feat: add reconciliation workflow MCP tools for already-landed PRs (Closes #301)

Expose read-only assess/scan tools and capability planning so already-landed
open PRs can be reconciled without review or merge. Register the
gitea-reconcile-landed-pr skill and workflow-source verification.

tests/test_llm_workflow_split.py

@@ -118,6 +118,16 @@ def test_start_issue_template_references_work_issue_workflow():
     assert "workflows/work-issue.md" in text
 
 
+def test_reconcile_skill_registered_in_mcp_server():
+    from mcp_server import _PROJECT_SKILLS
+
+    assert "gitea-reconcile-landed-pr" in _PROJECT_SKILLS
+    steps = _PROJECT_SKILLS["gitea-reconcile-landed-pr"]["steps"]
+    joined = " ".join(steps).lower()
+    assert "gitea_scan_already_landed_open_prs" in joined
+    assert "gitea_assess_already_landed_reconciliation" in joined
+
+
 def test_reviewer_fallback_verifier_exported():
     from review_proofs import assess_reviewer_fallback_report