Refuse cacheAs files written before the scores were corrected

A cacheAs file holds a finished analysis, association scores included,
and 1.4.0 computes those differently. A file written by 1.3.0 would
therefore be handed back with numbers that would not be arrived at again,
and the comparison of parameters added during this cycle cannot notice
it: the parameters did not change, the formula did. The version that
wrote a file is now recorded in it, and one from before 1.4.0 is
recomputed and overwritten, with a warning saying why.

The machinery moves to a file of its own on the way, since it is no
longer about collocation analysis alone, and verbose drops out of what a
file records: how loud a query is does not change what it returns.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Change-Id: I8af9eac21ae53fe5d583578c3689b37d140a4af4
diff --git a/DESCRIPTION b/DESCRIPTION
index 107d156..2ef1ae5 100644
--- a/DESCRIPTION
+++ b/DESCRIPTION
@@ -67,6 +67,7 @@
     'RKorAPClient-package.R'
     'KorAPQuery.R'
     'association-scores.R'
+    'cacheAs.R'
     'ci.R'
     'collocationAnalysis.R'
     'collocationScoreQuery.R'