Fix fish terminal. Smarter code completion and other nicities.

.vscode/settings.json

@@ -11,10 +11,13 @@
     // Let the Python extension invoke pytest via the interpreter; avoid hardcoded paths
     // Removed python.testing.pytestPath and legacy pytest.command overrides
     
-    "terminal.integrated.defaultProfile.linux": null,
+    "terminal.integrated.defaultProfile.linux": "fish",
     "terminal.integrated.profiles.linux": {
-      "ash": {
-        "path": "/bin/fish"
+      "fish": {
+        "path": "/usr/bin/fish"
       }
     }
+    ,
+    // Fallback for older VS Code versions or schema validators that don't accept custom profiles
+    "terminal.integrated.shell.linux": "/usr/bin/fish"
 }