refactor: 重组项目目录结构

将 doc/ 目录重组为更标准的结构：

目录变更：
- doc/ → docs/ (文档目录，只包含 .md 文件)
- doc/sql/ → database/ (数据库脚本目录)
  - database/bladex/ (BladeX 框架数据库)
  - database/flowable/ (Flowable 工作流数据库)
  - database/martial-db/ (武术系统业务数据库)
  - database/upgrade/ (数据库升级脚本)
- doc/script/ → scripts/ (部署和运维脚本)
  - scripts/docker/ (Docker 部署脚本)
  - scripts/fatjar/ (Fat JAR 启动脚本)

优势：
- 符合标准项目结构规范
- 文档、数据库、脚本分离更清晰
- 便于维护和查找

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

scripts/docker/elk/filebeat.yml

@@ -0,0 +1,37 @@
+filebeat.inputs:
+  - type: log
+    enabled: true
+    paths:
+      # 当前目录下的所有.log文件
+      - /home/project/elk/logs/*.log
+    multiline.pattern: ^\[
+    multiline.negate: true
+    multiline.match: after
+  - type: tcp
+    enabled: true
+    max_message_size: 10MiB
+    host: "0.0.0.0:9000"
+
+filebeat.config.modules:
+  path: ${path.config}/modules.d/*.yml
+  reload.enabled: false
+
+setup.template.settings:
+  index.number_of_shards: 1
+
+setup.dashboards.enabled: false
+
+setup.kibana:
+  host: "http://kibana:5601"
+
+# 不直接传输至ES
+#output.elasticsearch:
+# hosts: ["http://es-master:9200"]
+# index: "filebeat-%{[beat.version]}-%{+yyyy.MM.dd}"
+
+output.logstash:
+  hosts: ["logstash:5044"]
+
+processors:
+  - add_host_metadata: ~
+  - add_cloud_metadata: ~