fix(gateway): advertise bonjour hostname

docs/bonjour.md

@@ -49,6 +49,15 @@ If browsing shows instances but resolving fails, you’re usually hitting a LAN
 - **Bonjour doesn’t cross networks**: London/Vienna style setups require Tailnet (MagicDNS/IP) or SSH.
 - **Multicast blocked**: some Wi‑Fi networks (enterprise/hotels) disable mDNS; expect “no results”.
 - **Sleep / interface churn**: macOS may temporarily drop mDNS results when switching networks; retry.
+- **Browse works but resolve fails (iOS “NoSuchRecord”)**: make sure the advertiser publishes a valid SRV target hostname.
+  - Implementation detail: `@homebridge/ciao` defaults `hostname` to the *service instance name* when `hostname` is omitted. If your instance name contains spaces/parentheses, some resolvers can fail to resolve the implied A/AAAA record.
+  - Fix: set an explicit DNS-safe `hostname` (single label; no `.local`) in `src/infra/bonjour.ts`.
+
+## Escaped instance names (`\\032`)
+Bonjour/DNS-SD often escapes bytes in service instance names as decimal `\\DDD` sequences (e.g. spaces become `\\032`).
+
+- This is normal at the protocol level.
+- UIs should decode for display (iOS uses `BonjourEscapes.decode` in `apps/shared/ClawdisKit`).
 
 ## Disabling / configuration
 

src/infra/bonjour.test.ts

@@ -20,6 +20,8 @@ const { startGatewayBonjourAdvertiser } = await import("./bonjour.js");
 describe("gateway bonjour advertiser", () => {
   type ServiceCall = {
     name?: unknown;
+    hostname?: unknown;
+    domain?: unknown;
     txt?: unknown;
   };
 
@@ -66,6 +68,8 @@ describe("gateway bonjour advertiser", () => {
     >;
     expect(masterCall?.[0]?.type).toBe("clawdis-master");
     expect(masterCall?.[0]?.port).toBe(2222);
+    expect(masterCall?.[0]?.domain).toBe("local");
+    expect(masterCall?.[0]?.hostname).toBe("test-host");
     expect((masterCall?.[0]?.txt as Record<string, string>)?.lanHost).toBe(
       "test-host.local",
     );
@@ -75,6 +79,8 @@ describe("gateway bonjour advertiser", () => {
 
     expect(bridgeCall?.[0]?.type).toBe("clawdis-bridge");
     expect(bridgeCall?.[0]?.port).toBe(18790);
+    expect(bridgeCall?.[0]?.domain).toBe("local");
+    expect(bridgeCall?.[0]?.hostname).toBe("test-host");
     expect((bridgeCall?.[0]?.txt as Record<string, string>)?.bridgePort).toBe(
       "18790",
     );
@@ -109,6 +115,8 @@ describe("gateway bonjour advertiser", () => {
 
     const [masterCall] = createService.mock.calls as Array<[ServiceCall]>;
     expect(masterCall?.[0]?.name).toBe("Mac (Clawdis)");
+    expect(masterCall?.[0]?.domain).toBe("local");
+    expect(masterCall?.[0]?.hostname).toBe("Mac");
     expect((masterCall?.[0]?.txt as Record<string, string>)?.lanHost).toBe(
       "Mac.local",
     );

src/infra/bonjour.ts

@@ -74,6 +74,8 @@ export async function startGatewayBonjourAdvertiser(
     type: "clawdis-master",
     protocol: Protocol.TCP,
     port: opts.sshPort ?? 22,
+    domain: "local",
+    hostname,
     txt: {
       ...txtBase,
       sshPort: String(opts.sshPort ?? 22),
@@ -88,6 +90,8 @@ export async function startGatewayBonjourAdvertiser(
       type: "clawdis-bridge",
       protocol: Protocol.TCP,
       port: opts.bridgePort,
+      domain: "local",
+      hostname,
       txt: {
         ...txtBase,
         transport: "bridge",