Initial upload: DevDash CLI with TUI dashboard

src/ui/screens/dashboard.py

@@ -0,0 +1,58 @@
+from textual.app import ComposeResult
+from textual.containers import Container, Vertical, Grid
+from textual.screen import Screen
+from textual.widgets import Static, Header, Footer, Label
+from textual import work
+from src.ui.components.panels import GitStatusPanel, CIStatusPanel, PullRequestsPanel, IssuesPanel
+from src.api.github import GitHubClient
+from src.git.status import get_git_status, is_git_repo
+import os
+
+
+class DashboardScreen(Screen):
+    CSS = """
+    DashboardScreen {
+        layout: grid;
+        grid-size: 2 2;
+        grid-rows: 1fr 1fr;
+        grid-columns: 1fr 1fr;
+    }
+    """
+
+    def compose(self) -> ComposeResult:
+        yield Header(show_clock=True)
+        yield Container(
+            GitStatusPanel(id="git-status"),
+            CIStatusPanel(id="ci-status"),
+            PullRequestsPanel(id="prs"),
+            IssuesPanel(id="issues"),
+            id="dashboard-grid"
+        )
+        yield Footer()
+
+    def on_mount(self) -> None:
+        self.refresh_dashboard()
+
+    def on_key(self, event: events.Key) -> None:
+        if event.key == "r":
+            self.refresh_dashboard()
+        elif event.key == "q":
+            self.app.exit()
+
+    @work(exclusive=True)
+    async def refresh_dashboard(self) -> None:
+        try:
+            git_status = get_git_status()
+            self.query_one("#git-status", GitStatusPanel).update_status(git_status)
+        except Exception:
+            pass
+
+        repo = os.environ.get("DEVDASH_REPO", "")
+        if repo and "/" in repo:
+            owner, repo_name = repo.split("/", 1)
+            try:
+                client = GitHubClient()
+                prs = await client.get_pull_requests(owner, repo_name)
+                self.query_one("#prs", PullRequestsPanel).update_prs(prs)
+            except Exception:
+                pass