fix(httpapi): redact agent_secret from speaker list responses

Секрет agent больше не отдаётся viewer/editor в GET/list speakers;
остаётся только при создании спикера.

Co-authored-by: Cursor <[email protected]>

internal/httpapi/speakers.go

@@ -39,7 +39,10 @@ func speakerJSONFromStore(st store.Backend, sp *store.Speaker) map[string]any {
 	if strings.TrimSpace(sp.MetaJSON) != "" && sp.MetaJSON != "{}" {
 		var raw map[string]any
 		if json.Unmarshal([]byte(sp.MetaJSON), &raw) == nil {
-			m["meta_json"] = raw
+			delete(raw, "agent_secret")
+			if len(raw) > 0 {
+				m["meta_json"] = raw
+			}
 		}
 	}
 	if meta.AgentDomain != "" {

internal/httpapi/speakers_redact_test.go

@@ -0,0 +1,62 @@
+package httpapi
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+)
+
+func TestGetSpeaker_redactsAgentSecret(t *testing.T) {
+	srv, err := New(Options{InsecureDev: true, SeedDemo: true, BundleSeedHex: testBundleSeed})
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer srv.Close()
+	tenant, _, _, _, demoSpk := srv.Store().DemoIDs()
+	mustSetTestAPIKeys(t, srv, "vwkey|"+tenant+"|viewer")
+
+	req := httptest.NewRequest(http.MethodGet, "/v1/speakers/"+demoSpk, nil)
+	req.Header.Set("Authorization", "Bearer vwkey")
+	rec := httptest.NewRecorder()
+	srv.Handler().ServeHTTP(rec, req)
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status %d body %s", rec.Code, rec.Body.String())
+	}
+	var out map[string]any
+	if err := json.Unmarshal(rec.Body.Bytes(), &out); err != nil {
+		t.Fatal(err)
+	}
+	if out["agent_secret"] != nil {
+		t.Fatalf("agent_secret must not appear at top level: %#v", out["agent_secret"])
+	}
+	meta, _ := out["meta_json"].(map[string]any)
+	if meta != nil {
+		if v, ok := meta["agent_secret"]; ok && v != nil && v != "" {
+			t.Fatalf("agent_secret must be redacted from meta_json: %#v", v)
+		}
+	}
+}
+
+func TestListSpeakers_redactsAgentSecret(t *testing.T) {
+	srv, err := New(Options{InsecureDev: true, SeedDemo: true, BundleSeedHex: testBundleSeed})
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer srv.Close()
+	tenant, _, _, _, _ := srv.Store().DemoIDs()
+	mustSetTestAPIKeys(t, srv, "vwkey|"+tenant+"|viewer")
+
+	req := httptest.NewRequest(http.MethodGet, "/v1/speakers", nil)
+	req.Header.Set("Authorization", "Bearer vwkey")
+	rec := httptest.NewRecorder()
+	srv.Handler().ServeHTTP(rec, req)
+	if rec.Code != http.StatusOK {
+		t.Fatalf("status %d body %s", rec.Code, rec.Body.String())
+	}
+	body := rec.Body.String()
+	if strings.Contains(body, "agent_secret") {
+		t.Fatalf("list response must not contain agent_secret: %s", body)
+	}
+}