Fix Bug #489: 【医嘱闭环】医生站签发单条长期药品医嘱，护士校对界面生成重复（两条）待校对记录

Root cause: The SQL query in AdviceProcessAppMapper.xml used a plain LEFT JOIN with
med_medication_dispense on med_req_id. When a single medication request had multiple
dispense records (e.g., from repeated executions or summary operations), the JOIN
produced multiple rows per request — up to 222 rows for one request. SELECT DISTINCT
could not deduplicate because dispense_status values differed across rows.

Fix: Replace the plain LEFT JOIN with LEFT JOIN LATERAL (subquery ORDER BY create_time
DESC LIMIT 1) to fetch only the most recent dispense record per medication request.
This ensures exactly one row per request regardless of how many dispense records exist.

Verified: SQL query now returns 0 duplicate rows across all medication requests.

openhis-server-new/openhis-application/src/main/resources/mapper/inhospitalnursestation/AdviceProcessAppMapper.xml

@@ -280,9 +280,13 @@
                                          aa.balance_amount
                            ) AS personal_account
                               ON personal_account.encounter_id = ae.id
-                     LEFT JOIN med_medication_dispense mmd
-                               ON mmd.med_req_id = T1.id
-                                   AND mmd.delete_flag = '0'
+                     LEFT JOIN LATERAL (
+                         SELECT status_enum
+                         FROM med_medication_dispense
+                         WHERE med_req_id = T1.id AND delete_flag = '0'
+                         ORDER BY create_time DESC
+                         LIMIT 1
+                     ) mmd ON true
                 WHERE T1.delete_flag = '0'
                 AND T1.refund_medicine_id IS NULL
                 AND T1.generate_source_enum = #{doctorPrescription}