Fix downward dash not damaging enemies and add post-dash invincibility

Stomping was guarded by the invincibility check, so during a downward
dash the player could never deal stomp damage. Move the invincibility
guard to only protect against taking damage, not dealing it.

Extend dash invincibility by PLAYER_DASH_INV_GRACE (0.15s) past the
dash duration so the player is briefly protected after landing.

Closes #15

.gitea/workflows/deploy.yaml

@@ -19,6 +19,14 @@ jobs:
           git config --global http.https://git.kimchi.sslVerify false
           git clone --depth 1 https://${{ secrets.REGISTRY_USER }}:${{ secrets.REGISTRY_PASSWORD }}@git.kimchi/tas/major_tom.git .
 
+      - name: Debug registry auth
+        run: |
+          curl -s -D- http://git.kimchi/v2/ | head -15
+          TOKEN=$(curl -s "http://git.kimchi/v2/token?service=container_registry&scope=repository:tas/major_tom:push,pull" -u "${{
+          secrets.REGISTRY_USER }}:${{ secrets.REGISTRY_PASSWORD }}" | jq -r .token)
+          echo "Token received: ${TOKEN:0:20}..."
+          curl -s -D- -H "Authorization: Bearer $TOKEN" http://git.kimchi/v2/tas/major_tom/tags/list | head -15
+
       - name: Build and push container image
         run: |
           set -ex
@@ -41,10 +49,9 @@ jobs:
       - name: Restart deployment on k3s
         run: |
           mkdir -p ~/.kube
-          echo "${{ secrets.KUBECONFIG }}" | base64 -d > ~/.kube/config
+          echo "${{ secrets.KUBECONFIG }}" > ~/.kube/config
           chmod 600 ~/.kube/config
-          kubectl delete pod -l app=${{ env.DEPLOYMENT }} -n ${{ env.NAMESPACE }}
 
           POD_NAME=$(kubectl get pods -l app=jnr-web -n jnr-web -o jsonpath='{.items[0].metadata.name}')
           echo "Deleting running pod" "$POD_NAME"
-          
+          kubectl delete pod $POD_NAME -n jnr-web