mesh-delivery-gate and gitea: a setting check-gates-merge; false asks a reviewed pull request's Approve and merges it without waiting for mesh/check

The operator, 2026-10-25 22:56: "run the check locally only, but not as a gate, it loses us too much time". Tonight each
merge ask waited 3-7 minutes for mesh/check, and every merge into main refused the next approved merge for a check judged
on the trunk before (mesh-delivery#52). Both settings default to true, so nothing changes until the operator sets them.
False: the gate makes a reviewed pull request ready and asks its Approve with no verdict, a trunk's move puts nothing out
of date, a verdict is kept and shown, and a group still merges in one pass; the merge tool merges a head the Approve
names whatever its mesh/check says. delivery_status and show say the mode.

modules/mesh-delivery-gate/module.json

@@ -86,6 +86,12 @@
       "maximum": 10080,
       "trusted": false,
       "default": 120
+    },
+    "check-gates-merge": {
+      "type": "boolean",
+      "description": "Whether mesh/check gates the merge. True (the default): the operator's Approve is asked, and a merge handed, only on a passing verdict judged against the trunk's head, and a trunk's move puts a verdict out of date (ADR 0447, ADR 0505 §4). False (the operator, 2026-10-25 22:56: \"run the check locally only, but not as a gate, it loses us too much time\"; developers run the unit and integration levels locally before a pull request): a pull request reviewed at its head is ready and its Approve asked at once, with no verdict waited on; no merge is refused for a check judged on an older trunk; a verdict that comes is shown on the pull request and the delivery, never waited on; a group still merges all its members in one pass. Set it false together with the gitea module's check-gates-merge, which lets its merge tool merge an approved head without a passing mesh/check.",
+      "trusted": false,
+      "default": true
     }
   },
   "resources": [
@@ -103,7 +109,8 @@
       "mode": "0600",
       "takes-config": [
         "refusal-stall-floor-minutes",
-        "author-new-head-minutes"
+        "author-new-head-minutes",
+        "check-gates-merge"
       ],
       "merge": "json",
       "template": "files/settings.json"