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/baserow/files/config.json

@@ -0,0 +1,4 @@
+{
+  "password": "${secret:admin}",
+  "host": "${bound:route:name}"
+}

testdata/beside/mesh-catalog/modules/baserow/files/server.env

@@ -0,0 +1,7 @@
+DATABASE_HOST=${bound:postgres-database:at}
+DATABASE_PORT=${bound:postgres-database:port}
+DATABASE_NAME=${bound:postgres-database:as}
+DATABASE_USER=${bound:postgres-database:as}
+DATABASE_PASSWORD_FILE=/run/secrets/database
+DISABLE_EMBEDDED_PSQL=true
+BASEROW_PUBLIC_URL=https://${bound:route:name}

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

@@ -46,31 +46,54 @@
       }
     ]
   },
+  "config": {
+    "host": {
+      "type": "string",
+      "description": "The Host header the module's tools send to Baserow, a host name; the file's default is the name the module's route was given.",
+      "trusted": true,
+      "default": "${bound:route:name}"
+    },
+    "email": {
+      "type": "string",
+      "description": "The email address of the Baserow account the module's tools sign in as; unset, the code falls back to its environment.",
+      "trusted": true,
+      "default": ""
+    },
+    "url": {
+      "type": "string",
+      "description": "The address the module's tools reach Baserow at, as a URL; unset, the code falls back to its environment, else this machine's Baserow on port 80.",
+      "trusted": true,
+      "default": ""
+    }
+  },
   "resources": [
     {
       "id": "mesh-state",
       "type": "directory",
       "mode": "0700",
-      "place": "mesh"
+      "place": "mesh",
+      "unknown": "program"
     },
     {
       "id": "state",
       "type": "directory",
       "mode": "0700",
-      "place": "."
+      "place": ".",
+      "unknown": "program"
     },
     {
       "id": "data",
       "type": "directory",
       "mode": "0755",
-      "owner": "9999:9999"
+      "owner": "9999:9999",
+      "unknown": "program"
     },
     {
       "id": "server-env",
       "type": "file",
       "path": "${dir:state}/server.env",
       "mode": "0600",
-      "content": "DATABASE_HOST=${bound:postgres-database:at}\nDATABASE_PORT=${bound:postgres-database:port}\nDATABASE_NAME=${bound:postgres-database:as}\nDATABASE_USER=${bound:postgres-database:as}\nDATABASE_PASSWORD_FILE=/run/secrets/database\nDISABLE_EMBEDDED_PSQL=true\nBASEROW_PUBLIC_URL=https://${bound:route:name}\n"
+      "template": "files/server.env"
     },
     {
       "id": "net",
@@ -102,8 +125,10 @@
       "type": "file",
       "path": "${dir:mesh-state}/config.json",
       "mode": "0600",
-      "content": "{\n  \"password\": \"${secret:admin}\",\n  \"host\": \"${bound:route:name}\"\n}\n",
-      "merge": "json"
+      "template": "files/config.json",
+      "merge": "json",
+      "takes-config": ["host", "email", "url"],
+      "protected": ["password"]
     }
   ],
   "build": {
@@ -122,6 +147,11 @@
           "MESH_BASEROW_URL": "http://127.0.0.1:${port:80}",
           "MESH_BASEROW_CONFIG_FILE": "${dir:mesh-state}/config.json"
         }
+      },
+      {
+        "name": "files",
+        "kind": "archive",
+        "from": "files"
       }
     ]
   }