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/frontend/src/stores/trialBalance.js

@@ -11,6 +11,16 @@ export const useTrialBalanceStore = defineStore("trialBalance", () => {
   const isLoading = ref(false);
   const error = ref(null);
 
+  // Totaluri din TOATE înregistrările filtrate (nu doar pagina curentă)
+  const totals = ref({
+    total_sold_precedent_debit: 0,
+    total_sold_precedent_credit: 0,
+    total_rulaj_lunar_debit: 0,
+    total_rulaj_lunar_credit: 0,
+    total_sold_final_debit: 0,
+    total_sold_final_credit: 0,
+  });
+
   const filters = ref({
     luna: new Date().getMonth() + 1, // Current month (1-12)
     an: new Date().getFullYear(), // Current year
@@ -83,6 +93,11 @@ export const useTrialBalanceStore = defineStore("trialBalance", () => {
           totalPages: paginationData.total_pages,
         };
 
+        // Store totals from ALL filtered records (not just current page)
+        if (response.data.data.totals) {
+          totals.value = response.data.data.totals;
+        }
+
         return { success: true };
       } else {
         throw new Error("Invalid response format");
@@ -146,6 +161,14 @@ export const useTrialBalanceStore = defineStore("trialBalance", () => {
     trialBalanceData.value = [];
     isLoading.value = false;
     error.value = null;
+    totals.value = {
+      total_sold_precedent_debit: 0,
+      total_sold_precedent_credit: 0,
+      total_rulaj_lunar_debit: 0,
+      total_rulaj_lunar_credit: 0,
+      total_sold_final_debit: 0,
+      total_sold_final_credit: 0,
+    };
     filters.value = {
       luna: new Date().getMonth() + 1,
       an: new Date().getFullYear(),
@@ -169,6 +192,7 @@ export const useTrialBalanceStore = defineStore("trialBalance", () => {
     trialBalanceData,
     isLoading,
     error,
+    totals,
     filters,
     pagination,
     sorting,