Add Bootstrappers section, essays index, specs prose, layout fixes

- New Bootstrappers top-level section with overview index and JS bootstrapper
  page that runs bootstrap_js.py and displays both source and generated output
  with live script injection (full page load, not SX navigation)
- Essays section: index page with linked cards and summaries, sx-sucks moved
  to end of nav, removed "grand tradition" line
- Specs: English prose descriptions alongside all canonical .sx specs, added
  Boot/CSSX/Browser spec files to architecture page
- Layout: menu bar nav items wrap instead of overflow, baseline alignment
  between label and nav options
- Homepage: added copyright line

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

sx/sxc/pages/docs.sx

@@ -214,10 +214,10 @@
   :layout (:sx-section
     :section "Essays"
     :sub-label "Essays"
-    :sub-href "/essays/sx-sucks"
-    :sub-nav (~section-nav :items essays-nav-items :current "sx sucks")
-    :selected "sx sucks")
-  :content (~essay-sx-sucks))
+    :sub-href "/essays/"
+    :sub-nav (~section-nav :items essays-nav-items :current "")
+    :selected "")
+  :content (~essays-index-content))
 
 (defpage essay-page
   :path "/essays/<slug>"
@@ -225,7 +225,7 @@
   :layout (:sx-section
     :section "Essays"
     :sub-label "Essays"
-    :sub-href "/essays/sx-sucks"
+    :sub-href "/essays/"
     :sub-nav (~section-nav :items essays-nav-items
                :current (find-current essays-nav-items slug))
     :selected (or (find-current essays-nav-items slug) ""))
@@ -241,7 +241,7 @@
     "continuations" (~essay-continuations)
     "godel-escher-bach" (~essay-godel-escher-bach)
     "reflexive-web" (~essay-reflexive-web)
-    :else (~essay-sx-sucks)))
+    :else (~essays-index-content)))
 
 ;; ---------------------------------------------------------------------------
 ;; Specs section
@@ -273,6 +273,7 @@
       :spec-title "Core Language"
       :spec-files (map (fn (item)
         (dict :title (get item "title") :desc (get item "desc")
+              :prose (get item "prose")
               :filename (get item "filename") :href (str "/specs/" (get item "slug"))
               :source (read-spec-file (get item "filename"))))
         core-spec-items))
@@ -280,14 +281,56 @@
       :spec-title "Adapters & Engine"
       :spec-files (map (fn (item)
         (dict :title (get item "title") :desc (get item "desc")
+              :prose (get item "prose")
               :filename (get item "filename") :href (str "/specs/" (get item "slug"))
               :source (read-spec-file (get item "filename"))))
         adapter-spec-items))
+    "browser" (~spec-overview-content
+      :spec-title "Browser"
+      :spec-files (map (fn (item)
+        (dict :title (get item "title") :desc (get item "desc")
+              :prose (get item "prose")
+              :filename (get item "filename") :href (str "/specs/" (get item "slug"))
+              :source (read-spec-file (get item "filename"))))
+        browser-spec-items))
     :else (let ((spec (find-spec slug)))
       (if spec
         (~spec-detail-content
           :spec-title (get spec "title")
           :spec-desc (get spec "desc")
           :spec-filename (get spec "filename")
-          :spec-source (read-spec-file (get spec "filename")))
+          :spec-source (read-spec-file (get spec "filename"))
+          :spec-prose (get spec "prose"))
         (~spec-not-found :slug slug)))))
+
+;; ---------------------------------------------------------------------------
+;; Bootstrappers section
+;; ---------------------------------------------------------------------------
+
+(defpage bootstrappers-index
+  :path "/bootstrappers/"
+  :auth :public
+  :layout (:sx-section
+    :section "Bootstrappers"
+    :sub-label "Bootstrappers"
+    :sub-href "/bootstrappers/"
+    :sub-nav (~section-nav :items bootstrappers-nav-items :current "Overview")
+    :selected "Overview")
+  :content (~bootstrappers-index-content))
+
+(defpage bootstrapper-page
+  :path "/bootstrappers/<slug>"
+  :auth :public
+  :layout (:sx-section
+    :section "Bootstrappers"
+    :sub-label "Bootstrappers"
+    :sub-href "/bootstrappers/"
+    :sub-nav (~section-nav :items bootstrappers-nav-items
+               :current (find-current bootstrappers-nav-items slug))
+    :selected (or (find-current bootstrappers-nav-items slug) ""))
+  :data (bootstrapper-data slug)
+  :content (if bootstrapper-not-found
+    (~spec-not-found :slug slug)
+    (~bootstrapper-js-content
+      :bootstrapper-source bootstrapper-source
+      :bootstrapped-output bootstrapped-output)))