refactor(settle): 优化医保结算逻辑

- 扩展医保结算条件，支持 man_name 为 4 的情况
- 调整 is_mt 参数的赋值逻辑，优先处理 man_name 为 4 的情况
- 修复了 man_name 为 4 时未正确设置 is_mt 参数的问题

src/views/jiesuan/outpatientCharging.vue

@@ -1827,7 +1827,7 @@ export default {
             this.carddialogFormVisible = true
         },
         ybjs() {
-            if ((this.checktipes() && this.man_name != '1') || this.man_name == '2' || this.man_name == '3') {
+            if ((this.checktipes() && this.man_name != '1') || this.man_name == '2' || this.man_name == '3' || this.man_name == '4') {
                 if (this.channel == '5') {
                     this.$message({
                         message: '药房药库禁止医保结算，请转为自费结算！',
@@ -2106,7 +2106,7 @@ export default {
                 cash_pay: this.bxxxinfo.his_deduct_amount,
                 pre_key: this.bxxxinfo.pre_key,
                 cache_key: this.form.cache_key,
-                is_mt: this.man_name == '3' ? false : this.man_name == '2' ? true : this.selectTableArr[0] ? this.selectTableArr[0].settle_type.is_mt : '',
+                is_mt: this.man_name == '4' ? true : this.man_name == '3' ? false : this.man_name == '2' ? true : this.selectTableArr[0] ? this.selectTableArr[0].settle_type.is_mt : '',
                 settle_type: this.selectTableArr[0] ? this.selectTableArr[0].settle_type.code : '',
             }
 
@@ -2502,7 +2502,7 @@ export default {
                 patient_id: this.patientData.patient_id,
                 cache_key: data.cache_key,
                 prescription_nos: this.cost_id,
-                is_mt: this.man_name == '3' ? false : this.man_name == '2' ? true : this.selectTableArr[0] ? this.selectTableArr[0].settle_type.is_mt : '',
+                is_mt: this.man_name == '4' ? true : this.man_name == '3' ? false : this.man_name == '2' ? true : this.selectTableArr[0] ? this.selectTableArr[0].settle_type.is_mt : '',
                 family_pay: false,
                 settle_type: this.selectTableArr[0] ? this.selectTableArr[0].settle_type.code : '',
             })