fix(host): let a peer's current GitHub login replace a stale one without a restart

.lane/memory/apps/host/src/gateway.ts/01M4YVZ6KGNQ7MFS1RP81MQCE0-a-hosted-channel-s-location.md

@@ -4,9 +4,9 @@ anchor: function handle
 created: 2026-10-15T04:08:49Z
 norm: '1'
 sig: e597b5fbc8e664ce
-body_hash: 3d892bdf2a5a0db7
-raw_hash: f681a895851ad4fb
-vouched: 2026-10-22T16:18:52Z
+body_hash: 41e3e91309de2927
+raw_hash: 79444a43e01e6586
+vouched: 2026-10-22T17:44:28Z
 lines: 266-519
 ---
 

.lane/memory/apps/host/src/gateway.ts/01M4Z2BCKRNHVMYEMC0KH3Q6BN-a-hosted-channel-must-be-rea.md

@@ -4,9 +4,9 @@ anchor: function handle
 created: 2026-10-15T06:00:20Z
 norm: '1'
 sig: e597b5fbc8e664ce
-body_hash: 3d892bdf2a5a0db7
-raw_hash: f681a895851ad4fb
-vouched: 2026-10-22T16:18:52Z
+body_hash: 41e3e91309de2927
+raw_hash: 79444a43e01e6586
+vouched: 2026-10-22T17:44:28Z
 lines: 281-561
 ---
 

.lane/memory/apps/host/src/gateway.ts/01M5AZZV2CRMNFXZKM0B3AWRVX-a-move-to-a-cloud-workspace.md

@@ -4,9 +4,9 @@ anchor: function handle
 created: 2026-10-19T21:09:57Z
 norm: '1'
 sig: e597b5fbc8e664ce
-body_hash: 3d892bdf2a5a0db7
-raw_hash: f681a895851ad4fb
-vouched: 2026-10-22T16:18:52Z
+body_hash: 41e3e91309de2927
+raw_hash: 79444a43e01e6586
+vouched: 2026-10-22T17:44:28Z
 lines: 384-700
 supersedes: 01M5APK9YCQH467YNMKAC8BT5B
 ---

.lane/memory/apps/host/src/gateway.ts/01M5D4BXMERGZ1EZ3EYAFM3YC4-worker-requests-worker-never.md

@@ -4,9 +4,9 @@ anchor: '@file'
 created: 2026-10-20T17:04:56Z
 norm: '1'
 sig: 1acdc0f6a0895ac5
-body_hash: 308268d80c20b68b
-raw_hash: 417f8cf07e0e37ad
-vouched: 2026-10-22T16:18:52Z
+body_hash: 0b20e056c7f04b14
+raw_hash: 2bff560cd8f039e6
+vouched: 2026-10-22T17:44:28Z
 lines: 1-1153
 ---
 

.lane/memory/apps/host/src/gateway.ts/01M5HYM54QCSF4ESXJSWZK588G-every-project-op-that-change.md

@@ -4,9 +4,9 @@ anchor: '@file'
 created: 2026-10-22T14:00:47Z
 norm: '1'
 sig: 1acdc0f6a0895ac5
-body_hash: 308268d80c20b68b
-raw_hash: 417f8cf07e0e37ad
-vouched: 2026-10-22T16:18:52Z
+body_hash: 0b20e056c7f04b14
+raw_hash: 2bff560cd8f039e6
+vouched: 2026-10-22T17:44:28Z
 lines: 1-1309
 ---
 

.lane/memory/apps/host/src/gateway.ts/01M5JBDJ3Q1B2CB27WSCJMMCP8-the-directory-s-hosts-github.md

@@ -0,0 +1,12 @@
+---
+id: 01M5JBDJ3Q1B2CB27WSCJMMCP8
+anchor: function people
+created: 2026-10-22T17:44:22Z
+norm: '1'
+sig: d4fabfe66743b1ed
+body_hash: d893a8d41c8d0aeb
+raw_hash: a0226e2068ee94b3
+lines: 315-322
+---
+
+the directory's hosts[].github is re-announced by each host every heartbeat, so it must override logins remembered from peers' hellos

.lane/memory/apps/host/src/peers.ts/01M5JBDJ536ASQ9VKEE9T4WW7T-a-hello-without-github-leave.md

@@ -0,0 +1,12 @@
+---
+id: 01M5JBDJ536ASQ9VKEE9T4WW7T
+anchor: function greet
+created: 2026-10-22T17:44:22Z
+norm: '1'
+sig: 583ffcbd3b791ed2
+body_hash: f003a7d2404a7483
+raw_hash: 18edf8ce741d1310
+lines: 76-86
+---
+
+a hello without github leaves the peer in unnamed, and discover re-asks it even with a directory chosen, until a login arrives

.lane/memory/apps/host/src/peers.ts/01M5JBDT9ZCB6X9ANFR2K7NJBE-a-peer-s-hello-can-arrive-be.md

@@ -0,0 +1,13 @@
+---
+id: 01M5JBDT9ZCB6X9ANFR2K7NJBE
+anchor: function discover
+created: 2026-10-22T17:44:31Z
+norm: '1'
+sig: ab69f97386d0db50
+body_hash: 687af47f626b9aa1
+raw_hash: ce225aafa3f68775
+lines: 37-74
+supersedes: 01M4YX4FKJR9W30M9Y5HVTKBW4
+---
+
+a peer's hello can arrive before its own gh lookup resolves and carry no github; peers never push a later login, so discover re-asks such peers every pass, even with a directory chosen

apps/host/src/gateway.ts

@@ -308,11 +308,13 @@ async function owners(own?: Listing[]): Promise<void> {
 	await lobbyProjects(own);
 }
 
-/** Fresher sources win: the directory, then reachable peers, then this host's own owner. */
+/**
+ * Fresher sources win: peers' hellos, then the directory, which each host re-announces itself to
+ * on every heartbeat while a hello is asked only on connect, then this host's own owner.
+ */
 function people(): People {
-	const known: People = {};
+	const known: People = { ...peers.people() };
 	for (const host of directory.read().hosts) if (host.github) known[host.login] = host.github;
-	Object.assign(known, peers.people());
 	Object.assign(known, demo.people());
 	const own = github.login(loginChanged);
 	if (own) known[catalog.user] = own;
@@ -721,23 +723,18 @@ async function handle(
 		case "team-peers":
 			return peers.teams();
 		case "team-roster": {
-			const gh = github.login(loginChanged);
 			const roster: Member[] = [
-				{
-					host: name,
-					login: catalog.user,
-					...(gh ? { github: gh } : {}),
-					online: true,
-					self: true,
-				},
+				{ host: name, login: catalog.user, online: true, self: true },
 				...peers.online(),
 			];
 			const seen = new Set(roster.map((member) => member.host));
-			for (const { name: host, login, github: owner } of directory.read().hosts) {
-				if (seen.has(host)) continue;
-				roster.push({ host, login, ...(owner ? { github: owner } : {}), online: false });
+			for (const { name: host, login } of directory.read().hosts) {
+				if (!seen.has(host)) roster.push({ host, login, online: false });
 			}
-			return roster;
+			const known = people();
+			return roster.map((member) =>
+				known[member.login] ? { ...member, github: known[member.login] } : member
+			);
 		}
 		case "team-ask": {
 			const team = await peers.ask(request.host);

apps/host/src/peers.ts

@@ -27,6 +27,8 @@ const remembered = new Map<string, Listing[]>();
 const stalled = new Map<string, number>();
 /** Peer owners' GitHub logins by Tailscale login, from their last hello, so remembered channels keep their owner's name and avatar. */
 const named: People = {};
+/** Peers whose last hello carried no GitHub login, asked again until one does. */
+const unnamed = new Set<string>();
 
 function emit() {
 	for (const listener of listeners) listener();
@@ -63,18 +65,21 @@ async function discover(signal: AbortSignal) {
 		});
 		hosts.set(name, host);
 	}
-	// A teammate can start a directory after this host first greeted them.
-	if (directory.isChosen()) return;
-	for (const { client, machine } of hosts.values()) {
-		if (client.status === "open") greet(client, machine);
+	// A teammate can start a directory after this host first greeted them, and a peer that answered
+	// before `gh` resolved has a login to give.
+	const chosen = directory.isChosen();
+	for (const [name, { client, machine }] of hosts) {
+		if (client.status === "open" && (!chosen || unnamed.has(name))) greet(client, machine);
 	}
 }
 
 function greet(client: GatewayClient, machine: Machine) {
 	client.request<Hello>({ op: "hello" }).then((hello) => {
 		if (hello.directory) void directory.adopt(hello.directory);
-		// A freshly started peer answers before `gh` has told it its owner's login.
-		if (!hello.github || named[machine.login] === hello.github) return;
+		// A freshly started peer answers before `gh` has told it its owner's login, which may have changed.
+		if (!hello.github) return void unnamed.add(machine.name);
+		unnamed.delete(machine.name);
+		if (named[machine.login] === hello.github) return;
 		named[machine.login] = hello.github;
 		emit();
 	}, () => {});
@@ -167,18 +172,11 @@ export async function teams(): Promise<TeamPeer[]> {
 	return found.filter((peer) => !!peer);
 }
 
-/** Hosts running Ace on the tailnet now. */
+/** Hosts running Ace on the tailnet now; the gateway names their owners from every source. */
 export function online(): Member[] {
-	return [...hosts.values()].flatMap(({ machine, client }) => {
-		if (client.status !== "open") return [];
-		const github = named[machine.login];
-		return [{
-			host: machine.name,
-			login: machine.login,
-			...(github ? { github } : {}),
-			online: true,
-		}];
-	});
+	return [...hosts.values()].flatMap(({ machine, client }) =>
+		client.status === "open" ? [{ host: machine.name, login: machine.login, online: true }] : []
+	);
 }
 
 /** Waits for the peer's owner to approve; see asks.ts. */