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/main.el

@@ -1,4 +1,4 @@
-// main.el — Neuron landing page server.
+// main.el - Neuron landing page server.
 //
 // Serves the Neuron marketing landing page at port 3001.
 // Written in El (the Engram language). Runs on the El VM (elvm).
@@ -7,7 +7,7 @@
 // We generate the page at startup with El components, write it to
 // src/index.html, and set __html_file__ to that path.
 //
-// This means the document is always El-generated — never hand-authored.
+// This means the document is always El-generated - never hand-authored.
 // The El runtime serves it with the correct Content-Type: text/html header.
 //
 // Execution:
@@ -101,7 +101,7 @@ fn read_asset(abs_path: String) -> String {
 // ── Request handler ───────────────────────────────────────────────────────────
 //
 // NOTE: GET / is intercepted by the El HTTP runtime before reaching this
-// function — it serves __html_file__ directly with text/html.
+// function - it serves __html_file__ directly with text/html.
 // This handler covers /api/* and /brand/* routes.
 
 fn handle_request(method: String, path: String, body: String) -> String {
@@ -290,7 +290,7 @@ fn handle_request(method: String, path: String, body: String) -> String {
   <p class=\"label\" style=\"margin-bottom:1.5rem\">You&#39;re in.</p>
   <h1 class=\"display-lg\" style=\"margin-bottom:1.25rem\">Welcome to Neuron.</h1>
   <p style=\"font-family:var(--body);font-weight:300;font-size:1.1rem;color:var(--t2);max-width:28rem;line-height:1.7;margin-bottom:3rem\">
-    Your license is being provisioned. Check your email &#8212; your license key and download instructions will be there in the next few minutes.
+    Your license is being provisioned. Check your email - your license key and download instructions will be there in the next few minutes.
   </p>
   <div style=\"margin-bottom:3rem\">" + badge_html + "</div>
   <a href=\"/\" class=\"btn-primary\">Back to home &#8594;</a>
@@ -352,7 +352,7 @@ state_set("__stripe_price_professional__", stripe_price_professional)
 state_set("__license_api_url__",          license_api_url)
 state_set("__resend_api_key__",           resend_api_key)
 
-println(color_bold("Neuron landing") + " — http://localhost:3001")
+println(color_bold("Neuron landing") + " - http://localhost:3001")
 println("  HTML generated by El → " + html_path)
 println("  About  generated by El → " + about_html_path)
 println("  Terms  generated by El → " + terms_html_path)