feat: add board list home screen with new board dialog and context menu

src/App.tsx

@@ -1,6 +1,8 @@
 import { useEffect } from "react";
 import { useAppStore } from "@/stores/app-store";
 import { AppShell } from "@/components/layout/AppShell";
+import { BoardList } from "@/components/boards/BoardList";
+import { BoardView } from "@/components/board/BoardView";
 
 export default function App() {
   const initialized = useAppStore((s) => s.initialized);
@@ -23,15 +25,7 @@ export default function App() {
 
   return (
     <AppShell>
-      {view.type === "board-list" ? (
+      {view.type === "board-list" ? <BoardList /> : <BoardView />}
-        <div className="flex h-full items-center justify-center text-pylon-text-secondary">
-          Board List
-        </div>
-      ) : (
-        <div className="flex h-full items-center justify-center text-pylon-text-secondary">
-          Board View
-        </div>
-      )}
     </AppShell>
   );
 }

src/components/boards/BoardCard.tsx

@@ -0,0 +1,146 @@
+import { useState } from "react";
+import { formatDistanceToNow } from "date-fns";
+import { Trash2, Copy } from "lucide-react";
+import {
+  ContextMenu,
+  ContextMenuContent,
+  ContextMenuItem,
+  ContextMenuTrigger,
+  ContextMenuSeparator,
+} from "@/components/ui/context-menu";
+import {
+  Dialog,
+  DialogContent,
+  DialogHeader,
+  DialogTitle,
+  DialogDescription,
+  DialogFooter,
+} from "@/components/ui/dialog";
+import { Button } from "@/components/ui/button";
+import type { BoardMeta } from "@/types/board";
+import { useAppStore } from "@/stores/app-store";
+import { useBoardStore } from "@/stores/board-store";
+import { deleteBoard, loadBoard, saveBoard } from "@/lib/storage";
+
+interface BoardCardProps {
+  board: BoardMeta;
+}
+
+export function BoardCard({ board }: BoardCardProps) {
+  const [confirmDelete, setConfirmDelete] = useState(false);
+
+  const setView = useAppStore((s) => s.setView);
+  const addRecentBoard = useAppStore((s) => s.addRecentBoard);
+  const refreshBoards = useAppStore((s) => s.refreshBoards);
+  const openBoard = useBoardStore((s) => s.openBoard);
+
+  const relativeTime = formatDistanceToNow(new Date(board.updatedAt), {
+    addSuffix: true,
+  });
+
+  async function handleOpen() {
+    await openBoard(board.id);
+    setView({ type: "board", boardId: board.id });
+    addRecentBoard(board.id);
+  }
+
+  async function handleDelete() {
+    await deleteBoard(board.id);
+    await refreshBoards();
+    setConfirmDelete(false);
+  }
+
+  async function handleDuplicate() {
+    const original = await loadBoard(board.id);
+    const { ulid } = await import("ulid");
+    const ts = new Date().toISOString();
+    const duplicated = {
+      ...original,
+      id: ulid(),
+      title: `${original.title} (copy)`,
+      createdAt: ts,
+      updatedAt: ts,
+    };
+    await saveBoard(duplicated);
+    await refreshBoards();
+  }
+
+  return (
+    <>
+      <ContextMenu>
+        <ContextMenuTrigger asChild>
+          <button
+            onClick={handleOpen}
+            className="group flex w-full flex-col rounded-lg bg-pylon-surface shadow-sm transition-all duration-200 hover:-translate-y-0.5 hover:shadow-md text-left"
+          >
+            {/* Color accent stripe */}
+            <div
+              className="h-1 w-full rounded-t-lg"
+              style={{ backgroundColor: board.color }}
+            />
+
+            <div className="flex flex-col gap-2 p-4">
+              {/* Board title */}
+              <h3 className="font-heading text-lg text-pylon-text">
+                {board.title}
+              </h3>
+
+              {/* Stats line */}
+              <p className="font-mono text-xs text-pylon-text-secondary">
+                {board.cardCount} card{board.cardCount !== 1 ? "s" : ""} &middot;{" "}
+                {board.columnCount} column{board.columnCount !== 1 ? "s" : ""}
+              </p>
+
+              {/* Relative time */}
+              <p className="font-mono text-xs text-pylon-text-secondary">
+                {relativeTime}
+              </p>
+            </div>
+          </button>
+        </ContextMenuTrigger>
+
+        <ContextMenuContent>
+          <ContextMenuItem onClick={handleDuplicate}>
+            <Copy className="size-4" />
+            Duplicate
+          </ContextMenuItem>
+          <ContextMenuSeparator />
+          <ContextMenuItem
+            variant="destructive"
+            onClick={() => setConfirmDelete(true)}
+          >
+            <Trash2 className="size-4" />
+            Delete
+          </ContextMenuItem>
+        </ContextMenuContent>
+      </ContextMenu>
+
+      {/* Delete confirmation dialog */}
+      <Dialog open={confirmDelete} onOpenChange={setConfirmDelete}>
+        <DialogContent className="bg-pylon-surface sm:max-w-sm">
+          <DialogHeader>
+            <DialogTitle className="font-heading text-pylon-text">
+              Delete Board
+            </DialogTitle>
+            <DialogDescription className="text-pylon-text-secondary">
+              Are you sure you want to delete &ldquo;{board.title}&rdquo;? This
+              action cannot be undone.
+            </DialogDescription>
+          </DialogHeader>
+          <DialogFooter>
+            <Button
+              variant="ghost"
+              onClick={() => setConfirmDelete(false)}
+              className="text-pylon-text-secondary"
+            >
+              Cancel
+            </Button>
+            <Button variant="destructive" onClick={handleDelete}>
+              Delete
+            </Button>
+          </DialogFooter>
+        </DialogContent>
+      </Dialog>
+    </>
+  );
+}

src/components/boards/BoardList.tsx

@@ -0,0 +1,54 @@
+import { useState } from "react";
+import { Plus } from "lucide-react";
+import { Button } from "@/components/ui/button";
+import { useAppStore } from "@/stores/app-store";
+import { BoardCard } from "@/components/boards/BoardCard";
+import { NewBoardDialog } from "@/components/boards/NewBoardDialog";
+
+export function BoardList() {
+  const boards = useAppStore((s) => s.boards);
+  const [dialogOpen, setDialogOpen] = useState(false);
+
+  if (boards.length === 0) {
+    return (
+      <>
+        <div className="flex h-full flex-col items-center justify-center gap-4">
+          <p className="font-mono text-sm text-pylon-text-secondary">
+            Create your first board
+          </p>
+          <Button onClick={() => setDialogOpen(true)}>
+            <Plus className="size-4" />
+            New Board
+          </Button>
+        </div>
+        <NewBoardDialog open={dialogOpen} onOpenChange={setDialogOpen} />
+      </>
+    );
+  }
+
+  return (
+    <>
+      <div className="h-full overflow-y-auto p-6">
+        {/* Heading row */}
+        <div className="mb-4 flex items-center justify-between">
+          <h2 className="font-mono text-xs font-semibold uppercase tracking-widest text-pylon-text-secondary">
+            Your Boards
+          </h2>
+          <Button size="sm" onClick={() => setDialogOpen(true)}>
+            <Plus className="size-4" />
+            New
+          </Button>
+        </div>
+
+        {/* Board grid */}
+        <div className="grid grid-cols-1 gap-4 sm:grid-cols-2 lg:grid-cols-3 xl:grid-cols-4">
+          {boards.map((board) => (
+            <BoardCard key={board.id} board={board} />
+          ))}
+        </div>
+      </div>
+
+      <NewBoardDialog open={dialogOpen} onOpenChange={setDialogOpen} />
+    </>
+  );
+}

src/components/boards/NewBoardDialog.tsx

@@ -0,0 +1,173 @@
+import { useState } from "react";
+import {
+  Dialog,
+  DialogContent,
+  DialogHeader,
+  DialogTitle,
+  DialogDescription,
+  DialogFooter,
+} from "@/components/ui/dialog";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { createBoard } from "@/lib/board-factory";
+import { saveBoard } from "@/lib/storage";
+import { useAppStore } from "@/stores/app-store";
+import { useBoardStore } from "@/stores/board-store";
+
+const PRESET_COLORS = [
+  "#6366f1", // indigo
+  "#8b5cf6", // violet
+  "#ec4899", // pink
+  "#f43f5e", // rose
+  "#f97316", // orange
+  "#eab308", // yellow
+  "#22c55e", // green
+  "#06b6d4", // cyan
+];
+
+type Template = "blank" | "kanban" | "sprint";
+
+interface NewBoardDialogProps {
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+}
+
+export function NewBoardDialog({ open, onOpenChange }: NewBoardDialogProps) {
+  const [title, setTitle] = useState("");
+  const [color, setColor] = useState(PRESET_COLORS[0]);
+  const [template, setTemplate] = useState<Template>("blank");
+  const [creating, setCreating] = useState(false);
+
+  const refreshBoards = useAppStore((s) => s.refreshBoards);
+  const setView = useAppStore((s) => s.setView);
+  const addRecentBoard = useAppStore((s) => s.addRecentBoard);
+  const openBoard = useBoardStore((s) => s.openBoard);
+
+  async function handleCreate() {
+    const trimmed = title.trim();
+    if (!trimmed || creating) return;
+
+    setCreating(true);
+    try {
+      const board = createBoard(trimmed, color, template);
+      await saveBoard(board);
+      await refreshBoards();
+      await openBoard(board.id);
+      setView({ type: "board", boardId: board.id });
+      addRecentBoard(board.id);
+      onOpenChange(false);
+      resetForm();
+    } finally {
+      setCreating(false);
+    }
+  }
+
+  function resetForm() {
+    setTitle("");
+    setColor(PRESET_COLORS[0]);
+    setTemplate("blank");
+  }
+
+  function handleKeyDown(e: React.KeyboardEvent) {
+    if (e.key === "Enter" && title.trim()) {
+      handleCreate();
+    }
+  }
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent className="bg-pylon-surface sm:max-w-md">
+        <DialogHeader>
+          <DialogTitle className="font-heading text-pylon-text">
+            New Board
+          </DialogTitle>
+          <DialogDescription className="text-pylon-text-secondary">
+            Create a new board to organize your work.
+          </DialogDescription>
+        </DialogHeader>
+
+        <div className="flex flex-col gap-4">
+          {/* Title input */}
+          <div>
+            <label
+              htmlFor="board-title"
+              className="mb-1.5 block font-mono text-xs uppercase tracking-widest text-pylon-text-secondary"
+            >
+              Title
+            </label>
+            <Input
+              id="board-title"
+              placeholder="My Board"
+              value={title}
+              onChange={(e) => setTitle(e.target.value)}
+              onKeyDown={handleKeyDown}
+              autoFocus
+              className="bg-pylon-bg text-pylon-text"
+            />
+          </div>
+
+          {/* Color picker */}
+          <div>
+            <label className="mb-1.5 block font-mono text-xs uppercase tracking-widest text-pylon-text-secondary">
+              Color
+            </label>
+            <div className="flex gap-2">
+              {PRESET_COLORS.map((c) => (
+                <button
+                  key={c}
+                  type="button"
+                  onClick={() => setColor(c)}
+                  className="size-8 rounded-full transition-transform hover:scale-110"
+                  style={{
+                    backgroundColor: c,
+                    outline:
+                      color === c ? "2px solid currentColor" : "none",
+                    outlineOffset: "2px",
+                  }}
+                  aria-label={`Color ${c}`}
+                />
+              ))}
+            </div>
+          </div>
+
+          {/* Template selector */}
+          <div>
+            <label className="mb-1.5 block font-mono text-xs uppercase tracking-widest text-pylon-text-secondary">
+              Template
+            </label>
+            <div className="flex gap-2">
+              {(["blank", "kanban", "sprint"] as const).map((t) => (
+                <Button
+                  key={t}
+                  type="button"
+                  variant={template === t ? "default" : "outline"}
+                  size="sm"
+                  onClick={() => setTemplate(t)}
+                  className="capitalize"
+                >
+                  {t}
+                </Button>
+              ))}
+            </div>
+          </div>
+        </div>
+
+        <DialogFooter>
+          <Button
+            variant="ghost"
+            onClick={() => onOpenChange(false)}
+            className="text-pylon-text-secondary"
+          >
+            Cancel
+          </Button>
+          <Button
+            onClick={handleCreate}
+            disabled={!title.trim() || creating}
+          >
+            Create
+          </Button>
+        </DialogFooter>
+      </DialogContent>
+    </Dialog>
+  );
+}