feat: per-mission params, default config values, and mods bug docs

- Add per-mission params to rotation (MissionRotationItem.params); falls
  back to default_mission_params, then omits entirely if both empty
- Add key-value widget to ConfigEditor for default_mission_params field
- Add MissionParamsEditor component for editing param key/value/type rows
- Bump config schema to 1.1.0 with migration from 1.0.0
- Add normalize_section() to Protocol and ArmaConfigGenerator for
  read-time backfill of old stored rows
- Set Arma3 BasicConfig and ProfileConfig defaults from basic.cfg /
  Administrator.Arma3Profile
- Document 3 known Mods tab bugs in CLAUDE.md for next-session fix

backend/adapters/protocols.py

@@ -92,6 +92,14 @@ class ConfigGenerator(Protocol):
         """
         ...
 
+    def normalize_section(self, section: str, data: dict) -> dict:
+        """
+        Optional: backfill / migrate a stored section dict before returning it to callers.
+        Called by service.get_config_section() via hasattr guard.
+        Default: return data unchanged. Implement to add new optional fields with defaults.
+        """
+        return data
+
 
 @runtime_checkable
 class RemoteAdminClient(Protocol):