feat(spawning): add spawnable block overlay

README.md

@@ -32,9 +32,12 @@ The plugin JAR is written to `build/libs/`.
 /basesettings navigation <enable|disable>
 /basesettings flight <enable|disable>
 /basesettings border <enable|disable>
+/basesettings spawnable <enable|disable>
 /basesettings bossbar <enable|disable>
 ```
 
+After 250 Survival-mode block placements anywhere by default, the spawnable overlay can mark nearby dark hostile-mob spawning surfaces inside the player's base with owner-only red particles. The threshold is configurable.
+
 `/base` has a stationary warm-up. Looking around is allowed, while movement between blocks, damage, teleportation, world changes, death, logout, and conflicting teleport commands cancel it without consuming the cooldown.
 
 ## Administration
@@ -44,8 +47,10 @@ The `spigotbase.admin` permission is granted to server operators by default. `/h
 ```text
 /baseadmin status <player>
 /baseadmin setlevel <player> <base|size|flight|warmup|cooldown> <level>
-/baseadmin setprogress <player> <grass_dirt|stone|deepslate|obsidian|placements|base_breaks> <amount>
+/baseadmin setprogress <player> <grass_dirt|stone|deepslate|obsidian|placements|total_placements|base_breaks> <amount>
+/baseadmin setsetting <player> spawnable <enable|disable>
 /baseadmin config <numeric-key> <value>
+# e.g. /baseadmin config spawnable-overlay-unlock-placements 250
 /baseadmin clearcooldown <player> [personal|visitor|all]
 /baseadmin reset <player> <size|flight|warmup|cooldown>
 /baseadmin reset <player> all confirm