Implement chat and markdown views, enhance status bar, and add workflow panel

- Added `chat.rs` for rendering chat messages with timestamps and roles.
- Introduced `markdown.rs` for rendering markdown content with styling.
- Created `status.rs` to display the application status bar with session and message counts.
- Developed `workflow.rs` to show the current workflow status, including tool calls and active jobs.
- Established a `theme.rs` for centralized color management across the UI.
- Updated `mod.rs` to include new modules and manage rendering logic.

src/view/workflow.rs

@@ -0,0 +1,86 @@
+use ratatui::layout::Rect;
+use ratatui::style::{Style, Modifier};
+use ratatui::text::{Line, Span};
+use ratatui::widgets::{Block, Borders, List, ListItem};
+use ratatui::Frame;
+use super::theme::Theme;
+
+pub fn draw_workflow_panel(frame: &mut Frame, area: Rect, state: &crate::app::state::rest::AppStateRest) {
+    let block = Block::default()
+        .borders(Borders::ALL)
+        .border_style(Style::default().fg(Theme::BORDER))
+        .title(" Workflow ");
+
+    let session_runtime = match &state.session_runtime {
+        Some(r) => r,
+        None => {
+            let empty = Block::default().borders(Borders::ALL).title(" Workflow ");
+            let paragraph = ratatui::widgets::Paragraph::new(Line::from(Span::raw("No active session")))
+                .block(empty);
+            frame.render_widget(paragraph, area);
+            return;
+        }
+    };
+
+    let tool_count = session_runtime.tool_call_results.len();
+    let pending_count = session_runtime.pending_tool_queue.len();
+    let bash_count = session_runtime.bash_jobs.len();
+    let subagent_queue = session_runtime.subagent_queue;
+    let edit_count = session_runtime.edit_count;
+
+    let mut items = Vec::new();
+
+    items.push(ListItem::new(Line::from(Span::styled(
+        format!(" Messages: {}", session_runtime.messages.len()),
+        Style::default().fg(Theme::TEXT),
+    ))));
+
+    items.push(ListItem::new(Line::from(Span::styled(
+        format!(" Tool calls completed: {}", tool_count),
+        Style::default().fg(Theme::SUCCESS),
+    ))));
+
+    if pending_count > 0 {
+        items.push(ListItem::new(Line::from(Span::styled(
+            format!(" Pending tool queue: {}", pending_count),
+            Style::default().fg(Theme::WARNING),
+        ))));
+    }
+
+    if bash_count > 0 {
+        items.push(ListItem::new(Line::from(Span::styled(
+            format!(" Active bash jobs: {}", bash_count),
+            Style::default().fg(Theme::WARNING),
+        ))));
+    }
+
+    if subagent_queue > 0 {
+        items.push(ListItem::new(Line::from(Span::styled(
+            format!(" Subagent queue: {}", subagent_queue),
+            Style::default().fg(Theme::INFO),
+        ))));
+    }
+
+    items.push(ListItem::new(Line::from(Span::styled(
+        format!(" Edits: {}", edit_count),
+        Style::default().fg(Theme::INFO),
+    ))));
+
+    let phase_status = match state.mode {
+        crate::app::state::types::AgentMode::Auto => "Auto-running",
+        crate::app::state::types::AgentMode::Normal => "Awaiting input",
+        crate::app::state::types::AgentMode::Plan => "Planning",
+        crate::app::state::types::AgentMode::Yolo => "Full autonomy",
+    };
+
+    items.push(ListItem::new(Line::from(Span::styled(
+        format!(" Phase: {}", phase_status),
+        Style::default().fg(Theme::PRIMARY),
+    ))));
+
+    let list = List::new(items)
+        .block(block)
+        .highlight_style(Style::default().add_modifier(Modifier::BOLD));
+
+    frame.render_widget(list, area);
+}