#2417)

* Handle reverse calculator starting portfolio generation correctly

* Fix current_holdings to handle different dates and hide zero quantities

- Use DISTINCT ON to get most recent holding per security instead of assuming same date
- Filter out zero quantity holdings from UI display
- Maintain cash display regardless of zero balance
- Use single efficient query with proper Rails syntax

* Continue to process holdings even if one is not resolvable

* Lint fixes

app/models/holding/materializer.rb

@@ -52,7 +52,8 @@ class Holding::Materializer
 
     def calculator
       if strategy == :reverse
-        Holding::ReverseCalculator.new(account)
+        portfolio_snapshot = Holding::PortfolioSnapshot.new(account)
+        Holding::ReverseCalculator.new(account, portfolio_snapshot: portfolio_snapshot)
       else
         Holding::ForwardCalculator.new(account)
       end