diff --git a/src/ui/screens/dashboard.py b/src/ui/screens/dashboard.py
index f2b3f5a..6bd43c3 100644
--- a/src/ui/screens/dashboard.py
+++ b/src/ui/screens/dashboard.py
@@ -1,6 +1,7 @@
 """Main dashboard screen for DevDash."""
 
 from datetime import datetime
+from typing import Any
 
 from textual.app import ComposeResult
 from textual.containers import Container
@@ -193,7 +194,7 @@ class DashboardScreen(Container):
     def stop_auto_refresh(self) -> None:
         """Stop automatic data refresh."""
         if self._timer_id:
-            self.clear_interval(self._timer_id)
+            self._timer_id.stop()
             self._timer_id = None
 
     def action_refresh(self) -> None:
@@ -228,56 +229,65 @@ class DashboardScreen(Container):
     def update_header(self) -> None:
         """Update header with current state."""
         if self.repo:
-            repo_info = self.query_one("#repo-info")
+            repo_info: Static = self.query_one("#repo-info")
             repo_info.update(f"[bold]Repository:[/] {self.repo} ({self.provider})")
 
         if self.last_refresh:
-            timer = self.query_one("#refresh-timer")
+            timer: Static = self.query_one("#refresh-timer")
             timer.update(f"[dim]Last refresh:[/] {self.last_refresh.strftime('%H:%M:%S')}")
 
+    def _build_git_status_lines(self, status: Any) -> list[str]:
+        """Build git status display lines.
+
+        Args:
+            status: GitStatus object.
+
+        Returns:
+            List of formatted status lines.
+        """
+        lines = []
+        lines.append(f"[bold]Branch:[/] {status.branch}")
+        lines.append(f"[bold]Commit:[/] {status.commit_hash[:7]}")
+
+        if status.commit_message:
+            lines.append(f"[dim]{status.commit_message[:40]}[/]")
+
+        lines.append("")
+
+        if status.is_detached:
+            lines.append("[yellow]![/] Detached HEAD")
+        else:
+            status_indicator = "[green]✓[/] Clean" if status.is_clean else "[yellow]![/] Uncommitted changes"
+            lines.append(f"[bold]Status:[/] {status_indicator}")
+
+        file_changes = []
+        if status.staged_files > 0:
+            file_changes.append(f"[green]+{status.staged_files}[/]")
+        if status.unstaged_files > 0:
+            file_changes.append(f"[yellow]~{status.unstaged_files}[/]")
+        if status.untracked_files > 0:
+            file_changes.append(f"[red]?{status.untracked_files}[/]")
+
+        if file_changes:
+            lines.append(f"[bold]Changes:[/] {' '.join(file_changes)}")
+
+        if status.ahead > 0 or status.behind > 0:
+            sync_info = []
+            if status.ahead > 0:
+                sync_info.append(f"[green]+{status.ahead}[/]")
+            if status.behind > 0:
+                sync_info.append(f"[red]-{status.behind}[/]")
+            lines.append(f"[bold]Sync:[/] {' '.join(sync_info)}")
+
+        return lines
+
     def update_git_status(self) -> None:
         """Update git status panel."""
         git_panel = self.query_one("#git-status")
 
         try:
             status = get_git_status()
-
-            status_indicator = "[green]✓[/] Clean" if status.is_clean else "[yellow]![/] Uncommitted changes"
-
-            lines = [
-                f"[bold]Branch:[/] {status.branch}",
-                f"[bold]Commit:[/] {status.commit_hash[:7]}",
-            ]
-
-            if status.commit_message:
-                lines.append(f"[dim]{status.commit_message[:40]}[/]")
-
-            lines.append("")
-
-            if status.is_detached:
-                lines.append("[yellow]![/] Detached HEAD")
-            else:
-                lines.append(f"[bold]Status:[/] {status_indicator}")
-
-            file_changes = []
-            if status.staged_files > 0:
-                file_changes.append(f"[green]+{status.staged_files}[/]")
-            if status.unstaged_files > 0:
-                file_changes.append(f"[yellow]~{status.unstaged_files}[/]")
-            if status.untracked_files > 0:
-                file_changes.append(f"[red]?{status.untracked_files}[/]")
-
-            if file_changes:
-                lines.append(f"[bold]Changes:[/] {' '.join(file_changes)}")
-
-            if status.ahead > 0 or status.behind > 0:
-                sync_info = []
-                if status.ahead > 0:
-                    sync_info.append(f"[green]+{status.ahead}[/]")
-                if status.behind > 0:
-                    sync_info.append(f"[red]-{status.behind}[/]")
-                lines.append(f"[bold]Sync:[/] {' '.join(sync_info)}")
-
+            lines = self._build_git_status_lines(status)
             git_panel.update("\n".join(lines))
 
         except GitStatusError as e: