Add a human-merge label that keeps autopilot from merging

autopilot skips both human checkpoints: approval before the build and the
merge. Scheduled update issues in homelab want the hands-off build but a human
merge, since merging there deploys. With human-merge also on the issue, @pm is
told to hand back at phase 3 and publish.sh refuses MERGE_PR.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

.gitea/workflows/scripts/run-agent.sh

@@ -3,7 +3,7 @@
 # plain-text reply (/tmp/agent_out.md) plus the raw event stream (/tmp/events.jsonl).
 #
 # Required env (provided by the workflow step):
-#   XAI_API_KEY SELF_TOKEN NAME MODEL VISION MODE HAS_IMAGES BRANCH AUTOPILOT NUM TITLE
+#   XAI_API_KEY SELF_TOKEN NAME MODEL VISION MODE HAS_IMAGES BRANCH AUTOPILOT AUTOMERGE NUM TITLE
 #   IBODY CMT
 #   FILES   (the opencode -f image flags, from the imgs step output)
 #   AUTOPILOT is 'true' when the issue carries the `autopilot` label (label-gated autopilot mode).
@@ -74,14 +74,21 @@ if [ "$MODE" = "comment" ]; then
    auto-start any dev — the maintainer @mentions an agent on each sub-issue when ready."
     if [ "$AUTOPILOT" = "true" ]; then
       ACTION="$ACTION
-   AUTOPILOT MODE IS ACTIVE (this issue carries the 'autopilot' label) — it changes exactly TWO
-   things for you; everything else above is unchanged:
+   AUTOPILOT MODE IS ACTIVE (this issue carries the 'autopilot' label) — it changes only the
+   phases below; everything else above is unchanged:
    - PHASE 1: do NOT ask '@ffaerber ready to build?'. Present your SHORT plan AND end with a
      'DELEGATE: @<dev>' line in the SAME reply. Only skip delegating (and ask @ffaerber) if the task
-     is genuinely ambiguous or unsafe.
+     is genuinely ambiguous or unsafe."
+      if [ "$AUTOMERGE" = "true" ]; then
+        ACTION="$ACTION
    - PHASE 3: do NOT ask the human to merge. When @qa has approved, end your reply with EXACTLY
      'MERGE_PR' — the automation merges the PR and closes this issue. You are the ONLY agent that
      merges, and only here."
+      else
+        ACTION="$ACTION
+   - PHASE 3 is UNCHANGED: this issue also carries 'human-merge', so when @qa has approved, tell
+     @ffaerber the PR is ready to merge. Do NOT emit 'MERGE_PR'."
+      fi
     fi
   fi
   if [ "$NAME" = "qa" ]; then