Answer what the mesh's checks said of a pull request, as mesh-delivery's checks verb (hq ADR 0239)

Reading a pull request's mesh/merge-gate and mesh/repo-check meant scraping the controller's journal:
the forge clips each status to 140 characters and nothing returned the verdict whole. mesh-delivery
already keeps the verdict; it now keeps the machine that ran it, the layers' modules and the report,
and its checks verb joins that to the forge's statuses, read through a new gitea_commit_statuses tool
that also says whether the base's protection lets the commit merge.

after: novox/mesh-controller

modules/mesh-delivery/module.json

@@ -11,6 +11,7 @@
         "show",
         "groups",
         "what-if",
+        "checks",
         "table",
         "stalled",
         "recheck",
@@ -40,7 +41,8 @@
     "seat:mesh-controller.delivery-walks",
     "gitea.gitea_note_append",
     "gitea.gitea_delivery_view",
-    "gitea.gitea_commit_status"
+    "gitea.gitea_commit_status",
+    "gitea.gitea_commit_statuses"
   ],
   "state": [
     "deliveries",