chore: standardize single env var for challenges n strikes

Author: GangGreenTemperTatum

.env.example

@@ -1,7 +1,6 @@
 DREADNODE_SERVER_URL="https://platform.dreadnode.io"
 # See https://platform.dreadnode.io/account to get your API token and key (same value)
-DREADNODE_API_TOKEN=YOUR_DREADNODE_API_TOKEN
-DREADNODE_API_KEY=YOUR_DREADNODE_API_KEY
+DREADNODE_TOKEN=YOUR_DREADNODE_API_TOKEN
 DREADNODE_LOCAL_DIR="runs/"
 LOGFIRE_IGNORE_NO_CONFIG=1
 

README.md

@@ -60,7 +60,7 @@ uv run -m airtbench --help
 ### Basic Usage
 
 ```bash
-uv run -m airtbench --model $MODEL --project $PROJECT --platform-api-key $DREADNODE_API_KEY --token $DREADNODE_API_TOKEN --server https://platform.dreadnode.io --max-steps 100 --inference_timeout 240 --enable-cache --no-give-up --challenges bear1 bear2
+uv run -m airtbench --model $MODEL --project $PROJECT --platform-api-key $DREADNODE_TOKEN --token $DREADNODE_TOKEN --server https://platform.dreadnode.io --max-steps 100 --inference_timeout 240 --enable-cache --no-give-up --challenges bear1 bear2
 ```
 
 ### Challenge Filtering