fix: support modern kaggle auth in workflows

Author: mylastresort

.github/workflows/debug-kaggle.yml

@@ -20,11 +20,15 @@ jobs:
 
       - name: Test secret lengths
         env:
+          KAGGLE_API_TOKEN: ${{ secrets.KAGGLE_API_TOKEN }}
           KAGGLE_USERNAME: ${{ secrets.KAGGLE_USERNAME }}
           KAGGLE_KEY: ${{ secrets.KAGGLE_KEY }}
         run: |
+          echo "KAGGLE_API_TOKEN length: ${#KAGGLE_API_TOKEN}"
           echo "KAGGLE_USERNAME length: ${#KAGGLE_USERNAME}"
           echo "KAGGLE_KEY length: ${#KAGGLE_KEY}"
+          echo "KAGGLE_API_TOKEN first 8 chars: ${KAGGLE_API_TOKEN:0:8}"
+          echo "KAGGLE_API_TOKEN last 8 chars: ${KAGGLE_API_TOKEN: -8}"
           echo "KAGGLE_USERNAME first 5 chars: ${KAGGLE_USERNAME:0:5}"
           echo "KAGGLE_KEY first 10 chars: ${KAGGLE_KEY:0:10}"
           echo "KAGGLE_KEY last 10 chars: ${KAGGLE_KEY: -10}"
@@ -34,17 +38,28 @@ jobs:
 
       - name: Test Kaggle auth with credentials
         env:
+          KAGGLE_API_TOKEN: ${{ secrets.KAGGLE_API_TOKEN }}
           KAGGLE_USERNAME: ${{ secrets.KAGGLE_USERNAME }}
           KAGGLE_KEY: ${{ secrets.KAGGLE_KEY }}
         run: |
           mkdir -p ~/.kaggle
-          cat > ~/.kaggle/kaggle.json <<EOF
+          if [ -n "${KAGGLE_API_TOKEN}" ]; then
+            printf '%s' "${KAGGLE_API_TOKEN}" > ~/.kaggle/access_token
+            chmod 600 ~/.kaggle/access_token
+            echo "Using ~/.kaggle/access_token"
+          elif [ -n "${KAGGLE_USERNAME}" ] && [ -n "${KAGGLE_KEY}" ]; then
+            cat > ~/.kaggle/kaggle.json <<EOF
           {"username":"${KAGGLE_USERNAME}","key":"${KAGGLE_KEY}"}
           EOF
-          chmod 600 ~/.kaggle/kaggle.json
-          cat ~/.kaggle/kaggle.json
+            chmod 600 ~/.kaggle/kaggle.json
+            echo "Using ~/.kaggle/kaggle.json"
+          else
+            echo "No Kaggle credentials available in secrets"
+            exit 1
+          fi
           echo "---"
-          kaggle auth status
+          kaggle auth print-access-token > /dev/null
+          echo "Auth token exchange succeeded"
 
       - name: List kernels
         run: kaggle kernels list --user mylastresort

.github/workflows/kaggle-kernels.yml

@@ -23,14 +23,26 @@ jobs:
 
       - name: Configure Kaggle credentials
         env:
+          KAGGLE_API_TOKEN: ${{ secrets.KAGGLE_API_TOKEN }}
           KAGGLE_USERNAME: ${{ secrets.KAGGLE_USERNAME }}
           KAGGLE_KEY: ${{ secrets.KAGGLE_KEY }}
         run: |
           mkdir -p ~/.kaggle
-          cat > ~/.kaggle/kaggle.json <<EOF
+          if [ -n "${KAGGLE_API_TOKEN}" ]; then
+            printf '%s' "${KAGGLE_API_TOKEN}" > ~/.kaggle/access_token
+            chmod 600 ~/.kaggle/access_token
+          elif [ -n "${KAGGLE_USERNAME}" ] && [ -n "${KAGGLE_KEY}" ]; then
+            cat > ~/.kaggle/kaggle.json <<EOF
           {"username":"${KAGGLE_USERNAME}","key":"${KAGGLE_KEY}"}
           EOF
-          chmod 600 ~/.kaggle/kaggle.json
+            chmod 600 ~/.kaggle/kaggle.json
+          else
+            echo "No Kaggle credentials found. Set KAGGLE_API_TOKEN or KAGGLE_USERNAME/KAGGLE_KEY secrets."
+            exit 1
+          fi
+
+      - name: Verify Kaggle authentication
+        run: kaggle auth print-access-token > /dev/null
 
       - name: Push notebooks to Kaggle
         run: |