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.

agent/deploy/shard_gossip.go

@@ -0,0 +1,42 @@
+package deploy
+
+import (
+	"fmt"
+	"strings"
+)
+
+func FormatShardAdvert(region string, shardIndex int) string {
+	return fmt.Sprintf("%s:%d", strings.TrimSpace(region), shardIndex)
+}
+
+func ParseShardAdvert(advert string) (region string, index int, ok bool) {
+	advert = strings.TrimSpace(advert)
+	colon := strings.LastIndex(advert, ":")
+	if colon <= 0 {
+		return "", 0, false
+	}
+	region = strings.TrimSpace(advert[:colon])
+	if _, err := fmt.Sscanf(strings.TrimSpace(advert[colon+1:]), "%d", &index); err != nil {
+		return "", 0, false
+	}
+	return region, index, region != ""
+}
+
+func ResolveLocalAWSRegion(policyFallback string) string {
+	if meta := ReadEC2InstanceMeta(); strings.TrimSpace(meta.Region) != "" {
+		return strings.TrimSpace(meta.Region)
+	}
+	return strings.TrimSpace(policyFallback)
+}
+
+func cloudFrontShardURL(domain, token, region string, index int, shardHash string) string {
+	domain = strings.TrimRight(strings.TrimSpace(domain), "/")
+	shardHash = strings.TrimSpace(strings.ToLower(shardHash))
+	if domain == "" || token == "" || region == "" || shardHash == "" {
+		return ""
+	}
+	if !strings.HasPrefix(domain, "http") {
+		domain = "https://" + domain
+	}
+	return fmt.Sprintf("%s/shards/%s/%s/%d-%s.bin", domain, token, region, index, shardHash)
+}