feat: invitation links no longer bound to an e-mail addressHEADmain

A link is redeemable by whoever opens it first, so it can be sent by any
messaging app. The address is optional (mail + label only); a link lives
7 days, fixed. Adds a Share button; see MESHBAY_DESIGN.md §3.4.

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

1 files changed, 8 insertions, 9 deletions

diff --git a/packages/meshbay-node/src/meshbay_node/ops/members.py b/packages/meshbay-node/src/meshbay_node/ops/members.py
index 2fd3899..b5da9c0 100644
--- a/packages/meshbay-node/src/meshbay_node/ops/members.py
+++ b/packages/meshbay-node/src/meshbay_node/ops/members.py
@@ -159,15 +159,13 @@ async def create_link_invite(state: dict, group_id: str, *,
 
     Nothing is registered on the hub here, unlike `create_invite`: there is no
     account to register yet. The hub half is a ticket the inviter's client asks
-    the hub for, bound to the invitee's address (docs/MESHBAY_DESIGN.md §7.3).
+    the hub for, redeemable by the first account that opens the link
+    (docs/MESHBAY_DESIGN.md §7.3). Seven days, whatever `invite_ttl_hours` says.
     """
     roster = _roster(state)
     _group_ctx(state, group_id)
-    config = state.get("config")
-    ttl = (config.node.invite_ttl_hours if config else 168) * 3600
     try:
-        code, invite_id, expires = await roster.create_link_invite(
-            group_id, created_by, ttl=ttl)
+        code, invite_id, expires = await roster.create_link_invite(group_id, created_by)
     except LinkInviteLimit as e:
         raise OpError(str(e), status=429) from e
     log.info("Invitation link issued: group=%s invite=%s", group_id[:8], invite_id[:8])
@@ -199,11 +197,12 @@ def _invite_url(hub_url: str, group_id: str, ticket: str, node_pk_b64: str, code
     return f"{origin}/#/invite?v=1&g={group_id}&t={ticket}&n={n}&c={code}"
 
 
-async def create_link_invitation(state: dict, group_id: str, email: str, *,
+async def create_link_invitation(state: dict, group_id: str, email: str = "", *,
                                  created_by: str = "local-cli") -> dict:
     """
     A whole invitation link, from the operator's own machine: the node's code,
-    then the hub's ticket bound to `email`, then the link.
+    then the hub's ticket, then the link. `email` is optional and only labels
+    the link in the owner's list.
 
     In that order because the ticket names the code's handle. A ticket the hub
     refuses takes the code back with it — a code nobody can reach the node with
@@ -211,8 +210,8 @@ async def create_link_invitation(state: dict, group_id: str, email: str, *,
     the operator sends the link.
     """
     email = (email or "").strip()
-    if "@" not in email:
-        raise OpError("An invitation link is bound to an e-mail address", status=422)
+    if email and "@" not in email:
+        raise OpError("Not an e-mail address", status=422)
     hub = _hub(state)
     sk_node = state.get("sk_node")
     if sk_node is None: