✨ feat(*): 重构PCB放行流程并接入双扫码校验

- 将流程改为 OMRON FINS + TCP 双扫码 + SFTP 文件校验
- 新增文件校验与扫码结果汇总实现，补充对应单测
- 同步更新流程设计文档、配置和系统设置页面文案

src/AxiOmron.PcbCheck/appConfig.Development.json

@@ -1,9 +1,28 @@
 {
   "Plc": {
-    "Host": "127.0.0.1"
+    "Host": "127.0.0.1",
+    "Port": 9600
   },
   "Scanner": {
-    "PortName": "COM3"
+    "Scanner1": {
+      "Name": "扫码枪1",
+      "Host": "127.0.0.1",
+      "Port": 9001
+    },
+    "Scanner2": {
+      "Name": "扫码枪2",
+      "Host": "127.0.0.1",
+      "Port": 9002
+    }
+  },
+  "FileCheck": {
+    "Provider": "Sftp",
+    "FileNamePattern": "${barcode}.txt",
+    "RetryIntervalSeconds": 2,
+    "MaxRetryCount": 3,
+    "Local": {
+      "RootPath": "D:\\PcbCheck\\Files"
+    }
   },
   "Sftp": {
     "Host": "127.0.0.1",