FRE-1670: publish /terms and the support address on the Nessa site

nessa.freno.me/terms was a live 404 although AppSettings.termsOfServiceURL
links it from Settings > Legal and the paywall. The document existed only on
an unmerged branch and had no host-dispatch route, so it could not serve on
the subdomain. Carry the Terms of Use page, add the /terms dispatcher, and
publish nessa-support@freno.me on terms, privacy, contact and deletion.

- src/routes/terms.tsx: host-aware dispatch for nessa; other sites 404.
- src/routes/nessa/terms.tsx: the Terms page; its contact section names the
  support address.
- privacy: add the controller clause and the support address.
- contact/deletion: show the support address; deletion also accepts a
  request by email.
- subdomain-dispatch.test.ts: list directories before filtering to .tsx
  files. The old predicate only ever received file names, so it asserted
  over an empty list and missed the missing /terms dispatch.
- support-contact.test.ts: guard that every contact route renders the one
  address the app shows.

App side unchanged: termsOfServiceURL stays https://nessa.freno.me/terms.

src/routes/nessa/privacy.tsx

@@ -30,6 +30,7 @@ import { A } from "@solidjs/router";
 import { PageHead } from "~/components/PageHead";
 import { EdgeCacheHeaders } from "~/components/EdgeCacheHeaders";
 import SubdomainHeader from "~/components/SubdomainHeader";
+import { SUPPORT_EMAIL } from "./content";
 
 export default function NessaPrivacyPolicy() {
   return (
@@ -174,13 +175,27 @@ export default function NessaPrivacyPolicy() {
               <span class="-ml-4 pr-2">5.</span> Contact Us
             </div>
             <div class="pb-2 pl-4">
-              <div class="-ml-6">(a) Reaching Out:</div> If there are any
-              questions or comments regarding this privacy policy, you can
-              contact us{" "}
-              <A href="/contact" class="text-blue hover-underline-animation">
-                here
-              </A>
-              .
+              <div class="-ml-6">(a) Data Controller:</div> Nessa is operated by
+              FrenoCorp. For the purposes of applicable data-protection law,
+              FrenoCorp is the controller of the personal information described
+              in this policy.
+              <div class="pt-2 pb-2">
+                <div class="-ml-6">(b) Reaching Out:</div> If there are any
+                questions or comments regarding this privacy policy, or you want
+                to access, correct, or delete your personal information, you can
+                contact us{" "}
+                <A href="/contact" class="text-blue hover-underline-animation">
+                  through the contact form
+                </A>{" "}
+                or email{" "}
+                <a
+                  href={`mailto:${SUPPORT_EMAIL}`}
+                  class="text-blue hover-underline-animation"
+                >
+                  {SUPPORT_EMAIL}
+                </a>
+                .
+              </div>
             </div>
           </div>
         </ol>