fix: correct API endpoint URLs in workspace file browser

The workspace was using /api/projects/... but the API routes are mounted
at /projects without the /api prefix. Switched from raw fetch() to the
apiClient which already has the correct baseURL configured.

Also fixed TypeScript types and removed unused variables.

apps/web/src/pages/repo-workspace.tsx

@@ -1,15 +1,29 @@
 import { useCallback, useEffect, useState } from "react";
 
-import { Link, useNavigate, useParams, useSearchParams } from "react-router-dom";
+import { Link, useParams, useSearchParams } from "react-router-dom";
 
+import { apiClient } from "../api/client";
 import { listRepositories, type GitRepository } from "../api/git_repositories";
 
 type WorkspaceStatus = "loading" | "ready" | "error" | "empty";
 
+interface FileTreeEntry {
+  name: string;
+  type: "file" | "directory";
+  path: string;
+  size?: number;
+  mode?: string;
+  last_commit?: {
+    hash: string;
+    message: string;
+    author: string;
+    date: string;
+  } | null;
+}
+
 export const RepoWorkspace = () => {
   const { projectId } = useParams<{ projectId: string }>();
   const [searchParams, setSearchParams] = useSearchParams();
-  const navigate = useNavigate();
 
   const [status, setStatus] = useState<WorkspaceStatus>("loading");
   const [repositories, setRepositories] = useState<GitRepository[]>([]);
@@ -151,7 +165,7 @@ const FileBrowser = ({
   repoId: string;
 }) => {
   const [searchParams, setSearchParams] = useSearchParams();
-  const [entries, setEntries] = useState<any[]>([]);
+  const [entries, setEntries] = useState<FileTreeEntry[]>([]);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState<string | null>(null);
 
@@ -162,17 +176,16 @@ const FileBrowser = ({
     setLoading(true);
     setError(null);
     try {
-      const response = await fetch(
-        `/api/projects/${projectId}/repositories/${repoId}/files?branch=${encodeURIComponent(
-          branch
-        )}&path=${encodeURIComponent(path)}`,
-        { credentials: "include" }
-      );
-      if (!response.ok) {
-        throw new Error("Failed to load files");
+      const response = await apiClient.get(
+        `/projects/${projectId}/repositories/${repoId}/files`,
+        {
+          params: {
+            branch,
+            path,
+          },
         }
-      const data = await response.json();
-      setEntries(data.entries || []);
+      );
+      setEntries(response.data.entries || []);
     } catch {
       setError("Failed to load files");
     } finally {
@@ -184,7 +197,7 @@ const FileBrowser = ({
     void loadFiles();
   }, [loadFiles]);
 
-  const handleEntryClick = (entry: any) => {
+  const handleEntryClick = (entry: FileTreeEntry) => {
     if (entry.type === "directory") {
       const newParams = new URLSearchParams(searchParams);
       newParams.set("path", entry.path);
@@ -240,7 +253,7 @@ const FileViewer = ({
   projectId: string;
   repoId: string;
 }) => {
-  const [searchParams, setSearchParams] = useSearchParams();
+  const [searchParams] = useSearchParams();
   const [content, setContent] = useState<string | null>(null);
   const [loading, setLoading] = useState(false);
   const [error, setError] = useState<string | null>(null);
@@ -258,16 +271,16 @@ const FileViewer = ({
     setLoading(true);
     setError(null);
     try {
-      const response = await fetch(
-        `/api/projects/${projectId}/repositories/${repoId}/files/content?branch=${encodeURIComponent(
-          branch
-        )}&path=${encodeURIComponent(filePath)}`,
-        { credentials: "include" }
-      );
-      if (!response.ok) {
-        throw new Error("Failed to load file");
+      const response = await apiClient.get(
+        `/projects/${projectId}/repositories/${repoId}/files/content`,
+        {
+          params: {
+            branch,
+            path: filePath,
+          },
         }
-      const data = await response.json();
+      );
+      const data = response.data;
       if (data.is_binary) {
         setIsBinary(true);
         setContent("Binary file - cannot display");