Raise walls: plan them on own floor, imps build reinforced earth

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

lang/en.lang

@@ -316,6 +316,7 @@ hint.tower_where = Towers can only be built on claimed, empty floor tiles.
 hint.tower_mana = Your magic towers have run out of mana.
 job.repair = Repairing a tower
 job.mend_bridge = Mending a bridge
+job.raise_wall = Raising a wall
 job.attack_tower = Attacking a tower
 
 unit.jailer = Jailer
@@ -404,10 +405,14 @@ tool.bridge.desc = Builds a bridge over water or lava. Drag from your own ground
 tool.drawbridge.label = Drawbridge
 tool.drawbridge.name = Build Drawbridge
 tool.drawbridge.desc = A bridge you can raise: drag across the river to build it, click it to switch: down, up, automatic (rises when enemies come near). Wood over water burns, stone over lava does not.
+tool.wall.label = Wall
+tool.wall.name = Raise Wall
+tool.wall.desc = Plan walls on your own empty floor (drag again to cancel): imps raise them as reinforced earth. Close tunnels, then put doors where they matter.
 cost.bridge = {0} gold + {1} wood/tile over water, {2} gold over lava
 cost.drawbridge = {0} gold + {1} wood/tile over water, {2} gold over lava
 hint.bridge_where = Bridges must start at your own ground: drag from your territory across the river.
 hint.bridge_fire = Wooden bridges burn: keep fire traps, fire breath and lightning away from them – stone bridges over lava are fireproof.
+hint.wall_where = Walls can only be raised on your own empty floor (no room, trap or door).
 hint.bridge_river = Bridges can only be built over water or lava.
 msg.hero_burned = A {0} fell into the lava! +{1} gold.
 msg.creature_burned = Your {0} fell into the lava.
@@ -827,6 +832,7 @@ best.b.temple.text = Prayers heal the soul core and keep spirits high. The flame
 best.b.aerie.text = Perches and nests for flying creatures. Bats, gargoyles, owls and even the ember wyrm need room here.
 best.b.bridge.text = Wood over water, stone over lava. The knights tear down your bridges - claim theirs.
 best.b.drawbridge.text = Pull it up and the river is a wall again. Set to automatic, it rises whenever enemies come close – and comes down for your own creatures.
+best.b.wall.text = A tunnel you dug is not forever: wall it up again and leave the heroes one way in – through your door.
 best.b.steel.text = Riveted iron plates on a reinforced wall. Nobody digs through quickly, not even dwarves.
 best.b.arrow.text = The arrow pierces up to two more enemies behind the target. Cheap and reliable.
 best.b.cannon.text = Splash damage and knockback - push the knights into the lava.