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_io_proxy.py

@@ -74,12 +74,12 @@ class TestIoDepsSerialization:
     def test_multiple_io_deps_collected(self):
         """Multiple distinct IO primitives from different components are unioned."""
         env = make_env(
-            '(defcomp ~nav (&key) (nav (app-url "/")))',
-            '(defcomp ~page (&key) (div (~nav) (config "key")))',
+            '(defcomp ~plans/environment-images/nav (&key) (nav (app-url "/")))',
+            '(defcomp ~page (&key) (div (~plans/environment-images/nav) (config "key")))',
         )
         _compute_all_io_refs_fallback(env, IO_NAMES)
 
-        deps = {"~nav", "~page"}
+        deps = {"~plans/environment-images/nav", "~page"}
         io_deps: set[str] = set()
         for dep_name in deps:
             comp = env.get(dep_name)