fix: injectable tunnel log label, honest truncate budget comment

packages/core/test/unit/net/tunnel.test.ts

@@ -248,11 +248,34 @@ describe('openTunnel', () => {
             created.push(server)
             return server
         })
+        const errSpy = vi.spyOn(console, 'error').mockImplementation(() => {})
         const tunnel = await openTunnel(sshConfig({ password: 'pw' }), 'db-host', 5432)
         // A listener error after listen() resolved must not be swallowed: it
         // marks the tunnel closed so the manager can rebuild it.
         created[0].emit('error', new Error('EADDRNOTAVAIL'))
         expect(tunnel.isClosed()).toBe(true)
+        // Default log label brands the diagnostic with 'ssh-tunnel:'.
+        expect(errSpy).toHaveBeenCalledWith('ssh-tunnel: tunnel listener error: EADDRNOTAVAIL')
+        errSpy.mockRestore()
+        spy.mockRestore()
+        await tunnel.close()
+    })
+
+    it('uses a custom logLabel prefix on diagnostics', async () => {
+        const created: net.Server[] = []
+        const realCreateServer = net.createServer.bind(net)
+        const spy = vi.spyOn(net, 'createServer').mockImplementation((handler) => {
+            const server = realCreateServer(handler as (socket: net.Socket) => void)
+            created.push(server)
+            return server
+        })
+        const errSpy = vi.spyOn(console, 'error').mockImplementation(() => {})
+        const tunnel = await openTunnel(sshConfig({ password: 'pw' }), 'db-host', 5432, 'dbmole')
+        created[0].emit('error', new Error('EADDRNOTAVAIL'))
+        expect(tunnel.isClosed()).toBe(true)
+        // The injected label replaces the default prefix token.
+        expect(errSpy).toHaveBeenCalledWith('dbmole: tunnel listener error: EADDRNOTAVAIL')
+        errSpy.mockRestore()
         spy.mockRestore()
         await tunnel.close()
     })