Upgrade to pnpm 11 and drop internal/sync-pnpm

.npmrc

@@ -1,27 +1,2 @@
-####################
-# super strict mode
-####################
-auto-install-peers=false
-strict-peer-dependents=true
-resolve-peers-from-workspace-root=false
-
-################
-# Optimizations
-################
-# Less strict, but required for tooling to not barf on duplicate peer trees.
-# (many libraries declare the same peers, which resolve to the same
-#  versions)
-peers-suffix-max-length=40
-dedupe-injected-deps=true
-dedupe-peer-dependents=true
-public-hoist-pattern[]=ember-source
-sync-injected-deps-after-scripts[]=build
-sync-injected-deps-after-scripts[]=sync
-inject-workspace-packages=true
-
-################
-# Compatibility
-################
-# highest is what everyone is used to, but
-# not ensuring folks are actually compatible with declared ranges.
-resolution-mode=highest
+# Registry/auth settings only.
+# pnpm-specific settings live in pnpm-workspace.yaml (required by pnpm 11+).

docs-app/package.json

@@ -21,9 +21,8 @@
     "lint:hbs:fix": "ember-template-lint . --fix --no-error-on-unmatched-pattern",
     "lint:js:fix": "eslint . --fix",
     "lint:types": "ember-tsc --noEmit",
-    "start": "concurrently 'ember serve' 'pnpm sync-pnpm --watch' --names 'docs-app serve,docs-app sync built package'",
-    "test:ember": "ember test",
-    "_syncPnpm": "pnpm sync-pnpm"
+    "start": "ember serve",
+    "test:ember": "ember test"
   },
   "devDependencies": {
     "@babel/core": "^7.23.6",
@@ -78,7 +77,6 @@
     "prettier-plugin-ember-template-tag": "^2.1.3",
     "qunit": "^2.19.1",
     "qunit-dom": "^3.0.0",
-    "sync-pnpm": "workspace:*",
     "tailwindcss": "^3.1.8",
     "typescript": "~6.0.0",
     "webpack": "^5.75.0"

package.json

@@ -34,7 +34,7 @@
     "release-plan": "^0.17.4",
     "turbo": "^1.7.4"
   },
-  "packageManager": "pnpm@10.30.0",
+  "packageManager": "pnpm@11.15.0",
   "engines": {
     "node": "^24.0.0"
   }