feat(binance): add full account sync and transaction processing (#1822)

* feat(binance): add full account sync and transaction processing

- Fixed a bug that hindered Account setup
- Wire up Binance accounts, sync statistics, and unlinked account tracking in the accounts dashboard.
- Support setting a sync_start_date during Binance account setup.
- Set Binance accounts' opening balance to zero to ensure the ledger builds cleanly from the actual trade history.
- Expand the Binance importer and processor to handle Spot, Margin, Earn, P2P, and Futures trades and assets.
- Implement TransactionBuilder to parse raw Binance trades, accurately calculating fees, base/quote asset amounts, and market values for proper ledger integration.
- Update Binance API timeout (`recvWindow`) to 60,000ms to prevent connection drops.

These changes provide comprehensive support for tracking Binance portfolios, ensuring accurate historical ledgers and proper visibility of sync statuses in the frontend dashboard.

* refactor(binance): enforce strong params, double-entry safety, and native fiat currency support

- Implement strong parameters in BinanceItemsController#complete_account_setup to satisfy Rails security guidelines.
- Add robust date parsing with a grace fallback to prevent controller crashes on malformed sync start dates.
- Wrap P2P transaction creations inside a database transaction block to guarantee ledger integrity and prevent orphan records.
- Optimize P2P deduplication queries by batching checks for both transaction and funding external IDs.
- Shift P2P entry persistence from forced USD tracking to native fiat values extracted directly from the Binance API payload.
- Update BinanceAccount::ProcessorTest assertions and fixtures to validate native fiat and fee calculation logic.

* fix(binance): process sync trades before caching transaction payload

- Reorder Binance processor execution to insert trade records into the database prior to updating the `raw_transactions_payload` cache. This guarantees that if a database insertion fails, the cache won't prematurely mark the sync as successful, ensuring the data is retried on the next run.
- Move `set_opening_anchor_balance(balance: 0)` out of the generic crypto exchange account builder and apply it specifically during Binance account creation.
- Refactor date parsing in BinanceItemsController to explicitly catch `ArgumentError` via a block instead of using a blanket inline `rescue`.
- Clean up the `setup_accounts` view template by removing hardcoded default translation strings.

* fix(binance): enhance trade sync logic and error propagation

- Pass `startTime` (from `sync_start_date`) to spot and futures trade endpoints on initial sync to optimize data fetching.
- Include previously synced futures pairs alongside spot pairs when resolving relevant symbols to properly recover sold-out assets.
- Re-raise exceptions in processor rescue blocks to prevent silent failures and ensure errors are correctly propagated to background jobs.
- Decrease Binance API `recvWindow` from 60000ms to 5000ms to align with recommended default timeout values.

app/controllers/binance_items_controller.rb

@@ -211,7 +211,23 @@ class BinanceItemsController < ApplicationController
   end
 
   def complete_account_setup
-    selected_accounts = Array(params[:selected_accounts]).reject(&:blank?)
+    setup_params = complete_account_setup_params
+
+    if setup_params[:sync_start_date].present?
+      parsed_date = begin
+        Date.parse(setup_params[:sync_start_date].to_s)
+      rescue ArgumentError
+        nil
+      end
+
+      if parsed_date.present? && parsed_date <= Date.current
+        @binance_item.update!(sync_start_date: parsed_date)
+      else
+        flash.now[:alert] = "Sync start date must be a valid date in the past."
+      end
+    end
+
+    selected_accounts = Array(setup_params[:selected_accounts]).reject(&:blank?)
     created_accounts = []
 
     selected_accounts.each do |binance_account_id|
@@ -284,4 +300,8 @@ class BinanceItemsController < ApplicationController
     def binance_item_params
       params.require(:binance_item).permit(:name, :sync_start_date, :api_key, :api_secret)
     end
+
+    def complete_account_setup_params
+      params.permit(:sync_start_date, selected_accounts: [])
+    end
 end