Fix build errors (mainly eslint)

src/lib/loadRules.ts

@@ -15,7 +15,7 @@ export async function loadRules(
   locale: Locale,
 ): Promise<string> {
   // Try to load the file for the current locale first
-  let filePath = path.join(
+  const filePath = path.join(
     process.cwd(),
     "src",
     "data",
@@ -28,7 +28,7 @@ export async function loadRules(
     // Check if file exists for current locale
     if (fs.existsSync(filePath)) {
       const file = await import("fs").then(() =>
-        fs.readFileSync(filePath, "utf8")
+        fs.readFileSync(filePath, "utf8"),
       );
       return file;
     }
@@ -60,7 +60,7 @@ export async function loadRules(
       error,
     );
     throw new Error(
-      `Failed to load rules for ${ruleType}: ${error instanceof Error ? error.message : 'Unknown error'}`,
+      `Failed to load rules for ${ruleType}: ${error instanceof Error ? error.message : "Unknown error"}`,
     );
   }
 }
@@ -97,7 +97,7 @@ export async function loadRulesBun(
       error,
     );
     throw new Error(
-      `Failed to load rules for ${ruleType}: ${error instanceof Error ? error.message : 'Unknown error'}`,
+      `Failed to load rules for ${ruleType}: ${error instanceof Error ? error.message : "Unknown error"}`,
     );
   }
 }

src/lib/rules.ts

@@ -45,7 +45,7 @@ export async function getRules(
         return fallbackContent;
       } catch (fallbackError) {
         throw new Error(
-          `Rules file not found for ${ruleType} in either ${locale} or et locale`,
+          `Rules file not found for ${ruleType} in either ${locale} or et locale: ${fallbackError}`,
         );
       }
     }