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>

shared/sx/tests/test_router.py

@@ -224,7 +224,7 @@ class TestBuildPagesSx:
         from shared.sx.helpers import _sx_literal
         from shared.sx.parser import parse_all
 
-        content = '(~doc-page :title "Hello \\"World\\"")'
+        content = '(~docs/page :title "Hello \\"World\\"")'
         entry = (
             "{:name " + _sx_literal("test")
             + " :content " + _sx_literal(content)