#715 Drop branch-cleanup advice and deletion-status fields from merge output

packages/agents/content/skills/merge-gh-pr/SKILL.md

@@ -119,14 +119,7 @@ When `deletion_strategy == 'remote'`, resolve the head-repo coordinates and call
 gh api -X DELETE "repos/{headRepositoryOwner.login}/{headRepository.name}/git/refs/heads/{headRefName}"
 ```
 
-Capture stdout, stderr, and the exit code.
-
-- **On success:** set `remote_deletion_status = "deleted"`.
-- **On failure:** print `warning: Failed to delete remote branch '{headRefName}': {stderr}` to stderr, but **do not** exit non-zero — the merge itself succeeded, and re-deleting a leftover branch is trivial. Set `remote_deletion_status = "deletion-failed: {first line of stderr}"`.
-
-For `deletion_strategy in {both, none}`, set `remote_deletion_status` directly from the strategy without making an API call: `both` → `"deleted"` (the prior `gh pr merge --delete-branch` handled it; if `gh pr merge` succeeded, the remote ref is gone); `none` → `"preserved"`.
-
-Symmetrically, set `local_deletion_status`: `both` → `"deleted"`; `remote` or `none` → `"preserved"`.
+If the call exits non-zero, print `warning: Failed to delete remote branch '{headRefName}': {stderr}` to stderr but **do not** exit non-zero. The merge itself succeeded, and re-deleting a leftover branch is trivial.
 
 ### 7. Capture merge result
 
@@ -165,28 +158,21 @@ PR: {url}
 Merged at: {mergedAt}
 Merge commit: {mergeCommit.oid}
 Strategy: {strategy}
-Branch: {headRefName} (local: {local_deletion_status}, remote: {remote_deletion_status})
+Branch: {headRefName}
 
 ## Body
 
 {body as submitted}
 ```
 
-The branch line has four canonical renderings, depending on `deletion_strategy` and the outcome of the post-merge API call:
-
-- `Branch: my-branch (local: deleted, remote: deleted)` — `both`, success
-- `Branch: my-branch (local: preserved, remote: deleted)` — `remote`, success
-- `Branch: my-branch (local: preserved, remote: deletion-failed: {reason})` — `remote`, API call failed
-- `Branch: my-branch (local: preserved, remote: preserved)` — `none`
-
 ## Completion
 
 ```
 Merged: {url}
 Commit: {mergeCommit.oid}
 Strategy: {strategy}
-Branch: {headRefName} (local: {local_deletion_status}, remote: {remote_deletion_status})
+Branch: {headRefName}
 Artifact saved: {artifact path}
 ```
 
-Nothing else.
+Local state is intentionally left untouched; removing the merged branch is left to the user. Do not append local-branch cleanup steps or advice. Do not report this state to the user.