fix(mac): add tailnet discovery fallback and debug CLI

apps/macos/Tests/ClawdbotIPCTests/GatewayDiscoveryModelTests.swift

@@ -1,5 +1,5 @@
+import ClawdbotDiscovery
 import Testing
-@testable import Clawdbot
 
 @Suite
 @MainActor

apps/macos/Tests/ClawdbotIPCTests/MasterDiscoveryMenuSmokeTests.swift

@@ -1,3 +1,4 @@
+import ClawdbotDiscovery
 import SwiftUI
 import Testing
 @testable import Clawdbot
@@ -6,7 +7,7 @@ import Testing
 @MainActor
 struct MasterDiscoveryMenuSmokeTests {
     @Test func inlineListBuildsBodyWhenEmpty() {
-        let discovery = GatewayDiscoveryModel()
+        let discovery = GatewayDiscoveryModel(localDisplayName: InstanceIdentity.displayName)
         discovery.statusText = "Searching…"
         discovery.gateways = []
 
@@ -15,7 +16,7 @@ struct MasterDiscoveryMenuSmokeTests {
     }
 
     @Test func inlineListBuildsBodyWithMasterAndSelection() {
-        let discovery = GatewayDiscoveryModel()
+        let discovery = GatewayDiscoveryModel(localDisplayName: InstanceIdentity.displayName)
         discovery.statusText = "Found 1"
         discovery.gateways = [
             GatewayDiscoveryModel.DiscoveredGateway(
@@ -23,6 +24,8 @@ struct MasterDiscoveryMenuSmokeTests {
                 lanHost: "office.local",
                 tailnetDns: "office.tailnet-123.ts.net",
                 sshPort: 2222,
+                gatewayPort: nil,
+                cliPath: nil,
                 stableID: "office",
                 debugID: "office",
                 isLocal: false),
@@ -34,7 +37,7 @@ struct MasterDiscoveryMenuSmokeTests {
     }
 
     @Test func menuBuildsBodyWithMasters() {
-        let discovery = GatewayDiscoveryModel()
+        let discovery = GatewayDiscoveryModel(localDisplayName: InstanceIdentity.displayName)
         discovery.statusText = "Found 2"
         discovery.gateways = [
             GatewayDiscoveryModel.DiscoveredGateway(
@@ -42,6 +45,8 @@ struct MasterDiscoveryMenuSmokeTests {
                 lanHost: "a.local",
                 tailnetDns: nil,
                 sshPort: 22,
+                gatewayPort: nil,
+                cliPath: nil,
                 stableID: "a",
                 debugID: "a",
                 isLocal: false),
@@ -50,6 +55,8 @@ struct MasterDiscoveryMenuSmokeTests {
                 lanHost: nil,
                 tailnetDns: "b.ts.net",
                 sshPort: 22,
+                gatewayPort: nil,
+                cliPath: nil,
                 stableID: "b",
                 debugID: "b",
                 isLocal: false),

apps/macos/Tests/ClawdbotIPCTests/OnboardingViewSmokeTests.swift

@@ -1,3 +1,4 @@
+import ClawdbotDiscovery
 import SwiftUI
 import Testing
 @testable import Clawdbot
@@ -10,7 +11,7 @@ struct OnboardingViewSmokeTests {
         let view = OnboardingView(
             state: state,
             permissionMonitor: PermissionMonitor.shared,
-            discoveryModel: GatewayDiscoveryModel())
+            discoveryModel: GatewayDiscoveryModel(localDisplayName: InstanceIdentity.displayName))
         _ = view.body
     }
 

apps/macos/Tests/ClawdbotIPCTests/WideAreaGatewayDiscoveryTests.swift

@@ -0,0 +1,49 @@
+import Testing
+@testable import ClawdbotDiscovery
+
+@Suite
+struct WideAreaGatewayDiscoveryTests {
+    @Test func discoversBeaconFromTailnetDnsSdFallback() {
+        let statusJson = """
+        {
+          "Self": { "TailscaleIPs": ["100.69.232.64"] },
+          "Peer": {
+            "peer-1": { "TailscaleIPs": ["100.123.224.76"] }
+          }
+        }
+        """
+
+        let context = WideAreaGatewayDiscovery.DiscoveryContext(
+            tailscaleStatus: { statusJson },
+            dig: { args, _ in
+                let recordType = args.last ?? ""
+                let nameserver = args.first(where: { $0.hasPrefix("@") }) ?? ""
+                if recordType == "PTR" {
+                    if nameserver == "@100.123.224.76" {
+                        return "steipetacstudio-bridge._clawdbot-bridge._tcp.clawdbot.internal.\n"
+                    }
+                    return ""
+                }
+                if recordType == "SRV" {
+                    return "0 0 18790 steipetacstudio.clawdbot.internal."
+                }
+                if recordType == "TXT" {
+                    return "\"displayName=Peter\\226\\128\\153s Mac Studio (Clawdbot)\" \"transport=bridge\" \"bridgePort=18790\" \"gatewayPort=18789\" \"tailnetDns=peters-mac-studio-1.sheep-coho.ts.net\" \"cliPath=/Users/steipete/clawdbot/src/entry.ts\""
+                }
+                return ""
+            })
+
+        let beacons = WideAreaGatewayDiscovery.discover(
+            timeoutSeconds: 2.0,
+            context: context)
+
+        #expect(beacons.count == 1)
+        let beacon = beacons[0]
+        let expectedDisplay = "Peter\u{2019}s Mac Studio (Clawdbot)"
+        #expect(beacon.displayName == expectedDisplay)
+        #expect(beacon.bridgePort == 18790)
+        #expect(beacon.gatewayPort == 18789)
+        #expect(beacon.tailnetDns == "peters-mac-studio-1.sheep-coho.ts.net")
+        #expect(beacon.cliPath == "/Users/steipete/clawdbot/src/entry.ts")
+    }
+}