feat: Add totals from all filtered records to invoices, treasury, and trial balance

Previously, totals were computed client-side from only the current page data,
which gave incorrect results when paginating. Now the backend calculates totals
across ALL filtered records and returns them in the API response.

- Invoice: Add total_sold_all field for sum of all filtered invoice balances
- Treasury: Add sold_precedent_all, total_incasari_all, total_plati_all, sold_final_all
- Trial Balance: Add 6-column totals (debit/credit for each balance type)
- Frontend stores and views updated to use backend totals

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

reports-app/backend/app/services/trial_balance_service.py

@@ -135,6 +135,29 @@ class TrialBalanceService:
                 cursor.execute(count_query, params)
                 total_count = cursor.fetchone()[0]
 
+                # Query pentru TOTALURI din TOATE înregistrările filtrate (nu doar pagina curentă)
+                totals_query = f"""
+                    SELECT
+                        NVL(SUM(PRECDEB), 0) as total_prec_deb,
+                        NVL(SUM(PRECCRED), 0) as total_prec_cred,
+                        NVL(SUM(RULDEB), 0) as total_rul_deb,
+                        NVL(SUM(RULCRED), 0) as total_rul_cred,
+                        NVL(SUM(SOLDDEB), 0) as total_sold_deb,
+                        NVL(SUM(SOLDCRED), 0) as total_sold_cred
+                    FROM ({base_query})
+                """
+                cursor.execute(totals_query, params)
+                totals_row = cursor.fetchone()
+
+                totals = {
+                    "total_sold_precedent_debit": Decimal(str(totals_row[0])) if totals_row else Decimal('0.00'),
+                    "total_sold_precedent_credit": Decimal(str(totals_row[1])) if totals_row else Decimal('0.00'),
+                    "total_rulaj_lunar_debit": Decimal(str(totals_row[2])) if totals_row else Decimal('0.00'),
+                    "total_rulaj_lunar_credit": Decimal(str(totals_row[3])) if totals_row else Decimal('0.00'),
+                    "total_sold_final_debit": Decimal(str(totals_row[4])) if totals_row else Decimal('0.00'),
+                    "total_sold_final_credit": Decimal(str(totals_row[5])) if totals_row else Decimal('0.00')
+                }
+
                 # Add sorting
                 base_query += f" ORDER BY {sort_by.upper()} {sort_order.upper()}"
 
@@ -189,5 +212,7 @@ class TrialBalanceService:
                         "an": an,
                         "cont_filter": cont_filter,
                         "denumire_filter": denumire_filter
-                    }
+                    },
+                    # Totaluri din TOATE înregistrările filtrate (nu doar pagina curentă)
+                    "totals": totals
                 }