Add missing component and hook tests, raise coverage thresholds

13 new test files for untested components (color-palette, player-management,
stat-block, settings-modal, export/import dialogs, bulk-import-prompt,
source-fetch-prompt, player-character-section) and hooks (use-long-press,
use-swipe-to-dismiss, use-bulk-import, use-initiative-rolls). Expand
combatant-row tests with inline editing, HP popover, and condition picker.

Component coverage: 59% → 80% lines, 55% → 71% branches
Hook coverage: 72% → 83% lines, 55% → 66% branches

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

apps/web/src/components/__tests__/export-method-dialog.test.tsx

@@ -0,0 +1,86 @@
+// @vitest-environment jsdom
+import "@testing-library/jest-dom/vitest";
+
+import { cleanup, render, screen, waitFor } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+import { afterEach, beforeAll, describe, expect, it, vi } from "vitest";
+import { polyfillDialog } from "../../__tests__/polyfill-dialog.js";
+import { ExportMethodDialog } from "../export-method-dialog.js";
+
+afterEach(cleanup);
+
+beforeAll(() => {
+	polyfillDialog();
+});
+
+function renderDialog(open = true) {
+	const onDownload = vi.fn();
+	const onCopyToClipboard = vi.fn();
+	const onClose = vi.fn();
+	const result = render(
+		<ExportMethodDialog
+			open={open}
+			onDownload={onDownload}
+			onCopyToClipboard={onCopyToClipboard}
+			onClose={onClose}
+		/>,
+	);
+	return { ...result, onDownload, onCopyToClipboard, onClose };
+}
+
+describe("ExportMethodDialog", () => {
+	it("renders filename input and unchecked history checkbox", () => {
+		renderDialog();
+		expect(
+			screen.getByPlaceholderText("Filename (optional)"),
+		).toBeInTheDocument();
+		const checkbox = screen.getByRole("checkbox");
+		expect(checkbox).not.toBeChecked();
+	});
+
+	it("download button calls onDownload with defaults", async () => {
+		const user = userEvent.setup();
+		const { onDownload } = renderDialog();
+
+		await user.click(screen.getByText("Download file"));
+		expect(onDownload).toHaveBeenCalledWith(false, "");
+	});
+
+	it("download with filename and history checked", async () => {
+		const user = userEvent.setup();
+		const { onDownload } = renderDialog();
+
+		await user.type(
+			screen.getByPlaceholderText("Filename (optional)"),
+			"my-encounter",
+		);
+		await user.click(screen.getByRole("checkbox"));
+		await user.click(screen.getByText("Download file"));
+		expect(onDownload).toHaveBeenCalledWith(true, "my-encounter");
+	});
+
+	it("copy to clipboard calls onCopyToClipboard and shows Copied", async () => {
+		const user = userEvent.setup();
+		const { onCopyToClipboard } = renderDialog();
+
+		await user.click(screen.getByText("Copy to clipboard"));
+		expect(onCopyToClipboard).toHaveBeenCalledWith(false);
+		expect(screen.getByText("Copied!")).toBeInTheDocument();
+	});
+
+	it("Copied! reverts after 2 seconds", async () => {
+		const user = userEvent.setup();
+		renderDialog();
+
+		await user.click(screen.getByText("Copy to clipboard"));
+		expect(screen.getByText("Copied!")).toBeInTheDocument();
+
+		await waitFor(
+			() => {
+				expect(screen.queryByText("Copied!")).not.toBeInTheDocument();
+			},
+			{ timeout: 3000 },
+		);
+		expect(screen.getByText("Copy to clipboard")).toBeInTheDocument();
+	});
+});