fix: add cursor agent support

internal/agent/agent.go

@@ -106,6 +106,7 @@ func SetAnthropicAPIKey(key string) {
 // aliases maps short names to full agent names
 var aliases = map[string]string{
 	"claude": "claude-code",
+	"agent":  "cursor",
 }
 
 // resolveAlias returns the canonical agent name, resolving aliases

internal/agent/agent_test.go

@@ -31,6 +31,33 @@ func TestAgentRegistry(t *testing.T) {
 	}
 }
 
+func TestCanonicalNameAliases(t *testing.T) {
+	tests := []struct {
+		input string
+		want  string
+	}{
+		{input: "claude", want: "claude-code"},
+		{input: "agent", want: "cursor"},
+		{input: "cursor", want: "cursor"},
+	}
+
+	for _, tt := range tests {
+		if got := CanonicalName(tt.input); got != tt.want {
+			t.Errorf("CanonicalName(%q) = %q, want %q", tt.input, got, tt.want)
+		}
+	}
+}
+
+func TestGetSupportsAgentAlias(t *testing.T) {
+	a, err := Get("agent")
+	if err != nil {
+		t.Fatalf("Get(agent) returned error: %v", err)
+	}
+	if a.Name() != "cursor" {
+		t.Fatalf("Get(agent) resolved to %q, want %q", a.Name(), "cursor")
+	}
+}
+
 func TestAvailableAgents(t *testing.T) {
 	agents := Available()
 	if len(agents) < len(expectedAgents) {

internal/daemon/server_jobs_test.go

@@ -908,6 +908,7 @@ func TestHandleEnqueueAgentAvailability(t *testing.T) {
 	tests := []struct {
 		name          string
 		requestAgent  string
+		defaultAgent  string
 		mockBinaries  []string // binary names to place in PATH
 		expectedAgent string   // expected agent stored in job
 		expectedCode  int      // expected HTTP status code
@@ -933,6 +934,21 @@ func TestHandleEnqueueAgentAvailability(t *testing.T) {
 			expectedAgent: "claude-code",
 			expectedCode:  http.StatusCreated,
 		},
+		{
+			name:          "explicit agent alias resolves to cursor",
+			requestAgent:  "agent",
+			mockBinaries:  []string{"agent"},
+			expectedAgent: "cursor",
+			expectedCode:  http.StatusCreated,
+		},
+		{
+			name:          "default agent alias resolves to cursor",
+			requestAgent:  "",
+			defaultAgent:  "agent",
+			mockBinaries:  []string{"agent"},
+			expectedAgent: "cursor",
+			expectedCode:  http.StatusCreated,
+		},
 		{
 			name:          "explicit codex kept when available",
 			requestAgent:  "codex",
@@ -959,6 +975,9 @@ func TestHandleEnqueueAgentAvailability(t *testing.T) {
 		t.Run(tt.name, func(t *testing.T) {
 			// Each subtest gets its own server/DB to avoid SHA dedup conflicts
 			server, _, _ := newTestServer(t)
+			if tt.defaultAgent != "" {
+				server.configWatcher.Config().DefaultAgent = tt.defaultAgent
+			}
 
 			// Isolate PATH: only mock binaries + git (no real agent CLIs)
 			origPath := os.Getenv("PATH")