Tutorial: Crookfinger leads a new master through the first steps

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/ROADMAP.md

@@ -65,7 +65,7 @@ surface songs, so the older pieces stay byte for byte the same): build16-19, bat
 surface_battle1-2; `audio::Category::Surface` / `SurfaceBattle`, chosen in `MusicDirector` when most of the
 camera's surroundings lie above ground (4 s crossfade).
 
-## 4. Additions
+## 4. Additions – done (v202611-00047)
 
 Status: creature abilities (personality.rs: an ability per creature at level 3-7, used by itself) and
 creature relationships (likes, hates, brawls) existed already. Done in this block so far:
@@ -84,7 +84,9 @@ wood or a mana potion), seasons (snow above ground in winter, pumpkins at Hallow
 creature equipment (`src/armory.rs`: without orders the forge makes iron, steel and rune gear for gold; each
 piece goes to the strongest creature without one that good: +10/22/38% health and attack, a coloured mark at
 the health bar). The dynamic music (calm and battle) existed already and now also follows the camera to the
-surface. Still open: the tutorial mission.
+surface. The tutorial (*Tutorial* in the title menu, `editor::templates::tutorial_campaign`): Crookfinger leads a
+new master through digging, claiming, lair, mushroom garden, the first creatures, a slap and two knights - one
+painted mission whose triggers switch each other on. **Block 4 is done.**
 
 1. **Random events** – earthquake (tunnels cave in), lava eruption, flood, gold vein found. Rare
    (every 8–12 minutes), free play and multiplayer only, can be switched off in the menu; in