feat: add supervisor prototype with embedded frontend

internal/domain/agent.go

@@ -0,0 +1,10 @@
+package domain
+
+import "time"
+
+type Agent struct {
+	ID        string    `json:"id"`
+	Name      string    `json:"name"`
+	Kind      string    `json:"kind"`
+	CreatedAt time.Time `json:"createdAt"`
+}

internal/domain/event.go

@@ -0,0 +1,32 @@
+package domain
+
+import "time"
+
+type EventType string
+
+const (
+	EventTerminalOutput EventType = "terminal.output"
+	EventSessionStatus  EventType = "session.status"
+	EventError          EventType = "error"
+)
+
+type Event struct {
+	Type      EventType       `json:"type"`
+	SessionID string          `json:"session"`
+	Payload   any             `json:"payload"`
+	At        time.Time       `json:"at"`
+}
+
+// TerminalOutputEvent carries raw terminal bytes as UTF-8 text.
+type TerminalOutputEvent struct {
+	Data string `json:"data"`
+}
+
+type SessionStatusEvent struct {
+	Status   SessionStatus `json:"status"`
+	ExitCode *int          `json:"exitCode,omitempty"`
+}
+
+type ErrorEvent struct {
+	Message string `json:"message"`
+}

internal/domain/run.go

@@ -0,0 +1,20 @@
+package domain
+
+import "time"
+
+type RunStatus string
+
+const (
+	RunStatusPlanned RunStatus = "planned"
+	RunStatusRunning RunStatus = "running"
+	RunStatusDone    RunStatus = "done"
+	RunStatusFailed  RunStatus = "failed"
+)
+
+type Run struct {
+	ID          string    `json:"id"`
+	WorkflowID  string    `json:"workflowId"`
+	RequestedBy string    `json:"requestedBy"`
+	Status      RunStatus `json:"status"`
+	CreatedAt   time.Time `json:"createdAt"`
+}

internal/domain/session.go

@@ -0,0 +1,25 @@
+package domain
+
+import "time"
+
+type SessionStatus string
+
+const (
+	SessionStatusCreated SessionStatus = "created"
+	SessionStatusRunning SessionStatus = "running"
+	SessionStatusStopped SessionStatus = "stopped"
+	SessionStatusExited  SessionStatus = "exited"
+	SessionStatusError   SessionStatus = "error"
+)
+
+type Session struct {
+	ID        string        `json:"id"`
+	Name      string        `json:"name"`
+	AgentID   string        `json:"agentId"`
+	Command   string        `json:"command"`
+	Status    SessionStatus `json:"status"`
+	CreatedAt time.Time     `json:"createdAt"`
+	StartedAt *time.Time    `json:"startedAt,omitempty"`
+	ExitedAt  *time.Time    `json:"exitedAt,omitempty"`
+	ExitCode  *int          `json:"exitCode,omitempty"`
+}