React 19 modernization: forwardRef removal, Compiler, ErrorBoundary, Suspense, native <script>

Adopt React 19 idioms across the codebase. The runtime was already on
react@19.2.5 but no React 19 APIs were in use.

- forwardRef -> ref-as-prop in 7 layout/component files
  (NitroInput/Button/ItemCountBadge/Card×5/InfiniteGridItem,
  ToolbarItemView, AvatarEditorIcon)
- <Ctx.Provider> -> <Ctx> in 6 contexts (CatalogAdmin, FloorplanEditor,
  UiSettings, GridContext, NitroCardContext, NitroCardAccordionContext)
- Native <script> hoisting for Turnstile, ExternalPluginLoader, GoogleAdsView
  (React 19 dedupes by src; removes manual document.head.appendChild +
  module-level promise caches)
- React Compiler enabled at build time via babel-plugin-react-compiler
  in vite.config.mjs (target: '19'), plus eslint-plugin-react-compiler
  in lint mode
- Global <ErrorBoundary> + <Suspense> in src/index.tsx using
  react-error-boundary, with LoadingView as fallback
- BackgroundsView migrated to use(promise) as a demonstrator pattern
  for Suspense-driven config loading
- ESLint react setting bumped 18.3.1 -> 19.2; legacy
  @typescript-eslint/ban-types replaced with no-restricted-types
  (the old rule was removed in @typescript-eslint v8)
- Refresh public/configuration/{asset-loader,bootstrap}.js to match
  current write-asset-loader.mjs output

Phase 3 (login forms -> useActionState/useFormStatus) deferred:
LoginView is 1623 lines with lockout + Turnstile + heartbeat
interleaving; safer as its own PR.

https://claude.ai/code/session_01GrR87LAqnAEyKG2ZbmQt5Q

yarn.lock

@@ -53,6 +53,13 @@
     "@jridgewell/trace-mapping" "^0.3.28"
     jsesc "^3.0.2"
 
+"@babel/helper-annotate-as-pure@^7.27.3":
+  version "7.27.3"
+  resolved "https://registry.yarnpkg.com/@babel/helper-annotate-as-pure/-/helper-annotate-as-pure-7.27.3.tgz#f31fd86b915fc4daf1f3ac6976c59be7084ed9c5"
+  integrity sha512-fXSwMQqitTGeHLBC08Eq5yXz2m37E4pJX1qAU1+2cNedz/ifv/bVXft90VeSav5nFO61EcNgwr0aJxbyPaWBPg==
+  dependencies:
+    "@babel/types" "^7.27.3"
+
 "@babel/helper-compilation-targets@^7.28.6":
   version "7.28.6"
   resolved "https://registry.yarnpkg.com/@babel/helper-compilation-targets/-/helper-compilation-targets-7.28.6.tgz#32c4a3f41f12ed1532179b108a4d746e105c2b25"
@@ -64,11 +71,32 @@
     lru-cache "^5.1.1"
     semver "^6.3.1"
 
+"@babel/helper-create-class-features-plugin@^7.18.6":
+  version "7.29.3"
+  resolved "https://registry.yarnpkg.com/@babel/helper-create-class-features-plugin/-/helper-create-class-features-plugin-7.29.3.tgz#67328947d956f06fc7b48def269bf0489155fd42"
+  integrity sha512-RpLYy2sb51oNLjuu1iD3bwBqCBWUzjO0ocp+iaCP/lJtb2CPLcnC2Fftw+4sAzaMELGeWTgExSKADbdo0GFVzA==
+  dependencies:
+    "@babel/helper-annotate-as-pure" "^7.27.3"
+    "@babel/helper-member-expression-to-functions" "^7.28.5"
+    "@babel/helper-optimise-call-expression" "^7.27.1"
+    "@babel/helper-replace-supers" "^7.28.6"
+    "@babel/helper-skip-transparent-expression-wrappers" "^7.27.1"
+    "@babel/traverse" "^7.29.0"
+    semver "^6.3.1"
+
 "@babel/helper-globals@^7.28.0":
   version "7.28.0"
   resolved "https://registry.yarnpkg.com/@babel/helper-globals/-/helper-globals-7.28.0.tgz#b9430df2aa4e17bc28665eadeae8aa1d985e6674"
   integrity sha512-+W6cISkXFa1jXsDEdYA8HeevQT/FULhxzR99pxphltZcVaugps53THCeiWA8SguxxpSp3gKPiuYfSWopkLQ4hw==
 
+"@babel/helper-member-expression-to-functions@^7.28.5":
+  version "7.28.5"
+  resolved "https://registry.yarnpkg.com/@babel/helper-member-expression-to-functions/-/helper-member-expression-to-functions-7.28.5.tgz#f3e07a10be37ed7a63461c63e6929575945a6150"
+  integrity sha512-cwM7SBRZcPCLgl8a7cY0soT1SptSzAlMH39vwiRpOQkJlh53r5hdHwLSCZpQdVLT39sZt+CRpNwYG4Y2v77atg==
+  dependencies:
+    "@babel/traverse" "^7.28.5"
+    "@babel/types" "^7.28.5"
+
 "@babel/helper-module-imports@^7.28.6":
   version "7.28.6"
   resolved "https://registry.yarnpkg.com/@babel/helper-module-imports/-/helper-module-imports-7.28.6.tgz#60632cbd6ffb70b22823187201116762a03e2d5c"
@@ -86,6 +114,35 @@
     "@babel/helper-validator-identifier" "^7.28.5"
     "@babel/traverse" "^7.28.6"
 
+"@babel/helper-optimise-call-expression@^7.27.1":
+  version "7.27.1"
+  resolved "https://registry.yarnpkg.com/@babel/helper-optimise-call-expression/-/helper-optimise-call-expression-7.27.1.tgz#c65221b61a643f3e62705e5dd2b5f115e35f9200"
+  integrity sha512-URMGH08NzYFhubNSGJrpUEphGKQwMQYBySzat5cAByY1/YgIRkULnIy3tAMeszlL/so2HbeilYloUmSpd7GdVw==
+  dependencies:
+    "@babel/types" "^7.27.1"
+
+"@babel/helper-plugin-utils@^7.18.6":
+  version "7.28.6"
+  resolved "https://registry.yarnpkg.com/@babel/helper-plugin-utils/-/helper-plugin-utils-7.28.6.tgz#6f13ea251b68c8532e985fd532f28741a8af9ac8"
+  integrity sha512-S9gzZ/bz83GRysI7gAD4wPT/AI3uCnY+9xn+Mx/KPs2JwHJIz1W8PZkg2cqyt3RNOBM8ejcXhV6y8Og7ly/Dug==
+
+"@babel/helper-replace-supers@^7.28.6":
+  version "7.28.6"
+  resolved "https://registry.yarnpkg.com/@babel/helper-replace-supers/-/helper-replace-supers-7.28.6.tgz#94aa9a1d7423a00aead3f204f78834ce7d53fe44"
+  integrity sha512-mq8e+laIk94/yFec3DxSjCRD2Z0TAjhVbEJY3UQrlwVo15Lmt7C2wAUbK4bjnTs4APkwsYLTahXRraQXhb1WCg==
+  dependencies:
+    "@babel/helper-member-expression-to-functions" "^7.28.5"
+    "@babel/helper-optimise-call-expression" "^7.27.1"
+    "@babel/traverse" "^7.28.6"
+
+"@babel/helper-skip-transparent-expression-wrappers@^7.27.1":
+  version "7.27.1"
+  resolved "https://registry.yarnpkg.com/@babel/helper-skip-transparent-expression-wrappers/-/helper-skip-transparent-expression-wrappers-7.27.1.tgz#62bb91b3abba8c7f1fec0252d9dbea11b3ee7a56"
+  integrity sha512-Tub4ZKEXqbPjXgWLl2+3JpQAYBJ8+ikpQ2Ocj/q/r0LwE3UhENh7EUabyHjz2kCEsrRY83ew2DQdHluuiDQFzg==
+  dependencies:
+    "@babel/traverse" "^7.27.1"
+    "@babel/types" "^7.27.1"
+
 "@babel/helper-string-parser@^7.27.1":
   version "7.27.1"
   resolved "https://registry.yarnpkg.com/@babel/helper-string-parser/-/helper-string-parser-7.27.1.tgz#54da796097ab19ce67ed9f88b47bb2ec49367687"
@@ -116,6 +173,14 @@
   dependencies:
     "@babel/types" "^7.29.0"
 
+"@babel/plugin-proposal-private-methods@^7.18.6":
+  version "7.18.6"
+  resolved "https://registry.yarnpkg.com/@babel/plugin-proposal-private-methods/-/plugin-proposal-private-methods-7.18.6.tgz#5209de7d213457548a98436fa2882f52f4be6bea"
+  integrity sha512-nutsvktDItsNn4rpGItSNV2sz1XwS+nfU0Rg8aCx3W3NOKVzdMjJRu0O5OkgDp3ZGICSTbgRpxZoWsxoKRvbeA==
+  dependencies:
+    "@babel/helper-create-class-features-plugin" "^7.18.6"
+    "@babel/helper-plugin-utils" "^7.18.6"
+
 "@babel/runtime@^7.29.2":
   version "7.29.2"
   resolved "https://registry.yarnpkg.com/@babel/runtime/-/runtime-7.29.2.tgz#9a6e2d05f4b6692e1801cd4fb176ad823930ed5e"
@@ -130,7 +195,7 @@
     "@babel/parser" "^7.28.6"
     "@babel/types" "^7.28.6"
 
-"@babel/traverse@^7.28.6", "@babel/traverse@^7.29.0":
+"@babel/traverse@^7.27.1", "@babel/traverse@^7.28.5", "@babel/traverse@^7.28.6", "@babel/traverse@^7.29.0":
   version "7.29.0"
   resolved "https://registry.yarnpkg.com/@babel/traverse/-/traverse-7.29.0.tgz#f323d05001440253eead3c9c858adbe00b90310a"
   integrity sha512-4HPiQr0X7+waHfyXPZpWPfWL/J7dcN1mx9gL6WdQVMbPnF3+ZhSMs8tCxN7oHddJE9fhNE7+lxdnlyemKfJRuA==
@@ -143,7 +208,7 @@
     "@babel/types" "^7.29.0"
     debug "^4.3.1"
 
-"@babel/types@^7.28.6", "@babel/types@^7.29.0":
+"@babel/types@^7.26.0", "@babel/types@^7.27.1", "@babel/types@^7.27.3", "@babel/types@^7.28.5", "@babel/types@^7.28.6", "@babel/types@^7.29.0":
   version "7.29.0"
   resolved "https://registry.yarnpkg.com/@babel/types/-/types-7.29.0.tgz#9f5b1e838c446e72cf3cd4b918152b8c605e37c7"
   integrity sha512-LwdZHpScM4Qz8Xw2iKSzS+cfglZzJGvofQICy7W7v4caru4EaAmyUuO6BGrbyQ2mYV11W0U8j5mBhd14dd3B0A==
@@ -1121,6 +1186,13 @@ available-typed-arrays@^1.0.7:
   dependencies:
     possible-typed-array-names "^1.0.0"
 
+babel-plugin-react-compiler@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/babel-plugin-react-compiler/-/babel-plugin-react-compiler-1.0.0.tgz#bdf7360a23a4d5ebfca090255da3893efd07425f"
+  integrity sha512-Ixm8tFfoKKIPYdCCKYTsqv+Fd4IJ0DQqMyEimo+pxUOMUR9cVPlwTrFt9Avu+3cb6Zp3mAzl+t1MrG2fxxKsxw==
+  dependencies:
+    "@babel/types" "^7.26.0"
+
 balanced-match@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.2.tgz#e83e3a7e3f300b34cb9d87f615fa0cbf357690ee"
@@ -1482,6 +1554,18 @@ escape-string-regexp@^4.0.0:
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-4.0.0.tgz#14ba83a5d373e3d311e5afca29cf5bfad965bf34"
   integrity sha512-TtpcNJ3XAzx3Gq8sWRzJaVajRs0uVxA2YAkdb1jm2YkPz4G6egUFAyA3n5vtEIZefPk5Wa4UXbKuS5fKkJWdgA==
 
+eslint-plugin-react-compiler@19.1.0-rc.2:
+  version "19.1.0-rc.2"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-react-compiler/-/eslint-plugin-react-compiler-19.1.0-rc.2.tgz#83343e7422e00fa61e729af8e8468f0ddec37925"
+  integrity sha512-oKalwDGcD+RX9mf3NEO4zOoUMeLvjSvcbbEOpquzmzqEEM2MQdp7/FY/Hx9NzmUwFzH1W9SKTz5fihfMldpEYw==
+  dependencies:
+    "@babel/core" "^7.24.4"
+    "@babel/parser" "^7.24.4"
+    "@babel/plugin-proposal-private-methods" "^7.18.6"
+    hermes-parser "^0.25.1"
+    zod "^3.22.4"
+    zod-validation-error "^3.0.3"
+
 eslint-plugin-react-hooks@^7.1.1:
   version "7.1.1"
   resolved "https://registry.yarnpkg.com/eslint-plugin-react-hooks/-/eslint-plugin-react-hooks-7.1.1.tgz#e6742cad75d970c0a3f30d7d3fa80a4784f55927"
@@ -2464,6 +2548,11 @@ react-dom@^19.2.5:
   dependencies:
     scheduler "^0.27.0"
 
+react-error-boundary@^6.1.1:
+  version "6.1.1"
+  resolved "https://registry.yarnpkg.com/react-error-boundary/-/react-error-boundary-6.1.1.tgz#491d655e86c32434ede852755bb649119fdddd89"
+  integrity sha512-BrYwPOdXi5mqkk5lw+Uvt0ThHx32rCt3BkukS4X23A2AIWDPSGX6iaWTc0y9TU/mHDA/6qOSGel+B2ERkOvD1w==
+
 react-fast-compare@^3.0.1:
   version "3.2.2"
   resolved "https://registry.yarnpkg.com/react-fast-compare/-/react-fast-compare-3.2.2.tgz#929a97a532304ce9fee4bcae44234f1ce2c21d49"
@@ -3041,11 +3130,21 @@ yocto-queue@^0.1.0:
   resolved "https://registry.yarnpkg.com/yocto-queue/-/yocto-queue-0.1.0.tgz#0294eb3dee05028d31ee1a5fa2c556a6aaf10a1b"
   integrity sha512-rVksvsnNCdJ/ohGc6xgPwyN8eheCxsiLM8mxuE/t/mOVqJewPuO1miLpTHQiRgTKCLexL4MeAFVagts7HmNZ2Q==
 
+zod-validation-error@^3.0.3:
+  version "3.5.4"
+  resolved "https://registry.yarnpkg.com/zod-validation-error/-/zod-validation-error-3.5.4.tgz#9072f829e4b45b9e27317c3002408c0c4cdd2bb4"
+  integrity sha512-+hEiRIiPobgyuFlEojnqjJnhFvg4r/i3cqgcm67eehZf/WBaK3g6cD02YU9mtdVxZjv8CzCA9n/Rhrs3yAAvAw==
+
 "zod-validation-error@^3.5.0 || ^4.0.0":
   version "4.0.2"
   resolved "https://registry.yarnpkg.com/zod-validation-error/-/zod-validation-error-4.0.2.tgz#bc605eba49ce0fcd598c127fee1c236be3f22918"
   integrity sha512-Q6/nZLe6jxuU80qb/4uJ4t5v2VEZ44lzQjPDhYJNztRQ4wyWc6VF3D3Kb/fAuPetZQnhS3hnajCf9CsWesghLQ==
 
+zod@^3.22.4:
+  version "3.25.76"
+  resolved "https://registry.yarnpkg.com/zod/-/zod-3.25.76.tgz#26841c3f6fd22a6a2760e7ccb719179768471e34"
+  integrity sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==
+
 "zod@^3.25.0 || ^4.0.0":
   version "4.4.3"
   resolved "https://registry.yarnpkg.com/zod/-/zod-4.4.3.tgz#b680f172885d18bbebf21a834ea25e55a1bbf356"