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/mesh-mail-reader/files/callers.json

@@ -0,0 +1,3 @@
+{
+  "callers": ["mesh-mail-web"]
+}

testdata/beside/mesh-catalog/modules/mesh-mail-reader/files/database-url

@@ -0,0 +1 @@
+postgresql://${bound:postgres-database:as}:${secret:postgres-database}@${bound:postgres-database:at}:${bound:postgres-database:port}/${bound:postgres-database:as}

testdata/beside/mesh-catalog/modules/mesh-mail-reader/module.json.captured

@@ -0,0 +1,141 @@
+{
+  "module": "mesh-mail-reader",
+  "version": "1",
+  "runs-as": "mesh-mail-reader",
+  "claims": [
+    {
+      "name": "mail-reading",
+      "scope": "mesh",
+      "serves": ["entries", "groups", "correct", "lessons", "undo", "status"]
+    }
+  ],
+  "consumes": [
+    "mesh-mail.mail.*.message.added"
+  ],
+  "invokes": [
+    "seat:mail-store.read",
+    "seat:mail-store.accounts",
+    "claude-code.claude_code_judge",
+    "claude-code.claude_code_judged",
+    "messenger.messenger_check",
+    "seat:operator-channel.tell"
+  ],
+  "requires": ["postgres-database"],
+  "contributes": {
+    "postgres-database": {
+      "name": "mail-reader"
+    }
+  },
+  "binds": {
+    "postgres-database": "${dir:state}/database.json"
+  },
+  "secrets": {
+    "postgres-database": "${dir:state}/database.secret"
+  },
+  "config": {
+    "callers": {
+      "type": "list",
+      "description": "Who may call one of mail-reading's six verbs (entries, groups, correct, lessons, undo, status): a module's name (on every machine), <machine>.<module>, or person.<name> (novox/hq ADR 0459 §2). mesh-mail-web alone by default.",
+      "trusted": true,
+      "default": ["mesh-mail-web"]
+    }
+  },
+  "tools": [
+    "mail-reading.entries",
+    "mail-reading.groups",
+    "mail-reading.correct",
+    "mail-reading.lessons",
+    "mail-reading.undo",
+    "mail-reading.status",
+    "mail_reader_health"
+  ],
+  "runtime-health": {
+    "kind": "tool",
+    "tool": "mail_reader_health",
+    "interval": "60s",
+    "timeout": "10s",
+    "looks": 2,
+    "grace": "60s"
+  },
+  "own-secrets": {
+    "broker": "${dir:state}/broker"
+  },
+  "secrets-owner": "mesh-mail-reader",
+  "resources": [
+    {
+      "id": "account",
+      "type": "user",
+      "name": "mesh-mail-reader",
+      "shell": "/usr/bin/nologin",
+      "home": "/var/lib/mesh-mail-reader"
+    },
+    {
+      "id": "state",
+      "type": "directory",
+      "mode": "0700",
+      "owner": "mesh-mail-reader",
+      "place": ".",
+      "unknown": "program"
+    },
+    {
+      "id": "callers",
+      "trusted": true,
+      "type": "file",
+      "path": "${dir:state}/callers.json",
+      "mode": "0600",
+      "owner": "mesh-mail-reader",
+      "merge": "json",
+      "template": "files/callers.json",
+      "takes-config": ["callers"]
+    },
+    {
+      "id": "database-url",
+      "type": "file",
+      "path": "${dir:state}/database.url",
+      "mode": "0600",
+      "owner": "mesh-mail-reader",
+      "template": "files/database-url"
+    },
+    {
+      "id": "prepare",
+      "type": "process",
+      "name": "mesh-mail-reader-prepare",
+      "artifact": "tools",
+      "run": [
+        "./mesh-mail-reader",
+        "prepare"
+      ],
+      "run-once": true,
+      "env": {
+        "DATABASE_URL_FILE": "${dir:state}/database.url"
+      },
+      "restart-on": [
+        "database-url"
+      ]
+    }
+  ],
+  "build": {
+    "artifacts": [
+      {
+        "name": "tools",
+        "kind": "bundle",
+        "language": "go",
+        "system": "arch",
+        "from": "cmd/mesh-mail-reader",
+        "binary": "mesh-mail-reader",
+        "loads": [
+          "mesh-mail-reader"
+        ],
+        "env": {
+          "DATABASE_URL_FILE": "${dir:state}/database.url",
+          "MESH_MAIL_READER_CALLERS": "${dir:state}/callers.json"
+        }
+      },
+      {
+        "name": "files",
+        "kind": "archive",
+        "from": "files"
+      }
+    ]
+  }
+}