feat(wits): 添加WITS TCP发送功能和配置重构

- 新增WitsConfig数据类用于WITS配置管理
- 在AppConfig中集成wits配置选项
- 重命名dependencies.py为config.py并重构配置加载逻辑
- 移除db/config.py文件中的TDengine配置相关代码
- 创建新的model.py文件定义MqttConfig、TmsConfig和TdengineConfig模型
- 更新MQTT模块导入路径从config.dependencies到config.config
- 添加WITS发送器脚本wits_sender.py实现TCP数据包发送
- 在README.md中添加WITS发送器使用说明和配置选项
- 添加WITS样本数据文件data/wits_sample.txt
- 添加requirements.md文档说明项目需求

README.md

@@ -1,4 +1,4 @@
-# MQTT Mock Service
+# MQTT Mock Service
 
 Simulates a service that:
 - Subscribes to the ingest topic (server -> broker)
@@ -10,6 +10,7 @@ Simulates a service that:
 Also includes:
 - A random data sender (every 3 seconds by default)
 - A simple subscriber that prints incoming payloads
+- A WITS TCP sender for the Java TCP receiver
 
 ## Setup
 ```
@@ -23,11 +24,6 @@ pip install -r requirements.txt
 python mqtt_mock.py --config config.yaml --mode listen
 ```
 
-When TDengine config exists in `config.yaml`, each message on `pub-topic` is inserted into:
-- Super table: `drilling_realtime_st`
-- Sub table: auto-generated as `drilling_realtime_<device_code>`
-- Tag value: fixed `device_code` from config (`GJ-304-0088`)
-
 ## Run (also publish test data)
 ```
 python mqtt_mock.py --config config.yaml --mode both --interval 2
@@ -43,6 +39,22 @@ python mqtt_sender.py --config config.yaml --interval 3
 python mqtt_subscriber.py --config config.yaml
 ```
 
+## Run WITS sender
+Send one generated WITS packet to `wits.host/wits.port` or fallback `tms.server-ip/tms.server-port`:
+```
+python wits_sender.py --config config.yaml
+```
+
+Send packets continuously every 2 seconds:
+```
+python wits_sender.py --config config.yaml --interval 2 --count 0
+```
+
+Send a raw packet from file:
+```
+python wits_sender.py --config config.yaml --source-file data/wits_sample.txt
+```
+
 ## Payload format (server -> broker)
 ```
 {
@@ -102,12 +114,15 @@ python mqtt_subscriber.py --config config.yaml
 ```
 
 ## Config
-- `pub-topic`: ingest topic from server
-- `sub-topic`: forward topic for other services to subscribe
-- `ack-topic`: optional ack topic
-- `data-file`: local append-only file (JSON Lines)
-- `equipment-sn`: default equipment_sn for simulated payloads
-- `test-id`: default test_id for simulated payloads
+- `mqtt.*`: MQTT broker and topic settings
+- `tms.device-code`: default device code for generated data
+- `tms.server-ip`: WITS target host fallback
+- `tms.server-port`: WITS target port fallback
+- `tms.timeout`: WITS socket timeout fallback
+- `wits.host`: optional explicit WITS target host
+- `wits.port`: optional explicit WITS target port
+- `wits.timeout`: optional explicit WITS socket timeout
+- `wits.source-file`: optional default WITS packet file path
 - `tdengine.url`: e.g. `jdbc:TAOS-RS://192.168.1.87:6041/tms`
 - `tdengine.username`: DB user
 - `tdengine.password`: DB password
@@ -115,7 +130,7 @@ python mqtt_subscriber.py --config config.yaml
 - `tdengine.stable`: default `drilling_realtime_st`
 
 ## Options
-- `--mode`: publish | listen | both
-- `--interval`: publish interval seconds
-- `--count`: publish count (0 = forever)
-- `--data-file`: override data-file in config
+- `mqtt_mock.py`: `--mode` `--interval` `--count` `--data-file`
+- `mqtt_sender.py`: `--interval` `--count`
+- `mqtt_subscriber.py`: `--topic`
+- `wits_sender.py`: `--host` `--port` `--timeout` `--source-file` `--interval` `--count`