Initialize repository with harness code and assets

Initial import of all source code, config, and README assets: the
packages workspace (cli, core, server, web, docs, landing, skills),
build scripts, tooling config, and CI workflows.

Includes the data-layout revision made on this branch: the local data
root defaults to ~/.penguin/data (PENGUIN_HOME still overrides; the
installer keeps its binaries in ~/.penguin), and every Agent lives
under <project>/agents/<agent>/ — path helpers, the three
agent-enumeration scans, the system prompt, built-in Skills, tests
and docs all follow the new layout.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018ihk8iQuo3kv2aPjAYEPuR

packages/landing/vite.config.ts

@@ -0,0 +1,17 @@
+/**
+ * Vite config: static landing page (React SPA + Tailwind CSS 4).
+ *
+ * BASE_PATH is injected by the GitHub Pages workflow (e.g. "/penguin-harness/") so asset
+ * URLs resolve under the project-pages subpath; local dev and previews default to "/".
+ * Blog posts are local Markdown files imported at build time via import.meta.glob (?raw),
+ * so the built site is fully static — no server or CMS involved.
+ */
+import react from "@vitejs/plugin-react";
+import tailwindcss from "@tailwindcss/vite";
+import { defineConfig } from "vite";
+
+export default defineConfig({
+  base: process.env.BASE_PATH ?? "/",
+  plugins: [react(), tailwindcss()],
+  server: { port: 7366 },
+});