feat: implement Component trait for modular UI components and refactor TUI views to use it

apps/interfaces/tui/src/components/component.rs

@@ -0,0 +1,21 @@
+//! Base trait for all TUI components.
+
+use crossterm::event::Event;
+use ratatui::layout::Rect;
+use ratatui::Frame;
+use crate::action::Action;
+use crate::state::AppStateRest;
+
+/// Base trait for modular UI components in the TUI.
+pub trait Component {
+    /// Draw the component to the screen.
+    fn draw(&mut self, f: &mut Frame, area: Rect, state: &AppStateRest);
+
+    /// Optional: Pre-render caching phase called before draw.
+    fn pre_render(&mut self, _state: &mut AppStateRest) {}
+    
+    /// Handle an input event. Return an optional Action to dispatch.
+    fn handle_event(&mut self, _event: Event, _state: &mut AppStateRest) -> Option<Action> {
+        None
+    }
+}

apps/interfaces/tui/src/components/mod.rs

@@ -2,3 +2,6 @@
 //!
 //! This module will grow as shared widgets (buttons, input fields, etc.)
 //! are extracted from individual overlay and view modules.
+
+pub mod component;
+pub use component::Component;