refactor(vscode-ide-companion/types): move ApprovalModeValue type to dedicated file

feat(vscode-ide-companion/file-context): improve file context handling and search

Enhance file context hook to better handle search queries and reduce redundant requests.
Track last query to optimize when to refetch full file list.
Improve logging for debugging purposes.

packages/vscode-ide-companion/src/webview/hooks/file/useFileContext.ts

@@ -34,6 +34,9 @@ export const useFileContext = (vscode: VSCodeAPI) => {
   // Whether workspace files have been requested
   const hasRequestedFilesRef = useRef(false);
 
+  // Last non-empty query to decide when to refetch full list
+  const lastQueryRef = useRef<string | undefined>(undefined);
+
   // Search debounce timer
   const searchTimerRef = useRef<NodeJS.Timeout | null>(null);
 
@@ -42,12 +45,10 @@ export const useFileContext = (vscode: VSCodeAPI) => {
    */
   const requestWorkspaceFiles = useCallback(
     (query?: string) => {
-      if (!hasRequestedFilesRef.current && !query) {
-        hasRequestedFilesRef.current = true;
-      }
+      const normalizedQuery = query?.trim();
 
       // If there's a query, clear previous timer and set up debounce
-      if (query && query.length >= 1) {
+      if (normalizedQuery && normalizedQuery.length >= 1) {
         if (searchTimerRef.current) {
           clearTimeout(searchTimerRef.current);
         }
@@ -55,14 +56,23 @@ export const useFileContext = (vscode: VSCodeAPI) => {
         searchTimerRef.current = setTimeout(() => {
           vscode.postMessage({
             type: 'getWorkspaceFiles',
-            data: { query },
+            data: { query: normalizedQuery },
           });
         }, 300);
+        lastQueryRef.current = normalizedQuery;
       } else {
-        vscode.postMessage({
-          type: 'getWorkspaceFiles',
-          data: query ? { query } : {},
-        });
+        // For empty query, request once initially and whenever we are returning from a search
+        const shouldRequestFullList =
+          !hasRequestedFilesRef.current || lastQueryRef.current !== undefined;
+
+        if (shouldRequestFullList) {
+          lastQueryRef.current = undefined;
+          hasRequestedFilesRef.current = true;
+          vscode.postMessage({
+            type: 'getWorkspaceFiles',
+            data: {},
+          });
+        }
       }
     },
     [vscode],

packages/vscode-ide-companion/src/webview/hooks/useWebViewMessages.ts

@@ -12,7 +12,7 @@ import type {
   ToolCall as PermissionToolCall,
 } from '../components/PermissionDrawer/PermissionRequest.js';
 import type { ToolCallUpdate } from '../../types/chatTypes.js';
-import type { ApprovalModeValue } from '../../types/acpTypes.js';
+import type { ApprovalModeValue } from '../../types/approvalModeValueTypes.js';
 import type { PlanEntry } from '../../types/chatTypes.js';
 
 interface UseWebViewMessagesProps {