Fix - Lint warnings and errors in client

Lint issues fixed:
1. Removed unused error variable in catch block
2. Changed 'ActionTypes' type to enum
3. Removed unnecessary interface extensions
4. Removed unused export component
5. Added the missing dependencies to useMemo
6. Fixed the inline function issue by changing it to useMemo

client/src/lib/hooks/useCompletionState.ts

@@ -1,4 +1,4 @@
-import { useState, useCallback, useEffect, useRef } from "react";
+import { useState, useCallback, useEffect, useRef, useMemo } from "react";
 import {
   ResourceReference,
   PromptReference,
@@ -15,9 +15,11 @@ function debounce<T extends (...args: any[]) => PromiseLike<void>>(
   wait: number,
 ): (...args: Parameters<T>) => void {
   let timeout: ReturnType<typeof setTimeout>;
-  return function (...args: Parameters<T>) {
+  return (...args: Parameters<T>) => {
     clearTimeout(timeout);
-    timeout = setTimeout(() => func(...args), wait);
+    timeout = setTimeout(() => {
+      void func(...args);
+    }, wait);
   };
 }
 
@@ -58,8 +60,8 @@ export function useCompletionState(
     });
   }, [cleanup]);
 
-  const requestCompletions = useCallback(
-    debounce(
+  const requestCompletions = useMemo(() => {
+    return debounce(
       async (
         ref: ResourceReference | PromptReference,
         argName: string,
@@ -94,7 +96,7 @@ export function useCompletionState(
               loading: { ...prev.loading, [argName]: false },
             }));
           }
-        } catch (err) {
+        } catch {
           if (!abortController.signal.aborted) {
             setState((prev) => ({
               ...prev,
@@ -108,9 +110,8 @@ export function useCompletionState(
         }
       },
       debounceMs,
-    ),
-    [handleCompletion, completionsSupported, cleanup, debounceMs],
-  );
+    );
+  }, [handleCompletion, completionsSupported, cleanup, debounceMs]);
 
   // Clear completions when support status changes
   useEffect(() => {