feat(chrome)!: v0.4.0 — AdminShell + headers as /chrome sub-export

New `./chrome` entrypoint exporting `<AdminShell>` and the header
components (Search, SearchHistory, SearchOptions, Messages, BrowseApps,
HeaderCustomers, HeaderContacts, LogoutButton). Refactored from the
Chronos-style AdminShell that gscCRM was vendoring byte-for-byte —
header/footer/sidebar are now a single shared surface across apps.

Explicit props contract (no site-informations.json, no internal data
sources): `menus`, `apps`, `user`, `brand` are required; `features.*`
flags gate every section (search/browseApps/messages/notifications/
subbar*/pageHeader*/activityPanel/chat/footer); `slots.*` lets apps
inject content; `labels` overrides the next-intl "chrome" namespace.

Locale-aware navigation: chrome calls useLocale() and prepends
/{locale} to internal menu URLs, leaving externals (http(s)://…) and
the "#" sentinel alone. Breadcrumbs and the path-derived page title
strip the leading locale segment so they read "Contacts" not
"En › Contacts". Necessary for `localePrefix: 'always'` consumers like
gscCRM.

Phosphor 2.x icons: `normalizeIconClass` prepends the base `ph` class
(compound selectors `.ph.ph-house:before` require both). All hardcoded
`<i className="ph-…">` sites switched to `ph ph-…`.

`next-intl` and `next-auth` moved to peerDependencies (with devDep
copies for the kit's own typecheck/build). Consumers must symlink their
installed copies into the kit's node_modules at build time — otherwise
useTranslations()/useSession() bind to a separate React context and
next-intl throws Error(void 0) on render.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

package.json

@@ -1,12 +1,16 @@
 {
   "name": "@gsc/web-kit",
-  "version": "0.3.0",
-  "description": "GSC web app skeleton \u2014 layout, auth, data, forms, feedback, navigation. Built on @limitless/ui. Drop into a Next.js app and just write pages.",
+  "version": "0.4.0",
+  "description": "GSC web app skeleton — layout, auth, data, forms, feedback, navigation, chrome. Built on @limitless/ui. Drop into a Next.js app and just write pages.",
   "license": "MIT",
   "type": "module",
   "main": "dist/index.js",
   "module": "dist/index.js",
   "types": "dist/index.d.ts",
+  "files": [
+    "dist",
+    "migrations"
+  ],
   "exports": {
     ".": {
       "types": "./dist/index.d.ts",
@@ -37,6 +41,10 @@
       "types": "./dist/shell/server.d.ts",
       "import": "./dist/shell/server.js"
     },
+    "./chrome": {
+      "types": "./dist/chrome/index.d.ts",
+      "import": "./dist/chrome/index.js"
+    },
     "./data": {
       "types": "./dist/data/index.d.ts",
       "import": "./dist/data/index.js"
@@ -60,7 +68,10 @@
     "./utils": {
       "types": "./dist/utils/index.d.ts",
       "import": "./dist/utils/index.js"
-    }
+    },
+    "./migrations/nav-schema.up.sql": "./migrations/nav-schema.up.sql",
+    "./migrations/nav-apps-seed.up.sql": "./migrations/nav-apps-seed.up.sql",
+    "./migrations/nav-menu-items-template.sql": "./migrations/nav-menu-items-template.sql"
   },
   "sideEffects": [
     "**/*.css"
@@ -72,24 +83,28 @@
   },
   "dependencies": {
     "@limitless/ui": "file:../limitless-ui",
-    "next-auth": "^5.0.0-beta.25",
-    "next-intl": "^4.6.1",
     "zod": "^3.23.0"
   },
   "peerDependencies": {
+    "@gsc/chat": "*",
     "bootstrap": "^5.3.3",
     "next": ">=15.0.0",
+    "next-auth": "^5.0.0-beta.25",
+    "next-intl": "^4.6.0",
     "react": "^18.2.0 || ^19.0.0",
     "react-dom": "^18.2.0 || ^19.0.0"
   },
   "peerDependenciesMeta": {
-    "bootstrap": { "optional": true }
+    "bootstrap": { "optional": true },
+    "@gsc/chat": { "optional": true }
   },
   "devDependencies": {
     "@types/node": "^20.11.0",
     "@types/react": "^19.0.0",
     "@types/react-dom": "^19.0.0",
     "next": "16.1.1",
+    "next-auth": "^5.0.0-beta.25",
+    "next-intl": "^4.6.1",
     "typescript": "^5.4.0"
   }
-}
+}