fix(#1831): add state-rebuild test files to lint-test-file-count allowlist

PRs #1829 and #1830 added tests/state-rebuild.test.cjs and
tests/state-rebuild-cli.test.cjs but did not add them to the
lint-test-file-count allowlist for the 'state' module. The
lint-test-file-count.test.cjs harness reported FAIL_NOVEL_FILES
with the two files listed as novel.

Verified via gsd-test (--base origin/main --head origin/next):
without this fix, 2/22097 tests fail (both lint-test-file-count
allowlist cases). The state module has 17 test files; allowlist
entry now lists all 17 alphabetically.

Process note: the original PRs should have updated this allowlist
in the same commit that added the test files. Recapture of the
golden-install-parity fixtures is NOT required — those fixtures on
next are correct (verified: no diff from UPDATE_GOLDEN=1 locally).

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

@@ -110,10 +110,12 @@
         "bug-3454-state-dollar-backreference-growth.test.cjs",
         "bug-397-state-preserve-executor-authored.test.cjs",
         "bug-905-state-syncstatefrontmatter-preserve-scalars.test.cjs",
-        "bug-948-state-noop-write-guard.test.cjs",
-        "state-acquirestatelock-non-eexist.test.cjs",
-        "state-prune.test.cjs",
-        "state.test.cjs"
+    "bug-948-state-noop-write-guard.test.cjs",
+    "state-acquirestatelock-non-eexist.test.cjs",
+    "state-prune.test.cjs",
+    "state-rebuild-cli.test.cjs",
+    "state-rebuild.test.cjs",
+    "state.test.cjs"
       ],
       "issue": "180"
     },