feat: import agents_and_robots platform as unibots (Matrix-out, unibus transport)

Reemplaza el scaffold del echobot por la plataforma completa de bots traida
desde ~/DataProyects/Github/agents_and_robots tras la operacion Matrix-out:
los bots ya no hablan por Matrix sino por el bus unibus (modelo todo-rooms +
E2E via shell/transportunibus sobre github.com/enmanuel/unibus/pkg/client).

- go.mod: replace de unibus -> ../unibus y de fn-registry -> ../../../.. (paths
  relativos reajustados a la nueva ubicacion dentro de fn_registry).
- app.md: bump a 0.2.0, descripcion + arquitectura + comandos + gotchas reales.
- modulo Go conservado como github.com/enmanuel/agents (sin reescribir imports).

agents_and_robots queda archivado como museo de la era Matrix.

pkg/tui/model.go

@@ -0,0 +1,136 @@
+// Package tui defines the pure TUI model, messages, update, and view.
+// Zero I/O, zero side effects. Only data transformations.
+package tui
+
+// Screen identifies the current TUI screen.
+type Screen int
+
+const (
+	ScreenMain         Screen = iota
+	ScreenAgentList           // list all agents with status
+	ScreenAgentActions        // actions for a selected agent
+	ScreenLogs                // tail log output
+	ScreenServer              // server-wide process management
+	ScreenTests               // test type selection menu
+	ScreenTestOutput          // test run output
+)
+
+// TestKind identifies which test suite to run.
+type TestKind int
+
+const (
+	TestKindNone    TestKind = iota
+	TestKindGo               // go test -tags goolm -count=1 ./...
+	TestKindE2E              // ./dev-scripts/e2e/run.sh
+	TestKindE2EHead          // ./dev-scripts/e2e/run.sh --headed
+	TestKindAll              // Go tests + E2E sequential
+)
+
+// Model is the complete TUI state — pure data.
+type Model struct {
+	Screen       Screen
+	Agents       []AgentView
+	Cursor       int
+	Selected     *AgentView // nil when no agent selected
+	LogLines     []string
+	LogScroll    int
+	StatusMsg    string // flash message ("Started OK", "Error: ...")
+	WindowWidth  int
+	WindowHeight int
+
+	// Unified launcher state
+	LauncherRunning bool
+	LauncherPID     int
+	LauncherUptime  string
+	LauncherMemory  string
+	LauncherCPU     string
+	LauncherLogSize string
+
+	// Test state
+	LastTestKind TestKind // which test to re-run with "r"
+}
+
+// AgentView is a pre-formatted projection of an agent for display.
+type AgentView struct {
+	ID        string
+	Name      string
+	Version   string
+	Desc      string
+	Enabled   bool
+	Running   bool
+	PID       int
+	Instances int    // number of running instances (>1 means duplicates)
+	Uptime    string // formatted: "2h 15m"
+	Memory    string // formatted: "42 MB"
+	CPU       string // formatted: "1.2%"
+	LogSize   string // formatted: "350 KB"
+}
+
+// MenuOption represents a selectable menu item.
+type MenuOption struct {
+	Label string
+	Desc  string
+}
+
+// MainMenuOptions returns the options for the main screen.
+func MainMenuOptions() []MenuOption {
+	return []MenuOption{
+		{Label: "Agents", Desc: "Gestionar agentes"},
+		{Label: "Server", Desc: "Gestionar launcher unificado"},
+		{Label: "Tests", Desc: "Ejecutar tests"},
+		{Label: "Quit", Desc: "Salir"},
+	}
+}
+
+// TestMenuOptions returns the available test types.
+func TestMenuOptions() []MenuOption {
+	return []MenuOption{
+		{Label: "Go Tests", Desc: "go test ./..."},
+		{Label: "E2E Tests", Desc: "Playwright headless"},
+		{Label: "E2E Tests (headed)", Desc: "Playwright con browser"},
+		{Label: "All Tests", Desc: "Go + E2E secuencial"},
+	}
+}
+
+// ServerMenuOptions returns the available server-wide actions.
+func ServerMenuOptions(running bool) []MenuOption {
+	if running {
+		return []MenuOption{
+			{Label: "Reload All", Desc: "Hot-reload de todos los agentes (SIGHUP)"},
+			{Label: "Stop", Desc: "Detener el launcher"},
+			{Label: "Restart", Desc: "Reiniciar el launcher"},
+			{Label: "Kill", Desc: "SIGKILL forzado"},
+			{Label: "Rebuild & Restart", Desc: "Build + reiniciar"},
+			{Label: "Logs", Desc: "Ver log del launcher"},
+			{Label: "Tests", Desc: "Ir a pantalla de tests"},
+		}
+	}
+	return []MenuOption{
+		{Label: "Start", Desc: "Iniciar el launcher unificado"},
+		{Label: "Rebuild & Restart", Desc: "Build + iniciar"},
+		{Label: "Tests", Desc: "Ir a pantalla de tests"},
+	}
+}
+
+// AgentActionOptions returns the available actions based on agent state.
+func AgentActionOptions(enabled bool) []MenuOption {
+	if enabled {
+		return []MenuOption{
+			{Label: "Reload", Desc: "Hot-reload este agente (SIGHUP, sin interrumpir los demás)"},
+			{Label: "Restart", Desc: "Reiniciar el launcher completo (todos los agentes)"},
+			{Label: "Disable", Desc: "Desactivar agente (requiere restart)"},
+			{Label: "Logs", Desc: "Ver log del launcher"},
+		}
+	}
+	return []MenuOption{
+		{Label: "Reload", Desc: "Hot-reload este agente (SIGHUP, sin interrumpir los demás)"},
+		{Label: "Restart", Desc: "Reiniciar el launcher completo (todos los agentes)"},
+		{Label: "Enable", Desc: "Activar agente (requiere restart)"},
+		{Label: "Logs", Desc: "Ver log del launcher"},
+	}
+}
+
+// InitialModel returns the starting state.
+func InitialModel() Model {
+	return Model{Screen: ScreenMain}
+}