Add Emberwake Cloud Ecosystem deploy hub with AWS and generic spread templates.

Unified expandable panels with mermaid flows, ZIP export, connection tests, and Playwright smoke coverage.

server/internal/api/spread_s3_crr_test.go

@@ -0,0 +1,33 @@
+package api
+
+import (
+	"encoding/json"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"crypto-miner-server/internal/erasure"
+)
+
+func TestGetS3CRRTemplate(t *testing.T) {
+	h := NewSpreadHandler(nil, t.TempDir(), t.TempDir(), nil)
+	h.BindS3CRRConfig(func() erasure.S3ShardConfig {
+		return erasure.S3ShardConfig{
+			ShardBucket: "primary", ShardRegion: "us-east-1",
+			CRRDestBucket: "replica", CRRDestRegion: "eu-west-1",
+		}
+	})
+	req := httptest.NewRequest(http.MethodGet, "/api/v1/spread/aws-s3-crr-template", nil)
+	w := httptest.NewRecorder()
+	h.GetS3CRRTemplate(w, req)
+	if w.Code != http.StatusOK {
+		t.Fatalf("status=%d body=%s", w.Code, w.Body.String())
+	}
+	var body map[string]interface{}
+	if err := json.Unmarshal(w.Body.Bytes(), &body); err != nil {
+		t.Fatal(err)
+	}
+	if body["rule"] == nil {
+		t.Fatalf("body=%v", body)
+	}
+}