feat: let the operator purge a group's chat (MNP 6.1)

Signed chat_purge from the Chat settings deletes every stored message;
epoch keys and attachments stay. The ack is broadcast so open chat
panels empty.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

1 files changed, 424 insertions, 36 deletions

diff --git a/packages/meshbay-node/tests/golden/dispatch.json b/packages/meshbay-node/tests/golden/dispatch.json
index 44d030a..a39c57d 100644
--- a/packages/meshbay-node/tests/golden/dispatch.json
+++ b/packages/meshbay-node/tests/golden/dispatch.json
@@ -60,6 +60,14 @@
     "_admin_exec_chat_link_preview"
    ]
   },
+  "chat_purge": {
+   "audit": [],
+   "log": [],
+   "sent": [],
+   "spawned": [
+    "_admin_exec_chat_purge"
+   ]
+  },
   "dir_delete": {
    "audit": [],
    "log": [],
@@ -2012,7 +2020,7 @@
      "subject": "x",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -2335,7 +2343,7 @@
      "subject": "gggggggggggggggggggggggggggggggg",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -2354,7 +2362,7 @@
      "subject": "['x']",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -2373,7 +2381,7 @@
      "subject": "7",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -2392,7 +2400,7 @@
      "subject": "x",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -2662,7 +2670,7 @@
      "messages": [],
      "req_id": 4242,
      "type": "chat_hist_resp",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -2676,7 +2684,7 @@
      "messages": [],
      "req_id": 4242,
      "type": "chat_hist_resp",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -2690,7 +2698,7 @@
      "messages": [],
      "req_id": 4242,
      "type": "chat_hist_resp",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -2704,7 +2712,7 @@
      "messages": [],
      "req_id": 4242,
      "type": "chat_hist_resp",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -2718,7 +2726,7 @@
      "messages": [],
      "req_id": 4242,
      "type": "chat_hist_resp",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -2732,7 +2740,7 @@
      "messages": [],
      "req_id": 4242,
      "type": "chat_hist_resp",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -2746,7 +2754,7 @@
      "messages": [],
      "req_id": 4242,
      "type": "chat_hist_resp",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -2760,7 +2768,7 @@
      "messages": [],
      "req_id": 4242,
      "type": "chat_hist_resp",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -3817,6 +3825,386 @@
    ],
    "spawned": []
   },
+  "chat_purge | challenged | bare": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "Handshake required",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge | challenged | lists": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "Handshake required",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge | challenged | numbers": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "Handshake required",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge | challenged | strings": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "Handshake required",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge | fresh | bare": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "Handshake required",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge | fresh | lists": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "Handshake required",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge | fresh | numbers": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "Handshake required",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge | fresh | strings": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "Handshake required",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge | member | bare": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "No authorized key for this",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge | member | lists": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "No authorized key for this",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge | member | numbers": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "No authorized key for this",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge | member | strings": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "No authorized key for this",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge | operator | bare": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "group_id": "gggggggggggggggggggggggggggggggg",
+     "node_pk": "iojj3XQJ8ZX9UtstPLpdcspnCb8dlBIb83SIAbQPb1w=",
+     "nonce": "<volatile>",
+     "op": "chat_purge",
+     "op_id": "<volatile>",
+     "req_id": 4242,
+     "subject": "gggggggggggggggggggggggggggggggg",
+     "ts": "<volatile>",
+     "type": "admin_challenge",
+     "v": "6.1"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge | operator | lists": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "group_id": "gggggggggggggggggggggggggggggggg",
+     "node_pk": "iojj3XQJ8ZX9UtstPLpdcspnCb8dlBIb83SIAbQPb1w=",
+     "nonce": "<volatile>",
+     "op": "chat_purge",
+     "op_id": "<volatile>",
+     "req_id": 4242,
+     "subject": "gggggggggggggggggggggggggggggggg",
+     "ts": "<volatile>",
+     "type": "admin_challenge",
+     "v": "6.1"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge | operator | numbers": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "group_id": "gggggggggggggggggggggggggggggggg",
+     "node_pk": "iojj3XQJ8ZX9UtstPLpdcspnCb8dlBIb83SIAbQPb1w=",
+     "nonce": "<volatile>",
+     "op": "chat_purge",
+     "op_id": "<volatile>",
+     "req_id": 4242,
+     "subject": "gggggggggggggggggggggggggggggggg",
+     "ts": "<volatile>",
+     "type": "admin_challenge",
+     "v": "6.1"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge | operator | strings": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "group_id": "gggggggggggggggggggggggggggggggg",
+     "node_pk": "iojj3XQJ8ZX9UtstPLpdcspnCb8dlBIb83SIAbQPb1w=",
+     "nonce": "<volatile>",
+     "op": "chat_purge",
+     "op_id": "<volatile>",
+     "req_id": 4242,
+     "subject": "gggggggggggggggggggggggggggggggg",
+     "ts": "<volatile>",
+     "type": "admin_challenge",
+     "v": "6.1"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge_ack | challenged | bare": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "Handshake required",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge_ack | challenged | lists": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "Handshake required",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge_ack | challenged | numbers": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "Handshake required",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge_ack | challenged | strings": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "Handshake required",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge_ack | fresh | bare": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "Handshake required",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge_ack | fresh | lists": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "Handshake required",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge_ack | fresh | numbers": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "Handshake required",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge_ack | fresh | strings": {
+   "audit": [],
+   "log": [],
+   "sent": [
+    {
+     "detail": "Handshake required",
+     "req_id": 4242,
+     "type": "error"
+    }
+   ],
+   "spawned": []
+  },
+  "chat_purge_ack | member | bare": {
+   "audit": [],
+   "log": [
+    "WARNING Unknown MNP message type on DataChannel: %s"
+   ],
+   "sent": [],
+   "spawned": []
+  },
+  "chat_purge_ack | member | lists": {
+   "audit": [],
+   "log": [
+    "WARNING Unknown MNP message type on DataChannel: %s"
+   ],
+   "sent": [],
+   "spawned": []
+  },
+  "chat_purge_ack | member | numbers": {
+   "audit": [],
+   "log": [
+    "WARNING Unknown MNP message type on DataChannel: %s"
+   ],
+   "sent": [],
+   "spawned": []
+  },
+  "chat_purge_ack | member | strings": {
+   "audit": [],
+   "log": [
+    "WARNING Unknown MNP message type on DataChannel: %s"
+   ],
+   "sent": [],
+   "spawned": []
+  },
+  "chat_purge_ack | operator | bare": {
+   "audit": [],
+   "log": [
+    "WARNING Unknown MNP message type on DataChannel: %s"
+   ],
+   "sent": [],
+   "spawned": []
+  },
+  "chat_purge_ack | operator | lists": {
+   "audit": [],
+   "log": [
+    "WARNING Unknown MNP message type on DataChannel: %s"
+   ],
+   "sent": [],
+   "spawned": []
+  },
+  "chat_purge_ack | operator | numbers": {
+   "audit": [],
+   "log": [
+    "WARNING Unknown MNP message type on DataChannel: %s"
+   ],
+   "sent": [],
+   "spawned": []
+  },
+  "chat_purge_ack | operator | strings": {
+   "audit": [],
+   "log": [
+    "WARNING Unknown MNP message type on DataChannel: %s"
+   ],
+   "sent": [],
+   "spawned": []
+  },
   "client_diag | challenged | bare": {
    "audit": [],
    "log": [],
@@ -9771,7 +10159,7 @@
      "subject": "link:gggggggggggggggggggggggggggggggg",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -11870,7 +12258,7 @@
      "subject": "['x']",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -11889,7 +12277,7 @@
      "subject": "7",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -11908,7 +12296,7 @@
      "subject": "x",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -13009,7 +13397,7 @@
      "req_id": 4242,
      "token": null,
      "type": "pong",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -13024,7 +13412,7 @@
       "x"
      ],
      "type": "pong",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -13037,7 +13425,7 @@
      "req_id": 4242,
      "token": 7,
      "type": "pong",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -13050,7 +13438,7 @@
      "req_id": 4242,
      "token": "x",
      "type": "pong",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -13063,7 +13451,7 @@
      "req_id": 4242,
      "token": null,
      "type": "pong",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -13078,7 +13466,7 @@
       "x"
      ],
      "type": "pong",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -13091,7 +13479,7 @@
      "req_id": 4242,
      "token": 7,
      "type": "pong",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -13104,7 +13492,7 @@
      "req_id": 4242,
      "token": "x",
      "type": "pong",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -13439,7 +13827,7 @@
      "subject": "['x']",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -13458,7 +13846,7 @@
      "subject": "7",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -13477,7 +13865,7 @@
      "subject": "x",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -13812,7 +14200,7 @@
      "subject": "['x']",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -13831,7 +14219,7 @@
      "subject": "7",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -13850,7 +14238,7 @@
      "subject": "x",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -14185,7 +14573,7 @@
      "subject": "['x']",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -14204,7 +14592,7 @@
      "subject": "7",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -14223,7 +14611,7 @@
      "subject": "x",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -16850,7 +17238,7 @@
      "subject": "{\"language\":null,\"token\":null}",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []
@@ -16893,7 +17281,7 @@
      "subject": "{\"language\":\"x\",\"token\":\"sha256:2d711642b726b04401627ca9fbac32f5c8530fb1903cc4db02258717921a4881\"}",
      "ts": "<volatile>",
      "type": "admin_challenge",
-     "v": "6.0"
+     "v": "6.1"
     }
    ],
    "spawned": []