Settings dialog, per-program install defaults, Options after install; Update only when needed

Core.py

@@ -7,7 +7,7 @@ picked for one Sara program looks the same in all of them.
 
 import os
 import sys
-from dataclasses import asdict, dataclass
+from dataclasses import asdict, dataclass, field
 from pathlib import Path
 
 import flet as ft
@@ -106,6 +106,11 @@ class AppConfig:
     # Where the Sara repos live (Gitea on SpineS); manifests
     # use it as {GitHost}.
     GitHost: str = "https://git.srhtnin.garden/sarah"
+    # What the install dialog starts with, per program, overriding the
+    # manifest's defaults: {Program: {OptionId: ticked}} and
+    # {Program: {QuestionId: answer}}. Set in Settings.
+    OptionDefaults: dict[str, dict[str, bool]] = field(default_factory=dict)
+    AnswerDefaults: dict[str, dict[str, str]] = field(default_factory=dict)
 
     def Save(self) -> None:
         ConfigDir.mkdir(parents=True, exist_ok=True)