feat(emr): 添加数据库迁移脚本同步老病历数据

- 自动清空假数据
- 从doc_emr同步修订历史（每条病历创建初始修订记录）
- 从doc_emr同步搜索索引（提取患者、诊断、医生等信息）
- 应用启动时自动执行

healthlink-his-server/healthlink-his-application/src/main/resources/db/migration/V100__sync_existing_emr_data.sql

@@ -0,0 +1,78 @@
+-- V100__sync_existing_emr_data.sql
+-- 同步已有的门诊/住院病历到修订历史和搜索索引
+
+-- 1. 清空假数据
+TRUNCATE TABLE emr_revision CASCADE;
+TRUNCATE TABLE emr_search_index CASCADE;
+
+-- 2. 从doc_emr同步修订历史（为每条病历创建初始修订记录）
+INSERT INTO emr_revision (
+    id, emr_id, encounter_id, revision_number,
+    operator_id, operator_name, operation_type,
+    diff_content, snapshot_content, create_time
+)
+SELECT
+    nextval('emr_revision_id_seq'),
+    e.id,
+    e.encounter_id,
+    1,
+    COALESCE(e.record_id, 1),
+    '系统同步',
+    'CREATE',
+    '初始创建 - 从历史病历同步',
+    e.context_json,
+    COALESCE(e.create_time, NOW())
+FROM doc_emr e
+WHERE e.id IS NOT NULL
+  AND NOT EXISTS (
+    SELECT 1 FROM emr_revision r WHERE r.emr_id = e.id
+  );
+
+-- 3. 从doc_emr同步搜索索引
+INSERT INTO emr_search_index (
+    id, emr_id, encounter_id, patient_id, patient_name,
+    emr_type, emr_title, diagnosis_text,
+    doctor_name, department_name, create_time, update_time
+)
+SELECT
+    nextval('emr_search_index_id_seq'),
+    e.id,
+    e.encounter_id,
+    e.patient_id,
+    COALESCE(p.name, '患者' || e.patient_id),
+    CASE
+        WHEN e.class_enum = 1 THEN 'OUTPATIENT'
+        WHEN e.class_enum = 2 THEN 'INPATIENT'
+        ELSE 'OTHER'
+    END,
+    COALESCE(
+        NULLIF(TRIM(BOTH '"' FROM
+            SPLIT_PART(
+                SPLIT_PART(e.context_json, '"chiefComplaint"', 2),
+                ':', 2
+            )
+        ), ''),
+        '未命名病历'
+    ),
+    COALESCE(
+        NULLIF(TRIM(BOTH '"' FROM
+            SPLIT_PART(
+                SPLIT_PART(e.context_json, '"diagnosis"', 2),
+                ':', 2
+            )
+        ), ''),
+        ''
+    ),
+    COALESCE(u.name, '医生' || e.record_id),
+    COALESCE(o.name, '未知科室'),
+    COALESCE(e.create_time, NOW()),
+    COALESCE(e.update_time, NOW())
+FROM doc_emr e
+LEFT JOIN patient p ON e.patient_id = p.id
+LEFT JOIN sys_user u ON e.record_id = u.user_id
+LEFT JOIN adm_encounter enc ON e.encounter_id = enc.id
+LEFT JOIN sys_organization o ON enc.organization_id = o.id
+WHERE e.id IS NOT NULL
+  AND NOT EXISTS (
+    SELECT 1 FROM emr_search_index si WHERE si.emr_id = e.id
+  );