[FIX] budget_control_purchase: add precommit check budget function

Support for other module can check budget precommit in PO and Actual.
Standard will not check precommit because PO and Actual has next state draft is commit budget.
So, precommit budget is not need.

However, extensnion module like 'base_tier_validation_check_budget' can check budget in state draft.
we will improved base module budget for support precommit check budget

budget_control_purchase/models/account_move_line.py

@@ -35,8 +35,8 @@ def uncommit_purchase_budget(self):
         ):
             inv_state = ml.move_id.state
             move_type = ml.move_id.move_type
-            # Cancel or draft, not commitment line
-            if inv_state != "posted":
+            # State Cancel or draft and not context force commit, not commitment line
+            if not self.env.context.get("force_commit") and inv_state != "posted":
                 self.env["purchase.budget.move"].search(
                     [("move_line_id", "=", ml.id)]
                 ).unlink()

budget_control_purchase/models/budget_period.py

@@ -36,3 +36,17 @@ def _get_eligible_budget_period(self, date=False, doc_type=False):
                 or (not l.control_budget and l.purchase)
             )
         return budget_period
+
+    @api.model
+    def check_budget_precommit(self, doclines, doc_type="account"):
+        """This function add for the extension module can
+        call this function to precommit check budget"""
+        budget_moves = False
+        if doc_type == "purchase":
+            budget_moves = doclines.with_context(
+                force_commit=True
+            ).uncommit_purchase_request_budget()
+        res = super().check_budget_precommit(doclines, doc_type=doc_type)
+        if budget_moves:
+            budget_moves.unlink()
+        return res