Em dash removal, nav/form/terms updates

- Replace all em dashes with hyphens site-wide (22 files)
- Add Safety to nav
- Remove Express Interest button from enterprise header (form is the path now)
- Enterprise form: secondary headcount selection shows honest odds message; yes disables submit button
- Terms §5: add network layer indemnification (patent pending 64/036,821); no proprietary names
- Terms §4: Neuron Inference is live now, not Q3 2026

src/viral.el

@@ -1,7 +1,7 @@
-// components/viral.el — Share / referral section.
+// components/viral.el - Share / referral section.
 // Referral link card, invite form (mailto: href, no JS required),
 // copy hooks (links to X/Twitter), and LinkedIn share button.
-// The "Copy" buttons on the hook items are omitted since we have no JS —
+// The "Copy" buttons on the hook items are omitted since we have no JS -
 // the tweet links still work, giving users a way to share.
 
 fn viral() -> String {