ci: fix heredoc pwd expansion, backtick substitution, combine bench log steps

- submit-job.sh: escape $(pwd) in heredoc so it expands on the compute
  node after cd $SLURM_SUBMIT_DIR, not on the login node at sbatch time
- submit-job.sh: replace backtick command substitution with $() for
  job_slug (modern bash style, consistent with rest of script)
- bench.yml: combine 'Print Per-Case Failure Logs' and 'Print Per-Case
  Success Logs' into a single 'Print Per-Case Logs' step that labels
  each output as [PASSED] or [FAILED] inline

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: sbryngelson

.github/workflows/bench.yml

@@ -145,28 +145,18 @@ jobs:
           cat pr/bench-${{ matrix.device }}-${{ matrix.interface }}.* 2>/dev/null || true
           cat master/bench-${{ matrix.device }}-${{ matrix.interface }}.* 2>/dev/null || true
 
-      - name: Print Per-Case Failure Logs
-        if: always()
-        run: |
-          for out in pr/build/benchmarks/*/*.out master/build/benchmarks/*/*.out; do
-            [ -f "$out" ] || continue
-            yaml="${out%.out}.yaml"
-            if [ ! -f "$yaml" ]; then
-              echo "=== [FAILED] $out ==="
-              cat "$out"
-            fi
-          done
-
-      - name: Print Per-Case Success Logs
+      - name: Print Per-Case Logs
         if: always()
         run: |
           for out in pr/build/benchmarks/*/*.out master/build/benchmarks/*/*.out; do
             [ -f "$out" ] || continue
             yaml="${out%.out}.yaml"
             if [ -f "$yaml" ]; then
               echo "=== [PASSED] $out ==="
-              cat "$out"
+            else
+              echo "=== [FAILED] $out ==="
             fi
+            cat "$out"
           done
 
       # All other runners (non-Phoenix) just run without special env

.github/workflows/phoenix/submit-job.sh

@@ -61,7 +61,7 @@ else
     exit 1
 fi
 
-job_slug="`basename "$1" | sed 's/\.sh$//' | sed 's/[^a-zA-Z0-9]/-/g'`-$2-$3"
+job_slug="$(basename "$1" | sed 's/\.sh$//' | sed 's/[^a-zA-Z0-9]/-/g')-$2-$3"
 output_file="$job_slug.out"
 id_file="${job_slug}.slurm_job_id"
 
@@ -98,7 +98,7 @@ set -e
 set -x
 
 cd "\$SLURM_SUBMIT_DIR"
-echo "Running in $(pwd):"
+echo "Running in \$(pwd):"
 
 job_slug="$job_slug"
 job_device="$2"