ci: add job logging initialization to production and staking workflows and fix systemd-sync script paths

- Added setup-job-logging.sh initialization step to production-tests.yml, all staking-tests.yml jobs, and systemd-sync.yml
- Removed redundant agent-coordinator package installation from production-tests.yml (already included in extra-packages)
- Fixed systemd-sync.yml to use relative paths (scripts/utils/link-systemd.sh) instead of absolute paths (/opt/aitbc/scripts/utils/link-systemd.sh)

scripts/ci/setup-job-logging.sh

@@ -0,0 +1,76 @@
+#!/bin/bash
+set -euo pipefail
+
+LOG_DIR="${AITBC_CI_LOG_DIR:-/opt/gitea-runner/logs}"
+WORKFLOW_NAME="${GITHUB_WORKFLOW:-workflow}"
+JOB_NAME="${GITHUB_JOB:-job}"
+RUN_ID="${GITHUB_RUN_ID:-${GITHUB_RUN_NUMBER:-$(date +%s)}}"
+RUN_NUMBER="${GITHUB_RUN_NUMBER:-}"
+RUN_ATTEMPT="${GITHUB_RUN_ATTEMPT:-1}"
+GITHUB_ENV_FILE="${GITHUB_ENV:-${GITEA_ENV:-}}"
+
+sanitize() {
+    printf '%s' "$1" | tr '[:upper:]' '[:lower:]' | sed -E 's/[^a-z0-9._-]+/-/g; s/^-+//; s/-+$//'
+}
+
+SAFE_WORKFLOW="$(sanitize "$WORKFLOW_NAME")"
+SAFE_JOB="$(sanitize "$JOB_NAME")"
+SAFE_ATTEMPT="$(sanitize "$RUN_ATTEMPT")"
+SAFE_WORKFLOW="${SAFE_WORKFLOW:-workflow}"
+SAFE_JOB="${SAFE_JOB:-job}"
+
+mkdir -p "$LOG_DIR"
+
+LOG_BASENAME="${SAFE_WORKFLOW}_${SAFE_JOB}_${RUN_ID}_attempt-${SAFE_ATTEMPT}"
+LOG_FILE="$LOG_DIR/${LOG_BASENAME}.log"
+INDEX_FILE="$LOG_DIR/index.tsv"
+LATEST_FILE="$LOG_DIR/latest.log"
+WORKFLOW_LATEST_FILE="$LOG_DIR/latest-${SAFE_WORKFLOW}.log"
+JOB_LATEST_FILE="$LOG_DIR/latest-${SAFE_WORKFLOW}-${SAFE_JOB}.log"
+ENV_FILE="/tmp/aitbc-ci-log-${RUN_ID}-${SAFE_JOB}.env"
+
+: > "$LOG_FILE"
+touch "$INDEX_FILE"
+
+printf '%s\t%s\t%s\t%s\t%s\t%s\t%s\n' \
+    "$(date -Iseconds)" \
+    "$RUN_ID" \
+    "$RUN_NUMBER" \
+    "$RUN_ATTEMPT" \
+    "$WORKFLOW_NAME" \
+    "$JOB_NAME" \
+    "$LOG_FILE" >> "$INDEX_FILE"
+
+ln -sfn "$LOG_FILE" "$LATEST_FILE"
+ln -sfn "$LOG_FILE" "$WORKFLOW_LATEST_FILE"
+ln -sfn "$LOG_FILE" "$JOB_LATEST_FILE"
+
+cat > "$ENV_FILE" <<EOF
+if [[ "\${AITBC_CI_LOGGING_ACTIVE:-}" == "1" ]]; then
+  return 0 2>/dev/null || :
+fi
+export AITBC_CI_LOGGING_ACTIVE=1
+export AITBC_CI_LOG_FILE="$LOG_FILE"
+exec > >(tee -a "$LOG_FILE") 2>&1
+echo "=== \${GITHUB_WORKFLOW:-workflow} / \${GITHUB_JOB:-job} :: \$(date -Iseconds) ==="
+EOF
+
+if [[ -n "$GITHUB_ENV_FILE" ]]; then
+    {
+        printf 'AITBC_CI_LOG_DIR=%s\n' "$LOG_DIR"
+        printf 'AITBC_CI_LOG_FILE=%s\n' "$LOG_FILE"
+        printf 'AITBC_CI_LOG_INDEX=%s\n' "$INDEX_FILE"
+        printf 'AITBC_CI_LOG_LATEST=%s\n' "$LATEST_FILE"
+        printf 'AITBC_CI_LOG_WORKFLOW_LATEST=%s\n' "$WORKFLOW_LATEST_FILE"
+        printf 'AITBC_CI_LOG_JOB_LATEST=%s\n' "$JOB_LATEST_FILE"
+        printf 'BASH_ENV=%s\n' "$ENV_FILE"
+    } >> "$GITHUB_ENV_FILE"
+else
+    echo "CI logging warning: GITHUB_ENV/GITEA_ENV not set; automatic logging for later steps is unavailable"
+fi
+
+echo "CI log file: $LOG_FILE"
+echo "CI latest log: $LATEST_FILE"
+echo "CI workflow latest: $WORKFLOW_LATEST_FILE"
+echo "CI job latest: $JOB_LATEST_FILE"
+echo "CI log index: $INDEX_FILE"