v1.92.18.0 fix(install): --project resolves to its git toplevel and refuses a repo slug (GST-743) (#3783)

* test(install): a --project repo slug is a usage error, not a project-less verdict (GST-743, failing first)

Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>

* fix(install): --project refuses a value that is not a directory (GST-743)

Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>

* fix: pre-landing review fixes (GST-743: key --project by its git toplevel, refuse a non-directory before cloning, ignore CDPATH)

Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>

* fix: pre-landing review fixes (GST-743: --project resolves to its git toplevel for pins and the key; an unenterable directory is refused)

Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>

* changelog: GST-743 fragment names the subpackage-pin and admission-key behavior

Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>

* docs: capy-install names how --project resolves (GST-743)

Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>

---------

Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "gstack",
-  "version": "1.92.17",
+  "version": "1.92.18",
   "description": "Garry's Stack — Claude Code skills + fast headless browser. One repo, one install, entire AI engineering workflow.",
   "license": "MIT",
   "type": "module",