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/docs/src/app.tsx

@@ -0,0 +1,20 @@
+/**
+ * App root: Locale -> Theme -> LocaleScope -> Router provider composition, same as
+ * the landing page (LocaleScope remounts the tree keyed by locale so every `S.x`
+ * read reflects the active language).
+ */
+import { LocaleProvider, LocaleScope } from "./state/locale";
+import { ThemeProvider } from "./state/theme";
+import { AppRouter } from "./router";
+
+export function App() {
+  return (
+    <LocaleProvider>
+      <ThemeProvider>
+        <LocaleScope>
+          <AppRouter />
+        </LocaleScope>
+      </ThemeProvider>
+    </LocaleProvider>
+  );
+}