feat: implemented supporters

src/openrouter/promptLoader.ts

@@ -0,0 +1,16 @@
+import { readFile } from "fs/promises";
+import path from "path";
+
+const prompts = ["PERSONA_INIT", "PERSONA_BASE_SYSTEM_PROMPT"] as const;
+export type PromptKey = (typeof prompts)[number];
+
+function fileName(promptKey: PromptKey): string {
+  return promptKey.toLowerCase() + ".md";
+}
+
+const PROMPTS_DIR = path.resolve(import.meta.dir, "../../prompts");
+
+export async function loadPrompt(promptKey: PromptKey): Promise<string> {
+  const filePath = path.join(PROMPTS_DIR, fileName(promptKey));
+  return readFile(filePath, "utf-8");
+}