fix: replace piped while loops with temp files to avoid pipefail SIGPIPE (#24350)

* fix: replace piped while loops with temp files to avoid pipefail SIGPIPE

The token usage analyzer workflows use set -euo pipefail which causes
jq | head | while read pipelines to fail with exit 141 (SIGPIPE) when
head closes the pipe early, silently aborting artifact downloads.

Write to temp files first, then read from them in while loops.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* Update .github/workflows/copilot-token-usage-analyzer.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update .github/workflows/claude-token-usage-analyzer.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update .github/workflows/copilot-token-usage-analyzer.lock.yml

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Update .github/workflows/claude-token-usage-analyzer.lock.yml

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* fix: recompile lock files after jq slicing updates

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: 3 people

.github/workflows/claude-token-usage-analyzer.lock.yml

@@ -69,15 +69,16 @@ steps:
       mkdir -p "$ARTIFACT_DIR"
 
       echo "📥 Downloading token-usage.jsonl artifacts..."
-      jq -r '.[].databaseId' /tmp/token-analyzer-claude/claude-runs.json 2>/dev/null | head -50 | while read -r run_id; do
+      jq -r '.[0:50] | .[].databaseId' /tmp/token-analyzer-claude/claude-runs.json > /tmp/token-analyzer-claude/run-ids.txt
+      while read -r run_id; do
         run_dir="$ARTIFACT_DIR/$run_id"
         mkdir -p "$run_dir"
         gh run download "$run_id" \
           --repo "$GITHUB_REPOSITORY" \
           --name "firewall-audit-logs" \
           --dir "$run_dir" \
           2>/dev/null || true
-      done
+      done < /tmp/token-analyzer-claude/run-ids.txt
 
       # Count how many token-usage.jsonl files we got
       JSONL_COUNT=$(find "$ARTIFACT_DIR" -name "token-usage.jsonl" 2>/dev/null | wc -l)
@@ -86,14 +87,15 @@ steps:
       # Merge all token-usage.jsonl files annotated with run_id
       MERGED_FILE="/tmp/token-analyzer-claude/token-usage-merged.jsonl"
       > "$MERGED_FILE"
-      find "$ARTIFACT_DIR" -name "token-usage.jsonl" | while read -r f; do
+      find "$ARTIFACT_DIR" -name "token-usage.jsonl" > /tmp/token-analyzer-claude/jsonl-files.txt 2>/dev/null || true
+      while read -r f; do
         run_id=$(echo "$f" | grep -oP '(?<=/artifacts/)\d+(?=/)' || true)
         while IFS= read -r line; do
           if [ -n "$line" ]; then
             echo "${line}" | jq --arg run_id "$run_id" '. + {run_id: $run_id}' >> "$MERGED_FILE" 2>/dev/null || true
           fi
         done < "$f"
-      done
+      done < /tmp/token-analyzer-claude/jsonl-files.txt
 
       RECORD_COUNT=$(wc -l < "$MERGED_FILE" 2>/dev/null || echo 0)
       echo "✅ Merged ${RECORD_COUNT} token usage records"