fix(build): stop dts emit leaking @commercetools-frontend/ui-kit into published types

The compound components (Constraints, RadioInput, ViewSwitcher) emitted
import("@commercetools-frontend/ui-kit").T...Props in their published .d.ts.
Strict consumers installing only the granular @commercetools-uikit/* packages
don't have the aggregate preset, so the reference resolved to any (TS7006).

Root cause: @commercetools-frontend/ui-kit is a root devDependency (so the
.visualroute/bundlespec fixtures resolve under strict pnpm), which makes the
bare specifier resolvable during preconstruct's declaration emit, and TS prefers
it over the in-package relative path. The build now hides that symlink for the
preconstruct build step only (trap-guarded restore), forcing the correct
relative specifier. No component API or source changed.

Refs: commercetools/identity#757

Author: misama-ct

.changeset/dts-emit-meta-package-leak.md

@@ -0,0 +1,19 @@
+---
+"@commercetools-uikit/constraints": patch
+"@commercetools-uikit/radio-input": patch
+"@commercetools-uikit/view-switcher": patch
+---
+
+fix: stop declaration emit from leaking `@commercetools-frontend/ui-kit` into published types
+
+The compound components (`Constraints`, `RadioInput`, `ViewSwitcher`) emitted
+`import("@commercetools-frontend/ui-kit").T...Props` in their published `.d.ts`.
+Strict consumers that install only the granular `@commercetools-uikit/*`
+packages don't have the aggregate preset, so the reference resolved to `any` —
+collapsing event-handler prop types and producing `TS7006` on a minor upgrade.
+
+The leak was triggered by `@commercetools-frontend/ui-kit` becoming a root
+`devDependency` (so the `.visualroute`/`bundlespec` fixtures resolve under
+strict pnpm), which made the bare specifier resolvable during preconstruct's
+declaration emit. The build now hides that symlink for the emit step only, so
+the correct in-package relative specifier is used. No component API changed.

scripts/build.sh

@@ -6,6 +6,36 @@ pnpm generate-icons
 pnpm design-tokens:build
 pnpm compile-intl
 
+# --- declaration-emit leak workaround (FEC-938) ---
+# `@commercetools-frontend/ui-kit` (the aggregate preset) is a root
+# devDependency because the .visualroute/bundlespec fixtures import it. Under
+# strict pnpm that puts a `node_modules/@commercetools-frontend/ui-kit` symlink
+# in place, and preconstruct's declaration emit then prefers that resolvable
+# bare specifier over the in-package relative path — leaking
+# `import("@commercetools-frontend/ui-kit").T...Props` into the published .d.ts
+# of the compound components (constraints, radio-input, view-switcher). Strict
+# consumers can't resolve it, so those prop types collapse to `any`.
+#
+# preconstruct does not need that symlink (the fixtures aren't part of the dts
+# program), so we hide it during the build to force the correct relative
+# specifier, and restore it afterwards (and on any exit).
+META_SYMLINK="node_modules/@commercetools-frontend/ui-kit"
+META_SYMLINK_TARGET=""
+restore_meta_symlink() {
+  if [ -n "$META_SYMLINK_TARGET" ] && [ ! -e "$META_SYMLINK" ]; then
+    ln -s "$META_SYMLINK_TARGET" "$META_SYMLINK"
+  fi
+}
+if [ -L "$META_SYMLINK" ]; then
+  META_SYMLINK_TARGET="$(readlink "$META_SYMLINK")"
+  trap restore_meta_symlink EXIT
+  rm "$META_SYMLINK"
+fi
+
 pnpm preconstruct build
 
+restore_meta_symlink
+trap - EXIT
+# --- end workaround ---
+
 pnpm --filter @commercetools-frontend/ui-kit run copy-assets