Auto-categorize investment contributions across all transfer paths (#924)

* Ensure investment contributions are auto-categorized with proper kind and category creation.

* Retrigger CI

test/controllers/transfer_matches_controller_test.rb

@@ -39,4 +39,24 @@ class TransferMatchesControllerTest < ActionDispatch::IntegrationTest
     assert_redirected_to transactions_url
     assert_equal "Transfer created", flash[:notice]
   end
+
+  test "assigns investment_contribution kind and category for investment destination" do
+    # Outflow from depository (positive amount), target is investment
+    outflow_entry = create_transaction(amount: 100, account: accounts(:depository))
+
+    post transaction_transfer_match_path(outflow_entry), params: {
+      transfer_match: {
+        method: "new",
+        target_account_id: accounts(:investment).id
+      }
+    }
+
+    outflow_entry.reload
+    outflow_txn = outflow_entry.entryable
+
+    assert_equal "investment_contribution", outflow_txn.kind
+
+    category = @user.family.investment_contributions_category
+    assert_equal category, outflow_txn.category
+  end
 end