fix(#3664): warn when config-dir targets a foreign-agent destination (#3794)

* test(#3664): failing-first rows for the config-dir foreign-agent warning

* fix(#3664): warn when config-dir targets a foreign-agent destination

* test(#3664): fold the foreign-agent warning rows into the install-regressions suite

* fix(#3664): close review findings — kimi-agents kind, gsd.md ownership, e2e gate

* test(#3664): sync boolean call sites and the path-vocab registries

* chore(#3664): backfill changeset pr number

* test(#3663): skip the posix case-pin on win32 where folding is the fix

---------

Co-authored-by: sim <sim@local>

eslint-rules/lib/portability-vocab.cjs

@@ -60,6 +60,8 @@ const PATH_RETURNING_FNS = [
   // #2088 (ADR-1239 upgrade 3): resolves the on-disk skills-install dir honoring
   // a skills-kind `home` override (e.g. Codex → $HOME/.agents/skills).
   '_resolveSkillsRootDir',
+  // #3664: shared kind-destination resolver (skills/agents/kimi-agents kinds).
+  '_kindDestDir',
   'getGlobalSkillDir',
   'getGlobalSkillDisplayPath',
   'resolveSkillsBaseFromDescriptor',