Split env files into two

Author: psx95

samples/adk-sql-agent/README.md

@@ -35,13 +35,13 @@ Configure the environment and run the sample:
 python -m venv venv/
 source venv/bin/activate
 pip install -r requirements.txt
-env $(cat main.env | xargs) python main.py
+env $(cat opentelemetry.env | xargs) python main.py
 ```
 
 Alternatively if you have [`uv`](https://docs.astral.sh/uv/) installed:
 
 ```sh
-uv run --env-file main.env main.py
+uv run --env-file opentelemetry.env main.py
 ```
 
 ## Viewing the results

samples/adk-sql-agent/main.env renamed to samples/adk-sql-agent/opentelemetry.env

@@ -1,5 +1,2 @@
 OTEL_PYTHON_LOGGING_AUTO_INSTRUMENTATION_ENABLED=true
 OTEL_INSTRUMENTATION_GENAI_CAPTURE_MESSAGE_CONTENT=true
-
-GOOGLE_GENAI_USE_VERTEXAI=TRUE
-GOOGLE_CLOUD_LOCATION=us-central1

samples/adk-sql-agent/sql_agent/.env

@@ -0,0 +1,2 @@
+GOOGLE_GENAI_USE_VERTEXAI=TRUE
+GOOGLE_CLOUD_LOCATION=us-central1