chore: 添加设计资料和示例工程

sample/server/etc/sample.env

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+# systemd EnvironmentFile 示例，复制为 /data/app/etc/sample.env 后按需修改
+BSM_Workspace=default
+BSM_RuntimeMode=prod
+BSM_Prefix=/data/app
+BSM_JwtSecretKey=change-me-to-a-random-string

sample/server/etc/sample.service

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+[Unit]
+Description=Sample Service
+ 
+[Service]
+Type=simple
+Restart=always
+RestartSec=5s
+EnvironmentFile=/data/app/etc/sample.env
+ExecStart=/data/app/sample
+WorkingDirectory=/data/app/
+StandardOutput=file:/data/app/logs/sample.log
+StandardError=file:/data/app/logs/sample.error.log
+
+ 
+[Install]
+WantedBy=multi-user.target

sample/server/etc/sample_dev.yaml

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+Service: sample
+Port: 12426
+
+Databases:
+  Driver: postgres
+  Source:
+    - host=127.0.0.1 user=postgres password=change-me dbname=sample_dev port=5432 sslmode=disable TimeZone=Asia/Shanghai
+
+# Redis cache example. Replace the password and host before using outside local development.
+Cache: redis://default:change-me@127.0.0.1:6379/0
+
+# Enable microservice mode when this sample is deployed behind the service mesh.
+OnMicroService: false
+
+# Shared secret for microservice calls. Use a random value in real environments.
+SecretKey: change-me-to-a-random-string
+
+# Rpc:
+#   fts:
+#     Endpoint: https://api-v2.traingo.cn/fts/v2
+#     SecretKey: change-me-to-a-random-string
+
+# Tracing and performance monitoring example.
+# APM:
+#   Platform: elasticAPM
+#   Endpoint: http://127.0.0.1:14268/api/traces

sample/server/etc/sample_prod.yaml

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+Service: sample
+Port: 12426
+
+Databases:
+  Driver: postgres
+  Source:
+    - host=db.example.internal user=sample_app password=change-me dbname=sample_prod port=5432 sslmode=require TimeZone=Asia/Shanghai
+
+# Redis cache example. Replace the password and host before using in production.
+Cache: redis://default:change-me@redis.example.internal:6379/0
+
+# Enable microservice mode when this sample is deployed behind the service mesh.
+OnMicroService: false
+
+# Shared secret for microservice calls. Use a random value in real environments.
+SecretKey: change-me-to-a-random-string
+
+# Rpc:
+#   fts:
+#     Endpoint: https://api-v2.traingo.cn/fts/v2
+#     SecretKey: change-me-to-a-random-string
+
+# Tracing and performance monitoring example.
+# APM:
+#   Platform: elasticAPM
+#   Endpoint: http://127.0.0.1:14268/api/traces

sample/server/etc/sample_test.yaml

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+Service: sample
+Port: 12426
+
+Databases:
+  Driver: postgres
+  Source:
+    - host=127.0.0.1 user=postgres password=change-me dbname=sample_test port=5432 sslmode=disable TimeZone=Asia/Shanghai
+
+# Redis cache example. Replace the password and host before using outside local development.
+Cache: redis://default:change-me@127.0.0.1:6379/0
+
+# Enable microservice mode when this sample is deployed behind the service mesh.
+OnMicroService: false
+
+# Shared secret for microservice calls. Use a random value in real environments.
+SecretKey: change-me-to-a-random-string
+
+# Rpc:
+#   fts:
+#     Endpoint: https://api-v2.traingo.cn/fts/v2
+#     SecretKey: change-me-to-a-random-string
+
+# Tracing and performance monitoring example.
+# APM:
+#   Platform: elasticAPM
+#   Endpoint: http://127.0.0.1:14268/api/traces