tui: add top-level model and run entrypoint

1 files changed, 6 insertions, 12 deletions

diff --git a/internal/tui/msg.go b/internal/tui/msg.go
index ba2ec53..c69e806 100644
--- a/internal/tui/msg.go
+++ b/internal/tui/msg.go
@@ -1,24 +1,18 @@
 package tui
 
-import "ior/internal/statsengine"
+import "ior/internal/tui/messages"
 
 // PidSelectedMsg is emitted when the user selects a PID from the process table.
-type PidSelectedMsg struct {
-	Pid int
-}
+type PidSelectedMsg = messages.PidSelectedMsg
 
 // StatsTickMsg carries a fresh immutable snapshot from the stats engine.
-type StatsTickMsg struct {
-	Snap *statsengine.Snapshot
-}
+type StatsTickMsg = messages.StatsTickMsg
 
 // ExportRequestMsg requests an export of the current UI state.
-type ExportRequestMsg struct{}
+type ExportRequestMsg = messages.ExportRequestMsg
 
 // TracingStartedMsg signals that tracing started successfully.
-type TracingStartedMsg struct{}
+type TracingStartedMsg = messages.TracingStartedMsg
 
 // TracingErrorMsg reports an error while starting or running tracing.
-type TracingErrorMsg struct {
-	Err error
-}
+type TracingErrorMsg = messages.TracingErrorMsg