fix: fix: standardize logging across all agents — capture errors, log exit codes, consistent format (#367)

lib/pr-lifecycle.sh

@@ -357,11 +357,19 @@ pr_close() {
   local pr_num="$1"
 
   _prl_log "closing PR #${pr_num}"
-  curl -sf -X PATCH \
+  local resp http_code
+  resp=$(curl -sf -w "\n%{http_code}" -X PATCH \
     -H "Authorization: token ${FORGE_TOKEN}" \
     -H "Content-Type: application/json" \
     "${FORGE_API}/pulls/${pr_num}" \
-    -d '{"state":"closed"}' >/dev/null 2>&1 || true
+    -d '{"state":"closed"}' 2>/dev/null) || true
+  http_code=$(printf '%s\n' "$resp" | tail -1)
+  if [ "$http_code" != "200" ] && [ "$http_code" != "204" ]; then
+    local body
+    body=$(printf '%s\n' "$resp" | sed '$d' | head -1)
+    _prl_log "pr_close FAILED for PR #${pr_num}: HTTP ${http_code} ${body:0:200}"
+    return 1
+  fi
 }
 
 # ---------------------------------------------------------------------------
@@ -398,11 +406,17 @@ pr_walk_to_merge() {
       if [ "${_PR_CI_FAILURE_TYPE:-}" = "infra" ] && [ "$ci_retry_count" -lt 1 ]; then
         ci_retry_count=$((ci_retry_count + 1))
         _prl_log "infra failure — retriggering CI (retry ${ci_retry_count})"
-        ( cd "$worktree" && \
+        local rebase_output rebase_rc
+        rebase_output=$( ( cd "$worktree" && \
           git commit --allow-empty -m "ci: retrigger after infra failure" --no-verify && \
           git fetch "$remote" "${PRIMARY_BRANCH}" 2>/dev/null && \
           git rebase "${remote}/${PRIMARY_BRANCH}" && \
-          git push --force-with-lease "$remote" HEAD ) 2>&1 | tail -5 || true
+          git push --force-with-lease "$remote" HEAD ) 2>&1 ) || rebase_rc=$?
+        if [ -n "$rebase_rc" ] && [ "$rebase_rc" -ne 0 ]; then
+          _prl_log "infra retrigger FAILED (exit code $rebase_rc): $(echo "$rebase_output" | tail -3)"
+        else
+          _prl_log "infra retrigger succeeded"
+        fi
         continue
       fi