Implement error handling and logging for sparkline and series methods

- Added rescue blocks to handle exceptions in the Accounts and AccountableSparklines controllers, logging errors and rendering error partials.
- Enhanced error handling in the Account::Chartable and Balance::ChartSeriesBuilder models, logging specific error messages for series generation failures.
- Updated the accounts view to include a timeout for Turbo frame loading.
- Added a test to ensure graceful handling of sparkline errors in the AccountsController.

In reference to bug #2315

app/models/account/chartable.rb

@@ -29,5 +29,15 @@ module Account::Chartable
     Rails.cache.fetch(cache_key) do
       balance_series
     end
+  rescue => e
+    Rails.logger.error "Sparkline series error for account #{id}: #{e.message}"
+    # Return empty series as fallback
+    Series.new(
+      start_date: 30.days.ago.to_date,
+      end_date: Date.current,
+      interval: "1 day",
+      values: [],
+      favorable_direction: favorable_direction
+    )
   end
 end

app/models/balance/chart_series_builder.rb

@@ -9,14 +9,23 @@ class Balance::ChartSeriesBuilder
 
   def balance_series
     build_series_for(:balance)
+  rescue => e
+    Rails.logger.error "Balance series error: #{e.message} for accounts #{@account_ids}"
+    raise
   end
 
   def cash_balance_series
     build_series_for(:cash_balance)
+  rescue => e
+    Rails.logger.error "Cash balance series error: #{e.message} for accounts #{@account_ids}"
+    raise
   end
 
   def holdings_balance_series
     build_series_for(:holdings_balance)
+  rescue => e
+    Rails.logger.error "Holdings balance series error: #{e.message} for accounts #{@account_ids}"
+    raise
   end
 
   private
@@ -61,6 +70,9 @@ class Balance::ChartSeriesBuilder
           sign_multiplier: sign_multiplier
         }
       ])
+    rescue => e
+      Rails.logger.error "Query data error: #{e.message} for accounts #{account_ids}, period #{period.start_date} to #{period.end_date}"
+      raise
     end
 
     # Since the query aggregates the *net* of assets - liabilities, this means that if we're looking at