canonicalize temp paths in daemon/cli tests for macOS

Two tests compared a raw Directory.systemTemp path against an OS-resolved
one, which diverge on macOS where /tmp is a symlink to /private/tmp:
FilesService.atCwd resolves the CWD, and the clide-cli e2e server must hash
the same canonical workspace the C client sees via getcwd. Resolve symlinks
on both sides.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

test/cli/clide_cli_e2e_test.dart

@@ -50,8 +50,10 @@ void main() {
     // Synthetic git workspace — the C client walks up looking for
     // `.git`, hashes whatever it lands on, and connects to the
     // matching socket. Match it by handing the same root to the
-    // server.
-    workspaceRoot = Directory.systemTemp.createTempSync('clide-ws-');
+    // server. Canonicalise: the client resolves its CWD via the OS
+    // (getcwd), so on macOS it hashes /private/tmp/… while a raw
+    // createTemp path is /tmp/… — the two hashes must agree.
+    workspaceRoot = Directory(Directory.systemTemp.createTempSync('clide-ws-').resolveSymbolicLinksSync());
     Directory('${workspaceRoot.path}/.git').createSync();
     dispatcher = DaemonDispatcher();
     registerArgvUnwrap(dispatcher);

test/daemon/files_commands_test.dart

@@ -231,7 +231,9 @@ void main() {
       Directory.current = nested;
       final svc = FilesService.atCwd(events: RecordingEventSink());
       // No .git anywhere on the walk → root falls back to CWD.
-      expect(svc.root.absolute.path, nested.absolute.path);
+      // Compare canonical paths: on macOS the CWD resolves through the
+      // /tmp → /private/tmp symlink, so the raw createTemp path differs.
+      expect(svc.root.resolveSymbolicLinksSync(), nested.resolveSymbolicLinksSync());
       await svc.shutdown();
     } finally {
       Directory.current = saved;