move docs figures to assets

Author: ioki-smore

docs/src/user-guide/images/1.png docs/assets/images/1.pngdocs/src/user-guide/images/1.png renamed to docs/assets/images/1.png

@@ -7,6 +7,7 @@ title = "DeepTrace Documentation"
 description = "Comprehensive documentation for DeepTrace - A non-intrusive distributed tracing framework for microservices"
 
 [build]
+extra-watch-dirs = ["assets"]
 build-dir = "book"
 create-missing = true
 

docs/src/user-guide/images/2.png docs/assets/images/2.pngdocs/src/user-guide/images/2.png renamed to docs/assets/images/2.png

@@ -290,7 +290,7 @@ This guide demonstrates the deployment of a multi-node Elasticsearch cluster (in
   ```
 - Log in using the `elastic` username and password to verify the availability of the Kibana visualization interface.
 
-![Kibana Frontend Interface](images/db.png)
+![Kibana Frontend Interface](../../assets/images/db.png)
 
 #### 4. Client Read/Write Data Test
 Below is an example Python script to test data read/write operations:

docs/src/user-guide/images/3.png docs/assets/images/3.pngdocs/src/user-guide/images/3.png renamed to docs/assets/images/3.png

@@ -93,14 +93,14 @@ To deploy the frontend, follow these steps:
 ### Trace Chain Tracking Module
 Real-time tracking of service call chains, presenting data such as request count, error count, and response latency through charts. Supports filtering by response status, endpoint, and application protocol. Users can view detailed information about specific call chains (e.g., topology, latency, number of spans), aiding in identifying issues in service calls.
 
-![Trace Chain Tracking Module](images/1.png)  <!-- Replace # with the actual image link -->
+![Trace Chain Tracking Module](../../assets/images/1.png)  <!-- Replace # with the actual image link -->
 
 ### Trace Chain Topology Module
 Displays the relationships between service nodes in the form of a topology graph, showing metrics such as QPS, average latency, and error rate for each service. This helps analyze the health and dependencies of service calls, making it easier to identify abnormal service nodes.
 
-![Trace Chain Topology Module](images/2.png)  <!-- Replace # with the actual image link -->
+![Trace Chain Topology Module](../../assets/images/2.png)  <!-- Replace # with the actual image link -->
 
 ### Collector Management Module
 Manages the list and basic information of collectors (e.g., CPU cores, running status, system version). Supports operations such as registration, enabling, and disabling. This module provides data collection support for monitoring functions like call chain tracking and metric collection.
 
-![Collector Management Module](images/3.png)  <!-- Replace # with the actual image link -->
+![Collector Management Module](../../assets/images/3.png)  <!-- Replace # with the actual image link -->