Capture mesh-catalog at feat/r4g (2246ccc4) with the templates its manifests name and its predefined.json, and lay the copy out as a repository's root

The catalogue's manifests moved their content into template files and fall back to predefined keys, so a copy of
module.json alone no longer passes the catalogue's own check; the bus's Dockerfile is gone from the catalogue.

testdata/beside/mesh-catalog/modules/zfs/module.json.captured

@@ -8,23 +8,46 @@
     "snapshot.taken",
     "scrub.requested"
   ],
-  "settings": {
-    "scrub-cadence": {
-      "kind": "preference",
-      "default": "weekly",
-      "why": "how often the pool named by scrub-pool is scrubbed, weekly or monthly (the first scrub-day of each month); weekly is what the distribution's timer did on the home server before the module, so taking it over moves nothing until the operator chooses"
+    "config": {
+      "scrub-pool": {
+        "type": "string",
+        "description": "The name of the ZFS pool the module scrubs; the operator's, with no default.",
+        "trusted": true,
+        "required": true
+      },
+      "scrub-cadence": {
+        "type": "string",
+        "description": "How often the pool named by scrub-pool is scrubbed: weekly, or monthly on the first scrub-day of each month. Weekly is what the distribution's timer did on the home server before the module, so taking it over moves nothing until the operator chooses.",
+        "enum": [
+          "weekly",
+          "monthly"
+        ],
+        "trusted": true,
+        "default": "weekly"
+      },
+      "scrub-day": {
+        "type": "string",
+        "description": "The weekday the scrub starts, Mon to Sun; for a monthly scrub, the first such day of the month. Checked by the scheduled run, which refuses any other value and runs nothing; Monday is when the distribution's weekly timer fired.",
+        "enum": [
+          "Mon",
+          "Tue",
+          "Wed",
+          "Thu",
+          "Fri",
+          "Sat",
+          "Sun"
+        ],
+        "trusted": true,
+        "default": "Mon"
+      },
+      "scrub-time": {
+        "type": "string",
+        "description": "The time the scrub starts, HH:MM from 00:00 to 23:59 in the machine's time zone; the scheduled run checks it every quarter of an hour, so the scrub starts within 15 minutes of it. Midnight is when the distribution's weekly timer fired.",
+        "pattern": "([01][0-9]|2[0-3]):[0-5][0-9]",
+        "trusted": true,
+        "default": "00:00"
+      }
     },
-    "scrub-day": {
-      "kind": "preference",
-      "default": "Mon",
-      "why": "the weekday the scrub starts, Mon to Sun: for a monthly scrub, the first such day of the month. Checked by the scheduled run, which refuses any other value and runs nothing; Monday is when the distribution's weekly timer fired"
-    },
-    "scrub-time": {
-      "kind": "preference",
-      "default": "00:00",
-      "why": "the time the scrub starts, HH:MM from 00:00 to 23:59 in the machine's time zone; the scheduled run checks it every quarter of an hour, so the scrub starts within 15 minutes of it. Midnight is when the distribution's weekly timer fired"
-    }
-  },
   "tools": [
     "zfs_datasets",
     "zfs_snapshots",
@@ -119,13 +142,15 @@
       "type": "directory",
       "path": "/var/lib/zfs-tools",
       "mode": "0755",
-      "owner": "${machine:account}"
+      "owner": "${machine:account}",
+      "unknown": "program"
     },
     {
       "id": "cursor-dir",
       "type": "directory",
       "path": "/run/zfs-events",
-      "mode": "0700"
+      "mode": "0700",
+      "unknown": "program"
     },
     {
       "id": "events",
@@ -144,20 +169,22 @@
       "id": "config-dir",
       "type": "directory",
       "path": "/etc/zfs-tools",
-      "mode": "0755"
+      "mode": "0755",
+      "unknown": "program"
     },
     {
       "id": "scrub-config",
       "type": "file",
       "path": "/etc/zfs-tools/scrub.conf",
       "mode": "0644",
-      "content": "# Written by the mesh (module zfs) from this machine's assignment. Replaced on every push; change the\n# settings scrub-pool, scrub-cadence, scrub-day and scrub-time, never this file. The module's tools read it.\npool=${setting:scrub-pool}\ncadence=${setting:scrub-cadence}\nday=${setting:scrub-day}\ntime=${setting:scrub-time}\n"
+      "template": "files/scrub.conf"
     },
     {
       "id": "scrub-state-dir",
       "type": "directory",
       "path": "/var/lib/zfs-scrub",
-      "mode": "0700"
+      "mode": "0700",
+      "unknown": "program"
     },
     {
       "id": "scrub-run",
@@ -173,14 +200,14 @@
     {
       "id": "distribution-weekly",
       "type": "service",
-      "unit": "zfs-scrub-weekly@${setting:scrub-pool}.timer",
+      "unit": "zfs-scrub-weekly@${config:scrub-pool}.timer",
       "state": "stopped",
       "boot": "disabled"
     },
     {
       "id": "distribution-monthly",
       "type": "service",
-      "unit": "zfs-scrub-monthly@${setting:scrub-pool}.timer",
+      "unit": "zfs-scrub-monthly@${config:scrub-pool}.timer",
       "state": "stopped",
       "boot": "disabled"
     }
@@ -197,6 +224,11 @@
         "loads": [
           "zfs-tools"
         ]
+      },
+      {
+        "name": "files",
+        "kind": "archive",
+        "from": "files"
       }
     ]
   }