🤖 feat: default folder picker to home directory in server mode (#1018)

_Generated with `mux`_

In server mode, the directory picker now defaults to the user's home
directory (~) instead of the current working directory (.).

- Added `general.getHomeDirectory` API endpoint
- Frontend fetches home dir on mount and uses it as the default initial
path for the DirectoryPickerModal

Author: ibetitsmike

src/browser/components/ProjectCreateModal.tsx

@@ -185,7 +185,7 @@ export const ProjectCreateModal: React.FC<ProjectCreateModalProps> = ({
       </Dialog>
       <DirectoryPickerModal
         isOpen={isDirPickerOpen}
-        initialPath={path || "."}
+        initialPath={path || "~"}
         onClose={() => setIsDirPickerOpen(false)}
         onSelectPath={handleWebPickerPathSelected}
       />

src/node/services/projectService.test.ts

@@ -132,5 +132,23 @@ describe("ProjectService", () => {
       if (result.success) throw new Error("Expected failure");
       expect(result.error).toContain("ENOENT");
     });
+
+    it("expands ~ to home directory", async () => {
+      const result = await service.listDirectory("~");
+
+      expect(result.success).toBe(true);
+      if (!result.success) throw new Error("Expected success");
+
+      expect(result.data.path).toBe(os.homedir());
+    });
+
+    it("expands ~/subpath to home directory subpath", async () => {
+      const result = await service.listDirectory("~/.");
+
+      expect(result.success).toBe(true);
+      if (!result.success) throw new Error("Expected success");
+
+      expect(result.data.path).toBe(os.homedir());
+    });
   });
 });

src/node/services/projectService.ts

@@ -9,6 +9,7 @@ import { log } from "@/node/services/log";
 import type { BranchListResult } from "@/common/orpc/types";
 import type { FileTreeNode } from "@/common/utils/git/numstatParser";
 import * as path from "path";
+import * as os from "os";
 
 /**
  * List directory contents for the DirectoryPickerModal.
@@ -17,7 +18,12 @@ import * as path from "path";
  * - children are the immediate subdirectories (not recursive)
  */
 async function listDirectory(requestedPath: string): Promise<FileTreeNode> {
-  const normalizedRoot = path.resolve(requestedPath || ".");
+  // Expand ~ to home directory (path.resolve doesn't handle tilde)
+  const expanded =
+    requestedPath === "~" || requestedPath.startsWith("~/")
+      ? requestedPath.replace("~", os.homedir())
+      : requestedPath;
+  const normalizedRoot = path.resolve(expanded || ".");
   const entries = await fsPromises.readdir(normalizedRoot, { withFileTypes: true });
 
   const children: FileTreeNode[] = entries