fix(frontend): unbreak dashboard — bundle order, IIFE close, dup const

Three merge-fallout bugs that combined to leave the services grid empty
and most UI inert:

1. error-handler.js was bundled into onboarding.js (loaded 3rd), but
   globals.js in core.js (loaded 1st) does `const errorHandler = new
   ErrorHandler()` at top level. ErrorHandler was undefined when core.js
   ran -> ReferenceError -> globals.js stopped, so window.APPS,
   _showTotpOverlay, loadServices, etc. were never set, and init.js
   blew up on every call into core's exports.

   Moved error-handler.js to the start of the core.js bundle so the
   class is on window before any other script touches it.

2. setup-wizard.js also declared `const errorHandler = new ErrorHandler()`
   at top level. Classic scripts share the document's top-level lexical
   environment, so this collided with globals.js's declaration ->
   redeclaration SyntaxError in features.js. Removed setup-wizard.js's
   copy; it picks up the global one.

3. tooltip-definitions.js closed its `(function(window){...})(window);`
   IIFE at line ~171 ("Validation module loaded"), then the TOOLTIP_
   DEFINITIONS array, getter helpers, window.TooltipDefinitions export,
   and final `debug(...)` log all sat at top level — outside the IIFE,
   where `debug` was no longer in scope. Removed the early close and
   added one at EOF so the whole file is in one IIFE.

status/build.js

@@ -11,6 +11,10 @@ const SW_JS = path.join(__dirname, 'sw.js');
 // Bundle definitions — files are concatenated in order, then minified
 const bundles = {
   'core.js': [
+    // error-handler.js MUST be first — globals.js below does
+    // `const errorHandler = new ErrorHandler()` at top level, which throws
+    // ReferenceError if the ErrorHandler class isn't already on `window`.
+    JS('error-handler.js'),
     JS('globals.js'),
     JS('skeleton-loader.js'),
     JS('theme.js'),
@@ -57,7 +61,8 @@ const bundles = {
   ],
   'onboarding.js': [
     JS('driver.min.js'),
-    JS('error-handler.js'),
+    // error-handler.js moved to core.js bundle; window.ErrorHandler is already
+    // set before this bundle runs.
     JS('progress-tracker.js'),
     JS('theme-adapter.js'),
     JS('tooltip-definitions.js'),