add local daemon socket protocol

internal/protocol/frame.go

@@ -32,6 +32,9 @@ const (
 	FramePaletteCommand FrameType = "palette_command"
 	FrameTrustResponse  FrameType = "trust_response"
 	FrameResize         FrameType = "resize"
+	FrameList           FrameType = "list"
+	FrameStop           FrameType = "stop"
+	FrameError          FrameType = "error"
 )
 
 // Frame is the transport envelope. Payload is deliberately raw JSON so
@@ -72,9 +75,10 @@ type Hello struct {
 }
 
 type Attach struct {
-	Token      string `json:"token,omitempty"`
-	ProjectKey string `json:"project_key,omitempty"`
-	TermSize   Size   `json:"term_size"`
+	Token       string `json:"token,omitempty"`
+	ProjectKey  string `json:"project_key,omitempty"`
+	ProjectPath string `json:"project_path,omitempty"`
+	TermSize    Size   `json:"term_size"`
 }
 
 type Detach struct {
@@ -162,3 +166,7 @@ type TrustResponse struct {
 type Resize struct {
 	Size Size `json:"size"`
 }
+
+type Error struct {
+	Message string `json:"message"`
+}