Make loadouts authored catalog presets with an editor capture command

Loadouts are ship presets (variants) for spawners, not a player feature.

- Route Loadout to the catalog; the player store no longer holds it.
- Materialize takes no credits: affordability, the charge and Loadouts.Price
  are deleted, since only the player menu priced loadouts. Availability,
  key-order product choice, all-or-nothing failures and the weapon-group
  rules stay.
- Delete the InventoryPanel Save Loadout and Restore Loadout entries and
  RestoreLoadout, which also removes its docking-bay overwrite.
- The editor opens the catalog writable in the one process cache, and the
  editor-only console command capturepreset "<name>" [replace] captures the
  piloted ship. Loadouts.Commit keys a preset by name, refuses a same-name
  replace unless asked, and commits conditionally on that key. The single-file
  store then lands only that record onto the file as it is on disk. An
  unconditional commit would re-serialize every live catalog instance,
  including any that play has mutated.
- Tests: capture -> commit -> fresh reopen round-trip, explicit replace with
  no duplicate, and a preset commit that does not persist a mutated live
  Faction. The money-only tests are removed.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Assets/Scripts/ServerShared/LoadoutGenerator.cs

@@ -149,7 +149,7 @@ public class LoadoutGenerator
 
     // No galaxy means no availability to filter by: every product is on offer. A fixture generates loadouts that
     // way, so a test can exercise placement and products without standing up a whole galaxy; no game path does.
-    // Restoring a loadout passes this to Loadouts.Materialize, so a loadout and generation share one availability rule.
+    // Materializing a preset passes this to Loadouts.Materialize, so presets and generation share one availability rule.
     public bool IsAvailable(FactionProductData product) =>
         Galaxy == null || Galaxy.IsPrelude ||
         Galaxy.ContainsFaction(product.Manufacturer) && (Faction == null || Faction.Allegiance.ContainsKey(product.Manufacturer));