Deleted 198 AppleDouble resource forks named zz._*.wav, on explicit owner
instruction. Every one confirmed by file(1) magic before removal rather than by
name pattern -- 198/198 candidates came back 'AppleDouble encoded Macintosh
file', zero false positives, 0.3 MB. 69 were in playable banks
(rhadamanthe_fx 227->189, _divers 314->293, _vocal 77->72, _melo 32->30); 129
were under Samples/baba/__MACOSX/, whose emptied dirs were rmdir-ed. Sample
indices were untouched: the zz. prefix sorted them after every real sample,
which is presumably why someone renamed rather than deleted. The boot is now
free of the 'WARNING: File reading failed' wall.

Then three faults in the freshness path, each hiding the next:

1. preload.scd's mismatch banner said 'whitelist is STALE, regenerate it' when
   the cause was unreadable files, and regenerating provably changed nothing.
   Now reports 'N bank(s) DID NOT FULLY LOAD', separates got==0 (whole bank) from
   0<got<expected (folder changed, or some files are not audio), and prints the
   file(1) one-liner that distinguishes them.

2. check-preload.sh compared bank NAME SETS and never counts. The plan said
   rhadamanthe_vocal=77 against a folder of 72 and the checker printed 'ok' while
   the boot said 'expected 77 files, got 72' -- and --fix refused to regenerate,
   because by the name-set test nothing had changed. The everyday way to hit this
   is dropping a new pack into an existing bank: every new file lazy-loads
   mid-set under a green check. Now compares name+count pairs and prints
   'plan N -> disk M' per drifted bank.

3. The bank-name regex was case-blind. [a-z0-9_]+ truncated rampleA0 to rample
   and collapsed every vocalOoh1/vocalScatJ into one 'vocal', which is why the
   checker said 111 banks while SuperDirt loaded 124. 124 was always the truth;
   the regex was wrong in both directions, undercounting the plan AND inventing
   two bank names that do not exist. bank_counts() had inherited it, so drift in
   a camelCase bank stayed invisible even after fault 2 was fixed.

Three numbers now agree: checker 124, boot '124/124 banks OK in 5.2 s',
independent parse 124/124/no gap. Drift tested both directions on a camelCase
bank, plan byte-identical afterwards.