feat(remote-speakers): enhance remote speaker management and API integration

- Added support for remote speaker configuration in the README and documentation.
- Implemented a new endpoint for retrieving the bundle signing public key.
- Updated the `evobgp-agent` to include a `serve` command for Panel→Node sync API.
- Enhanced CI workflow to validate remote speaker compose files.
- Introduced new fields in the API and UI for managing speaker metadata, including dispatch status and sync status.
- Improved error handling and response formatting in speaker-related API endpoints.
- Updated documentation to reflect changes in remote speaker functionality and usage guidelines.

internal/httpapi/speakers_test.go

@@ -0,0 +1,65 @@
+package httpapi
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+)
+
+func TestPostSpeaker_defaultsFromEndpointIP(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, "edkey|"+tenant+"|editor")
+
+	body := `{"endpoint":"https://203.0.113.55:8443","role":"replica"}`
+	req := httptest.NewRequest(http.MethodPost, "/v1/speakers", strings.NewReader(body))
+	req.Header.Set("Authorization", "Bearer edkey")
+	req.Header.Set("Content-Type", "application/json")
+	rec := httptest.NewRecorder()
+	srv.Handler().ServeHTTP(rec, req)
+	if rec.Code != http.StatusCreated {
+		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 || out["agent_secret"] == "" {
+		t.Fatal("expected agent_secret on create")
+	}
+	if out["node_ipv4"] != "203.0.113.55" {
+		t.Fatalf("node_ipv4: %#v", out["node_ipv4"])
+	}
+	if out["bird_bgp_source_ipv4"] != "203.0.113.55" {
+		t.Fatalf("bird_bgp_source_ipv4: %#v", out["bird_bgp_source_ipv4"])
+	}
+}
+
+func TestGetBundleSigningPublicKey(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/bundle/signing-public-key", 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
+	_ = json.Unmarshal(rec.Body.Bytes(), &out)
+	if out["public_key_base64"] == nil || out["public_key_base64"] == "" {
+		t.Fatalf("missing public_key_base64: %#v", out)
+	}
+}