release(v2.0.2): unify component docs, bump theta-directory/proxy/jump-host (#194)

Unifies the GitHub Pages docs site: the SSO/Proxy/Jump Host pages, their
nav labels, and each component's own README now consistently say Theta
Directory / Theta Proxy / Theta Gateway, drop marketing sections ("Why this
over the alternatives", "Get it", "Related projects") that don't apply to a
suite component, remove every standalone/bare-metal install path, and link
to theta42.github.io/theta-suite/... instead of the old per-repo Pages sites.

Bumps submodules: theta-directory v2.0.2, proxy v2.0.1, jump-host v2.0.1.

Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>

docs/proxy/concepts-access.md

@@ -22,7 +22,7 @@ There are two ways someone gets into the proxy's own management UI:
 
 - **A local account**, created on the **Users** page — a username and
   password specific to this app.
-- **Single sign-on**, if you've connected this proxy to an SSO Manager (or
+- **Single sign-on**, if you've connected this proxy to Theta Directory (or
   another OIDC provider) — the same login your other connected apps use.
 
 Either way, once logged in, what they're actually *allowed to do* here is