model: DiscoveredService, reported by site agents as suggested targets

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

model/model.go

@@ -323,6 +323,18 @@ type ContainerPort struct {
 	Type    string `json:"type"`
 }
 
+// DiscoveredService is a listening service an agent found on its own network (local sockets or an
+// opt-in scan of configured subnets). Hammerhead offers these as suggested targets; nothing is
+// proxied until an administrator picks one.
+type DiscoveredService struct {
+	Host    string `json:"host"` // address to dial, as seen from the agent
+	Port    int    `json:"port"`
+	Proto   string `json:"proto"`             // "tcp"
+	Service string `json:"service,omitempty"` // best guess: http, https, ssh, smtp, ftp, mysql, ... (empty = unknown)
+	Detail  string `json:"detail,omitempty"`  // banner or Server header, trimmed
+	Source  string `json:"source"`            // "local" (listening socket on the agent's host) or "scan"
+}
+
 // EdgeReport is what blacktip posts back.
 type EdgeReport struct {
 	IPs        []string                 `json:"ips"`
@@ -363,14 +375,15 @@ type SiteConfig struct {
 
 // SiteReport is what bamboo posts back.
 type SiteReport struct {
-	PublicKey  string            `json:"publicKey"`  // the agent's WireGuard public key
+	PublicKey  string              `json:"publicKey"`  // the agent's WireGuard public key
-	MailEgress map[string]string `json:"mailEgress"` // egress ID -> "" (listening) or an error
+	MailEgress map[string]string   `json:"mailEgress"` // egress ID -> "" (listening) or an error
-	Connected  []string          `json:"connected"`
+	Connected  []string            `json:"connected"`
-	Containers []Container       `json:"containers"`
+	Containers []Container         `json:"containers"`
-	Version    string            `json:"version,omitempty"`
+	Discovered []DiscoveredService `json:"discovered,omitempty"`
-	AutoUpdate bool              `json:"autoUpdate,omitempty"`
+	Version    string              `json:"version,omitempty"`
-	UpdateMsg  string            `json:"updateMsg,omitempty"`
+	AutoUpdate bool                `json:"autoUpdate,omitempty"`
-	UpdateID   string            `json:"updateId,omitempty"`
+	UpdateMsg  string              `json:"updateMsg,omitempty"`
+	UpdateID   string              `json:"updateId,omitempty"`
 	// progress of that update, for the dashboard's progress bar and log
 	UpdateStage string   `json:"updateStage,omitempty"`
 	UpdatePct   int      `json:"updatePct,omitempty"`