Load the Polyglot opening book as a classpath resource and wire it into
the expert HybridBot. Previously the bot supported Option[PolyglotBook]
but BotController passed None, so the book was never used.
PolyglotBook.fromResource reads via getResourceAsStream so the book is
embedded in the GraalVM native image instead of read from the filesystem
(FileInputStream) — no file needs mounting into the pod. The filesystem
apply(path) factory is kept for tests. Moved codekiddy.bin into
resources as opening_book.bin. Dropped the per-probe debug println.
NCS-43
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
When classical and NNUE evals diverge above the veto threshold, HybridBot
now re-searches excluding the suspect move and switches to NNUE's preferred
alternative instead of merely logging. BotController maps the expert bot to
HybridBot so tournament auto-join uses it.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>