fix(#3606): validate hook-kind coverage at call sites and dispatch generically (#3687)

* test(#3606): pin hook-kind coverage in the wired guard

* fix(#3606): validate hook-kind coverage at call sites and dispatch generically

* fix(#3606): address review - segment-granular narrowing, zero-coverage diagnosis, quick.md, fragment extraction

* fix(#3606): drop stale shrink-ack, export HOOK_GROUP_KINDS, dedupe scanner regex

* chore(#3606): regenerate install-tree fixtures for new wave-post fragment

* chore(#3606): sync canonical launcher preamble into new fragment

* fix(#3606): keep fragment preamble ahead of first gsd_run mention

* fix(#3606): revert sync script's preamble move in explore.md

* chore(#3606): regenerate derived manifests post-rebase

* chore(#3606): allowlist peer test files - base was red on the count lane

* chore(#3606): regenerate inventory for peer's verify-command-grounding doc

* chore(#3606): grounding test maps to its own module by longest prefix

* chore(#3606): backfill changeset pr number

---------

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

scripts/lint-test-file-count.allowlist.json

@@ -106,7 +106,8 @@
         "verify-work-auto-transition.test.cjs",
         "verify.test.cjs"
       ],
-      "issue": "3767"
+      "issue": "3767",
+      "justification": "verify-command-grounding added by #2401/#3678; allowlist follow-up landed with #3606 (base was red on this lane)."
     },
     "install": {
       "files": [