refactor: move tests/client-sdk to tests/api (#1376)

This PR moves the client-sdk tests to the api directory to better
reflect their purpose and improve code organization.

tests/api/README.md

@@ -3,23 +3,23 @@ You can run llama stack integration tests on either a Llama Stack Library or a L
 
 To test on a Llama Stack library with certain configuration, run
 ```bash
-LLAMA_STACK_CONFIG=./llama_stack/templates/cerebras/run.yaml pytest -s -v tests/client-sdk/inference/
+LLAMA_STACK_CONFIG=./llama_stack/templates/cerebras/run.yaml pytest -s -v tests/api/inference/
 ```
 or just the template name
 ```bash
-LLAMA_STACK_CONFIG=together pytest -s -v tests/client-sdk/inference/
+LLAMA_STACK_CONFIG=together pytest -s -v tests/api/inference/
 ```
 
 To test on a Llama Stack endpoint, run
 ```bash
-LLAMA_STACK_BASE_URL=http://localhost:8089 pytest -s -v tests/client-sdk/inference
+LLAMA_STACK_BASE_URL=http://localhost:8089 pytest -s -v tests/api/inference
 ```
 
 ## Report Generation
 
 To generate a report, run with `--report` option
 ```bash
-LLAMA_STACK_CONFIG=together pytest -s -v report.md tests/client-sdk/ --report
+LLAMA_STACK_CONFIG=together pytest -s -v report.md tests/api/ --report
 ```
 
 ## Common options

tests/api/inference/test_vision_inference.py

@@ -35,7 +35,7 @@ def test_image_chat_completion_non_streaming(client_with_models, vision_model_id
                 "type": "image",
                 "image": {
                     "url": {
-                        "uri": "https://raw.githubusercontent.com/meta-llama/llama-stack/main/tests/client-sdk/inference/dog.png"
+                        "uri": "https://raw.githubusercontent.com/meta-llama/llama-stack/main/tests/api/inference/dog.png"
                     },
                 },
             },
@@ -63,7 +63,7 @@ def test_image_chat_completion_streaming(client_with_models, vision_model_id):
                 "type": "image",
                 "image": {
                     "url": {
-                        "uri": "https://raw.githubusercontent.com/meta-llama/llama-stack/main/tests/client-sdk/inference/dog.png"
+                        "uri": "https://raw.githubusercontent.com/meta-llama/llama-stack/main/tests/api/inference/dog.png"
                     },
                 },
             },