refactor: remove unused imports and variables

- Remove unused assertThrows import from tests/utils_test.ts
- Remove unused EQBand and ProductSubtype imports from tests/import_autoeq_test.ts
- Remove unused productDirName variable from tools/autoeq/import.ts

Addresses Copilot PR review suggestions from PR#62

Author: Stephen Shaw

tests/import_autoeq_test.ts

@@ -11,7 +11,6 @@ import {
 } from "https://deno.land/std@0.203.0/assert/mod.ts";
 
 // Import from shared modules - no more code duplication!
-import { EQBand, ProductSubtype } from "../tools/types.ts";
 import { parseParametricEQ, mapTypeToSubtype } from "../tools/autoeq/parse_eq.ts";
 import { generateSlug } from "../tools/utils.ts";
 

tests/utils_test.ts

@@ -6,7 +6,6 @@
 
 import {
   assertEquals,
-  assertThrows,
 } from "https://deno.land/std@0.203.0/assert/mod.ts";
 
 import {

tools/autoeq/import.ts

@@ -113,21 +113,18 @@ export async function importAutoEQ(
 
     const measurer = relativePath[0];
     let type: string;
-    let productDirName: string;
 
     // Determine if the second segment is a type or part of the product directory
     const possibleType = relativePath[1].toLowerCase();
     const typeOptions = ["in-ear", "over-ear", "on-ear", "earbud", "earbuds"];
 
     if (typeOptions.includes(possibleType)) {
       type = possibleType;
-      productDirName = relativePath[2];
     } else {
       // Check for equipment folder like "GRAS 43AG-7 over-ear"
       const typeMatch = relativePath[1].match(/(in-ear|over-ear|on-ear|earbud|earbuds)/i);
       if (typeMatch && relativePath.length >= 4) {
         type = typeMatch[1].toLowerCase();
-        productDirName = relativePath[2];
         log(`    Extracted type "${type}" from equipment folder "${relativePath[1]}".`);
       } else {
         log(`    Unable to determine type from path: "${entry.path}"`);