refactor: restructure to clean architecture

fix: restore ScoringConfig improvements lost in refactor commit

docs: rewrite README and CLAUDE.md to reflect current architecture

code-format

code fixes

src/screener/Chunker.js

@@ -0,0 +1,4 @@
+export const chunkArray = (array, size) =>
+  Array.from({ length: Math.ceil(array.length / size) }, (_, i) =>
+    array.slice(i * size, i * size + size),
+  );