Initial commit: 风影 OA 全栈源码（API/Web/Flutter/IM）

含 Phase 1.1 IM seq 排序、断线重连、多端已读同步与微信式语音转文字 UI。
排除 node_modules、构建产物、安装包与 .env 密钥。

Co-authored-by: Cursor <cursoragent@cursor.com>

.env.example

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+NODE_ENV=development
+APP_PORT=3000
+APP_NAME=enterprise-ops
+API_PREFIX=api/v1
+CORS_ORIGINS=http://localhost:5173
+
+DATABASE_URL=postgresql://ops:ops_dev_only@localhost:5432/enterprise_ops
+REDIS_URL=redis://localhost:6379
+MINIO_ENDPOINT=localhost
+MINIO_PORT=9000
+MINIO_USE_SSL=false
+MINIO_ACCESS_KEY=opsadmin
+MINIO_SECRET_KEY=opsadmin_dev_only
+MINIO_BUCKET=enterprise-ops
+
+JWT_ACCESS_SECRET=change-me-access-secret-dev-only
+JWT_REFRESH_SECRET=change-me-refresh-secret-dev-only
+JWT_ACCESS_EXPIRES=15m
+JWT_REFRESH_EXPIRES=7d
+
+ALIYUN_SMS_ACCESS_KEY_ID=
+ALIYUN_SMS_ACCESS_KEY_SECRET=
+ALIYUN_SMS_ENDPOINT=dysmsapi.aliyuncs.com
+ALIYUN_SMS_REGION=cn-qingdao
+ALIYUN_SMS_DEFAULT_SIGN=江苏风影随行科技
+
+VIVO_PUSH_APP_ID=
+VIVO_PUSH_APP_KEY=
+VIVO_PUSH_APP_SECRET=
+OPPO_PUSH_APP_ID=
+OPPO_PUSH_APP_KEY=
+OPPO_PUSH_APP_SECRET=
+OPPO_PUSH_MASTER_SECRET=
+MEIZU_PUSH_APP_ID=
+MEIZU_PUSH_APP_KEY=
+MEIZU_PUSH_APP_SECRET=
+
+POSTGRES_USER=ops
+POSTGRES_PASSWORD=ops_dev_only
+POSTGRES_DB=enterprise_ops
+POSTGRES_PORT=5432
+REDIS_PORT=6379
+MINIO_API_PORT=9000
+MINIO_CONSOLE_PORT=9001