Rename all 1,169 components to path-based names with namespace support

Component names now reflect filesystem location using / as path separator
and : as namespace separator for shared components:
  ~sx-header → ~layouts/header
  ~layout-app-body → ~shared:layout/app-body
  ~blog-admin-dashboard → ~admin/dashboard

209 files, 4,941 replacements across all services.

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

events/sx/handlers/container-nav.sx

@@ -53,7 +53,7 @@
                                  (if (get entry "end_at")
                                    (str " – " (format-date (get entry "end_at") "%H:%M"))
                                    ""))))
-              (~calendar-entry-nav
+              (~shared:navigation/calendar-entry-nav
                 :href (app-url "events" entry-path)
                 :name (get entry "name")
                 :date-str date-str
@@ -61,7 +61,7 @@
 
           ;; Infinite scroll sentinel
           (when (and has-more (not (empty? purl)))
-            (~htmx-sentinel
+            (~shared:misc/htmx-sentinel
               :id (str "entries-load-sentinel-" pg)
               :hx-get (str purl "?page=" (+ pg 1))
               :hx-trigger "intersect once"
@@ -74,7 +74,7 @@
                   (is-selected (if (not (empty? cur-cal))
                                  (= (get cal "slug") cur-cal)
                                  false)))
-              (~calendar-link-nav
+              (~shared:navigation/calendar-link-nav
                 :href href
                 :name (get cal "name")
                 :nav-class nav-class