refactor: clean up imports

- Add explicit import for CUSTOM_PROMPTS_DIR in server.ts
- Remove unused path import in config-manager.ts

Author: mettamatt

src/server.ts

@@ -63,7 +63,12 @@ import { z, ZodError } from 'zod';
 import { zodToJsonSchema } from 'zod-to-json-schema';
 import { PromptManager } from './prompts/manager.js';
 import { configManager, type CodeReasoningConfig } from './utils/config-manager.js';
-import { CONFIG_DIR, MAX_THOUGHT_LENGTH, MAX_THOUGHTS } from './utils/config.js';
+import {
+  CONFIG_DIR,
+  MAX_THOUGHT_LENGTH,
+  MAX_THOUGHTS,
+  CUSTOM_PROMPTS_DIR,
+} from './utils/config.js';
 
 /* -------------------------------------------------------------------------- */
 /*                               CONFIGURATION                                */

src/utils/config-manager.ts

@@ -5,7 +5,6 @@
  * configuration settings for the code-reasoning server.
  */
 
-import path from 'path';
 import { CONFIG_DIR } from './config.js';
 
 /**