feat: add MCP registry API support

Signed-off-by: Grant Linville <grant@acorn.io>

Author: g-linville

apiclient/types/registry.go

@@ -0,0 +1,73 @@
+package types
+
+// RegistryServerList represents the paginated list response from /v0.1/servers
+type RegistryServerList struct {
+	Servers  []RegistryServerResponse `json:"servers"`
+	Metadata *RegistryMetadata        `json:"metadata,omitempty"`
+}
+
+// RegistryMetadata contains pagination metadata
+type RegistryMetadata struct {
+	NextCursor string `json:"nextCursor,omitempty"`
+	Count      int    `json:"count,omitempty"`
+}
+
+// RegistryServerResponse wraps a server with registry metadata
+type RegistryServerResponse struct {
+	Server ServerDetail `json:"server"`
+	Meta   RegistryMeta `json:"_meta,omitzero"`
+}
+
+// ServerDetail matches the Registry API ServerDetail schema
+// For Obot, configured servers always use Remotes (never Packages)
+type ServerDetail struct {
+	Name        string              `json:"name"`
+	Description string              `json:"description"`
+	Title       string              `json:"title,omitempty"`
+	Version     string              `json:"version"`
+	WebsiteURL  string              `json:"websiteUrl,omitempty"`
+	Icons       []RegistryIcon      `json:"icons,omitempty"`
+	Remotes     []RegistryRemote    `json:"remotes,omitempty"`
+	Repository  *RegistryRepository `json:"repository,omitempty"`
+	Schema      string              `json:"$schema,omitempty"`
+}
+
+// RegistryIcon represents an icon for display
+type RegistryIcon struct {
+	Src      string   `json:"src"`
+	MimeType string   `json:"mimeType,omitempty"`
+	Sizes    []string `json:"sizes,omitempty"`
+	Theme    string   `json:"theme,omitempty"`
+}
+
+// RegistryRemote represents a remote server configuration
+// All Obot servers are exposed as streamable-http remotes via mcp-connect
+type RegistryRemote struct {
+	Type string `json:"type"` // Always "streamable-http" for configured Obot servers
+	URL  string `json:"url"`  // The mcp-connect URL
+}
+
+// RegistryRepository represents repository metadata
+type RegistryRepository struct {
+	URL       string `json:"url"`
+	Source    string `json:"source"`
+	ID        string `json:"id,omitempty"`
+	Subfolder string `json:"subfolder,omitempty"`
+}
+
+// RegistryMeta contains registry-managed metadata
+type RegistryMeta struct {
+	Obot     *RegistryObotMeta `json:"ai.obot/server,omitempty"`
+	Official Official          `json:"io.modelcontextprotocol.registry/official,omitempty"`
+}
+
+type Official struct {
+	Status    string `json:"status,omitempty"`
+	CreatedAt string `json:"createdAt,omitempty"`
+}
+
+// RegistryObotMeta contains Obot-specific metadata
+type RegistryObotMeta struct {
+	ConfigurationRequired bool   `json:"configurationRequired,omitempty"`
+	ConfigurationMessage  string `json:"configurationMessage,omitempty"`
+}