feat: TUI Phase 1 common widgets + scoring/path beads

crates/lore-tui/src/state/mr_detail.rs

@@ -0,0 +1,14 @@
+#![allow(dead_code)]
+
+//! Merge request detail screen state.
+
+use crate::message::{Discussion, EntityKey, MrDetail};
+
+/// State for the MR detail screen.
+#[derive(Debug, Default)]
+pub struct MrDetailState {
+    pub key: Option<EntityKey>,
+    pub detail: Option<MrDetail>,
+    pub discussions: Vec<Discussion>,
+    pub scroll_offset: u16,
+}