chore(template): clean-slate template snapshot from bb4a0c7

Curated, product-agnostic snapshot of the post-story-04 tree: demo
content deleted, auth-only reference feature, web-next shell, all gates
green. Product-specific docs, ADRs 027-029, PRDs/epics/archive, editor
library traces, and product naming are curated out; generic template
repairs (coverage provider devDeps, root test:coverage script, live
lint fixes, root-only release-please) are kept. See TEMPLATE.md for
provenance, curation list, and usage.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016j8z4VHjedXDTjEDNg7qHK

apps/storybook/.storybook/css.d.ts

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+declare module "*.css";

apps/storybook/.storybook/main.ts

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+import type { StorybookConfig } from "@storybook/react-vite";
+
+const config: StorybookConfig = {
+  framework: "@storybook/react-vite",
+  stories: ["../../../packages/core-ui/src/**/*.stories.@(ts|tsx)"],
+  addons: ["@storybook/addon-essentials"],
+  docs: {
+    autodocs: "tag",
+  },
+  async viteFinal(config) {
+    const tailwindPlugin = await import("@tailwindcss/vite");
+    config.plugins = [tailwindPlugin.default(), ...(config.plugins || [])];
+    return config;
+  },
+};
+
+export default config;

apps/storybook/.storybook/preview.ts

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+import "./storybook.css";
+import type { Preview } from "@storybook/react";
+
+const preview: Preview = {
+  parameters: {
+    controls: {
+      matchers: {
+        color: /(background|color)$/i,
+        date: /Date$/i,
+      },
+    },
+  },
+};
+
+export default preview;

apps/storybook/.storybook/storybook.css

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+@import "tailwindcss";
+@source "../../../packages/core-ui/src";
+
+@import "../../../packages/core-ui/src/styles/theme.css";