refactor: extract contextSizePad to the config file

Author: giladgd

src/config.ts

@@ -125,3 +125,4 @@ export const documentationPageUrls = {
 export const newGithubIssueUrl = "https://github.com/withcatai/node-llama-cpp/issues";
 export const recommendedBaseDockerImage = "node:20";
 export const minAllowedContextSizeInCalculations = 24;
+export const contextSizePad = 256; // source: `GGML_PAD` usage in `llama_context::llama_context` in `llama-context.cpp`

src/evaluator/LlamaContext/utils/padSafeContextSize.ts

@@ -1,4 +1,4 @@
-const contextSizePad = 256;
+import {contextSizePad} from "../../../config.js";
 
 export function padSafeContextSize(value: number, padDirection: "up" | "down", padding: number = contextSizePad) {
     const paddedSize = ggmlPad(value, padding);