Auto-calculation: formulas recalculate on cell change

- Template: calcMode=auto, calcOnSave=1
- VBA: removed xlCalculationManual, added ForceRefresh macro
  (clears cache + Application.Calculate for manual DB refresh)
- Workflow: change Setup!B6:B9 -> formulas recalculate automatically

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

notes/accounting/excel_api/GLAccountsExcelApi.bas

@@ -70,11 +70,11 @@ End Sub
 
 ' ---- Setup ----
 
-' A lancer une seule fois apres import du module.
-' Passe Excel en calcul manuel : les formules ne se recalculent que sur F9.
-Public Sub SetManualCalculation()
-    Application.Calculation = xlCalculationManual
-    MsgBox "Calcul manuel actif. F9 = recalculer toutes les formules GL.", vbInformation
+' Vide le cache pour forcer un rafraichissement DB au prochain recalcul.
+' Utile si les donnees ont change cote serveur.
+Public Sub ForceRefresh()
+    ClearGLApiCache
+    Application.Calculate
 End Sub
 
 ' ---- Mode macro : RefreshGLApi ----
@@ -100,7 +100,6 @@ Public Sub RefreshGLApi()
 
     Application.EnableEvents = False
     Application.ScreenUpdating = False
-    Application.Calculation = xlCalculationManual
 
     Dim company As String
     Dim account As String