fix(understone): rebalance early game and add inn turn refresh

The opening hours were a gold/HP death spiral: a fresh hero spent more gold
healing a fight than the kill paid, mid-tier foes out-damaged a starting HP
bar, the map gave no read on where harder foes spawned, and a spent day left
the player idle until the UTC rollover. This eases the on-ramp across both
shipped worlds.

Economy
- Healer drops from 2 to 1 gold per HP, so topping up no longer outruns income.
- Starting purse 20 -> 37: enough to buy the cheapest armor and one potion up
  front, a one-point DEF bump plus a heal cushion the player chooses to spend.

Combat
- Tier 2-4 common foes lose 1 ATK each, trimming the burst that could halve or
  end a fresh hero in a single bout. Rares and the boss are untouched.

Wayfinding
- The road glyph changes from "=" to a shaded path that reads as one continuous
  road in every orientation; "=" only looked right horizontally and broke into
  stacked dashes on vertical runs. Cinder's basalt path gets the same treatment
  with a crosshatch glyph free in its palette.

Rest
- Sleeping at the inn now rolls a spent adventurer into a fresh day's turns (it
  already fully heals). The top-up fires only at zero turns, so it never banks
  past the daily cap.

Verified: full suite green (+2 rest tests, ruff/mypy clean); the greedy balance
bot still clears the world 11/12 seeds at an unchanged pace on both packs.

examples/door-game/tests/test_game.py

@@ -161,6 +161,35 @@ def test_rest_heals_and_charges(tmp_path: Path, clock: object) -> None:
     assert "full health" in out.lower()
 
 
+def test_rest_when_spent_restores_a_fresh_days_turns(tmp_path: Path, clock: object) -> None:
+    """Sleeping at the inn with no turns left rolls into a fresh day's allowance."""
+    game = _game(tmp_path, clock)
+    game.join("Brandr")
+    player = game.players["Brandr"]
+    daily = game.world.settings.daily_turns
+    player.turns_left = 0  # spent for the day
+    player.hp = 5
+    game.move("Brandr", "", "west", 2)  # step into the inn
+    out = game.action("Brandr", "rest", "", "")
+    assert player.turns_left == daily  # a fresh day's turns restored
+    assert player.hp == player.max_hp  # and fully mended
+    assert f"/{daily} ]" in out  # footer reflects the refreshed budget
+
+
+def test_rest_with_turns_in_hand_never_inflates_the_budget(tmp_path: Path, clock: object) -> None:
+    """Resting mid-day mends but adds no turns — the top-up only fires at zero."""
+    game = _game(tmp_path, clock)
+    game.join("Brandr")
+    player = game.players["Brandr"]
+    daily = game.world.settings.daily_turns
+    player.turns_left = daily - 3  # turns still in hand
+    player.hp = 5
+    game.move("Brandr", "", "west", 2)  # step into the inn
+    game.action("Brandr", "rest", "", "")
+    assert player.turns_left == daily - 3  # unchanged: no farming past the cap
+    assert player.hp == player.max_hp  # but the heal still lands
+
+
 def test_fight_spends_a_turn_and_credits(tmp_path: Path, clock: object) -> None:
     game = _game(tmp_path, clock)
     game.join("Brandr")

examples/door-game/understone/game.py

@@ -1015,16 +1015,28 @@ class Game:
         return self._overworld_frame(player, lines=["You step back out into the open air."])
 
     def _rest(self, player: Player) -> str:
+        # Settle any pending day rollover first, so a rest taken as the first act
+        # of a new day is the ordinary refresh, not the spent-turns top-up below.
+        self._ensure_day(player)
         cost = self.world.settings.rest_cost
-        if leveling.rest(player, cost):
-            # A night's rest is a private errand, not Herald news; persist only.
-            self._persist(player)
-            return self._location_menu(
-                player, lines=[f"You sleep deeply and wake at full health. (-{cost} gold)"]
-            )
+        if not leveling.rest(player, cost):
             return self._location_menu(
                 player, lines=[f"You can't afford the {cost}-gold bed. (You have {player.gold}.)"]
             )
+        # A night at the inn always mends. Once the day's turns are spent it also
+        # rolls the sleeper into a fresh day's allowance, so a spent adventurer can
+        # press on rather than idling until the dawn rollover. The top-up only
+        # fires at zero, so it never banks turns past the daily cap.
+        line = f"You sleep deeply and wake at full health. (-{cost} gold)"
+        if player.turns_left <= 0:
+            player.turns_left = self.world.settings.daily_turns
+            line = (
+                f"You sleep through to a new dawn, waking at full health "
+                f"and ready to venture out anew. (-{cost} gold)"
+            )
+        # A night's rest is a private errand, not Herald news; persist only.
+        self._persist(player)
+        return self._location_menu(player, lines=[line])
 
     # -- the Vault: bank gold at the inn (safe from ambush) --------------
 

examples/door-game/understone/world/data/monsters.json

@@ -21,7 +21,7 @@
     "tier": 2,
     "name": "Goblin",
     "hp": 12,
-    "atk": 5,
+    "atk": 4,
     "def": 1,
     "xp": 18,
     "gold": 7
@@ -30,7 +30,7 @@
     "tier": 2,
     "name": "Bandit Scout",
     "hp": 14,
-    "atk": 6,
+    "atk": 5,
     "def": 1,
     "xp": 20,
     "gold": 9
@@ -50,7 +50,7 @@
     "tier": 3,
     "name": "Forest Wolf",
     "hp": 20,
-    "atk": 8,
+    "atk": 7,
     "def": 2,
     "xp": 35,
     "gold": 14
@@ -59,7 +59,7 @@
     "tier": 3,
     "name": "Bog Stalker",
     "hp": 22,
-    "atk": 9,
+    "atk": 8,
     "def": 2,
     "xp": 38,
     "gold": 16
@@ -79,7 +79,7 @@
     "tier": 4,
     "name": "Cave Troll",
     "hp": 38,
-    "atk": 12,
+    "atk": 11,
     "def": 4,
     "xp": 70,
     "gold": 30
@@ -88,7 +88,7 @@
     "tier": 4,
     "name": "Barrow Wight",
     "hp": 35,
-    "atk": 13,
+    "atk": 12,
     "def": 4,
     "xp": 65,
     "gold": 28

examples/door-game/understone/world/data/terrain.json

@@ -22,7 +22,7 @@
   },
   "=": {
     "key": "road",
-    "glyph": "=",
+    "glyph": "▒",
     "walkable": true,
     "encounter_rate": 0.02,
     "color": "road"

examples/door-game/understone/world/data/world.json

@@ -100,8 +100,8 @@
   "settings": {
     "daily_turns": 10,
     "rest_cost": 15,
-    "heal_cost_per_hp": 2,
-    "starting_gold": 20,
+    "heal_cost_per_hp": 1,
+    "starting_gold": 37,
     "starting_weapon": "rusty_dagger",
     "starting_armor": "cloth_tunic",
     "start_hp": 20,

examples/door-game/understone/world/packs/cinder-wastes/monsters.json

@@ -21,7 +21,7 @@
     "tier": 2,
     "name": "Ember Imp",
     "hp": 12,
-    "atk": 5,
+    "atk": 4,
     "def": 1,
     "xp": 18,
     "gold": 7
@@ -30,7 +30,7 @@
     "tier": 2,
     "name": "Slag Scuttler",
     "hp": 14,
-    "atk": 6,
+    "atk": 5,
     "def": 1,
     "xp": 20,
     "gold": 9
@@ -50,7 +50,7 @@
     "tier": 3,
     "name": "Magma Hound",
     "hp": 20,
-    "atk": 8,
+    "atk": 7,
     "def": 2,
     "xp": 35,
     "gold": 14
@@ -59,7 +59,7 @@
     "tier": 3,
     "name": "Obsidian Lurker",
     "hp": 22,
-    "atk": 9,
+    "atk": 8,
     "def": 2,
     "xp": 38,
     "gold": 16
@@ -79,7 +79,7 @@
     "tier": 4,
     "name": "Basalt Golem",
     "hp": 38,
-    "atk": 12,
+    "atk": 11,
     "def": 4,
     "xp": 70,
     "gold": 30
@@ -88,7 +88,7 @@
     "tier": 4,
     "name": "Ashen Wraith",
     "hp": 35,
-    "atk": 13,
+    "atk": 12,
     "def": 4,
     "xp": 65,
     "gold": 28

examples/door-game/understone/world/packs/cinder-wastes/terrain.json

@@ -22,7 +22,7 @@
   },
   "=": {
     "key": "basalt",
-    "glyph": "=",
+    "glyph": "▩",
     "walkable": true,
     "encounter_rate": 0.02,
     "color": "road"

examples/door-game/understone/world/packs/cinder-wastes/world.json

@@ -100,8 +100,8 @@
   "settings": {
     "daily_turns": 10,
     "rest_cost": 15,
-    "heal_cost_per_hp": 2,
-    "starting_gold": 20,
+    "heal_cost_per_hp": 1,
+    "starting_gold": 37,
     "starting_weapon": "charred_shiv",
     "starting_armor": "scorched_rags",
     "start_hp": 20,