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/src/lib/links.ts

@@ -0,0 +1,19 @@
+/** External links and language-independent constants used across the landing page. */
+
+export const REPO_URL = "https://github.com/Prism-Shadow/penguin-harness";
+export const RELEASES_URL = `${REPO_URL}/releases`;
+export const LICENSE_URL = `${REPO_URL}/blob/main/LICENSE`;
+
+/**
+ * Docs site: a sibling SPA deployed under the landing page's own base ("/<repo>/docs/",
+ * see scripts/build-site.mjs). A plain href — it is a separate app, not a router route.
+ * In local dev this resolves to "/docs/", which only exists in the assembled build.
+ */
+export const DOCS_URL = `${import.meta.env.BASE_URL}docs/`;
+
+/** One-line installer (Linux / macOS, x64 / arm64, bundled Node runtime). */
+export const INSTALL_CMD = `curl -fsSL ${REPO_URL}/releases/latest/download/install.sh | sh`;
+
+/** API key consoles (same URLs the in-app Models page links to). */
+export const DEEPSEEK_KEYS_URL = "https://platform.deepseek.com/api_keys";
+export const OPENROUTER_KEYS_URL = "https://openrouter.ai/workspaces/default/keys";