Scale health and damage by ten so percentages have somewhere to land

A shot is 60, a fresh character has 1000, the Warden has 36000. Enemy health,
boss health and every emitter's damage were scaled with them, so every ratio
is unchanged and time to kill is exactly what it was -- tests/unit/test_content
now pins shots-to-kill per enemy and hits-to-kill a player so a careless edit
to either side shows up as a number a designer recognises.

The reason is rounding rather than balance. Damage is an integer, and at a base
of 6 the +5% every upgrade carries computed to 6.3 and rounded straight back to
6: a player took their first upgrade, was told it made them stronger, and
nothing happened. diag_upgrades used to print "damage matches the formula
(6 -> 6)"; it now prints (60 -> 63). The boss's per-phase armour multiplier had
the same problem, turning 1.15 into an effective 1.17.

The practice dummy stopped relying on a huge health pool at the same time. Its
old 100000 was already past the u16 the snapshot sends enemy health in, and
once a shot did 60 a patient player could have destroyed the hub's only
practice target for everyone until the next restart. EnemyDef.indestructible
says what was actually meant, and a test asserts nothing else uses it.

check.sh clean, 364 tests, SMOKE PASS, all four diagnostics green.

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

resources/bosses/warden.tres

@@ -27,7 +27,7 @@ interval = 45
 speed = 135.0
 radius = 8.0
 lifetime = 420
-damage = 14
+damage = 140
 
 [sub_resource type="Resource" id="Resource_a0mrn"]
 script = ExtResource("5_v02no")
@@ -37,6 +37,7 @@ start_tick = 120
 interval = 150
 speed = 210.0
 radius = 6.0
+damage = 120
 kind = 2
 
 [sub_resource type="Resource" id="Resource_pfjxl"]
@@ -54,6 +55,7 @@ muzzle_offset = 46.0
 interval = 9
 speed = 120.0
 lifetime = 480
+damage = 120
 
 [sub_resource type="Resource" id="Resource_k1e8f"]
 script = ExtResource("6_x6ufy")
@@ -63,7 +65,7 @@ start_tick = 90
 interval = 170
 speed = 175.0
 radius = 8.0
-damage = 16
+damage = 160
 kind = 3
 
 [sub_resource type="Resource" id="Resource_4sp1g"]
@@ -83,7 +85,7 @@ sweep_period = 5.0
 interval = 5
 speed = 165.0
 lifetime = 400
-damage = 13
+damage = 130
 
 [sub_resource type="Resource" id="Resource_3fm5w"]
 script = ExtResource("5_v02no")
@@ -95,6 +97,7 @@ start_tick = 60
 interval = 110
 speed = 195.0
 radius = 6.0
+damage = 120
 kind = 2
 
 [sub_resource type="Resource" id="Resource_20c8f"]
@@ -106,6 +109,7 @@ end_tick = 600
 interval = 60
 speed = 105.0
 lifetime = 420
+damage = 120
 
 [sub_resource type="Resource" id="Resource_ymr56"]
 script = ExtResource("2_f5abt")
@@ -124,7 +128,7 @@ interval = 11
 speed = 130.0
 turn_deg = 0.55
 lifetime = 400
-damage = 15
+damage = 150
 
 [sub_resource type="Resource" id="Resource_3n6oq"]
 script = ExtResource("6_x6ufy")
@@ -134,7 +138,7 @@ start_tick = 40
 interval = 130
 speed = 200.0
 radius = 8.0
-damage = 18
+damage = 180
 kind = 3
 
 [sub_resource type="Resource" id="Resource_8ppic"]
@@ -145,7 +149,7 @@ start_tick = 100
 interval = 80
 speed = 300.0
 radius = 5.0
-damage = 16
+damage = 160
 kind = 2
 
 [sub_resource type="Resource" id="Resource_yqxmm"]
@@ -161,7 +165,7 @@ emitters = Array[ExtResource("3_tmo3e")]([SubResource("Resource_7xac7"), SubReso
 script = ExtResource("8_axg03")
 id = &"warden"
 display_name = "Warden of the Fold"
-max_hp = 3600
+max_hp = 36000
 radius = 42.0
 spawn_pos = Vector2(0, -150)
 phases = Array[ExtResource("2_f5abt")]([SubResource("Resource_pfjxl"), SubResource("Resource_4sp1g"), SubResource("Resource_ymr56"), SubResource("Resource_yqxmm")])

resources/enemies/drifter.tres

@@ -12,7 +12,7 @@ spread_deg = 20.0
 interval = 120
 radius = 6.0
 lifetime = 240
-damage = 10
+damage = 100
 
 [sub_resource type="Resource" id="Resource_lnbnj"]
 script = ExtResource("3_vpd04")
@@ -23,6 +23,7 @@ chance = 0.08
 script = ExtResource("4_k36hi")
 id = &"drifter"
 display_name = "Drifter"
+max_hp = 400
 speed = 55.0
 emitters = Array[ExtResource("1_bjhtk")]([SubResource("Resource_rsrg2")])
 pattern_loop_ticks = 120

resources/enemies/dummy.tres

@@ -8,7 +8,8 @@
 script = ExtResource("3_2tv1l")
 id = &"dummy"
 display_name = "Target Dummy"
-max_hp = 100000
+max_hp = 1000
 radius = 20.0
 move = 0
 visual = 3
+indestructible = true

resources/enemies/stalker.tres

@@ -13,7 +13,7 @@ interval = 45
 speed = 260.0
 radius = 6.0
 lifetime = 18
-damage = 14
+damage = 140
 kind = 3
 
 [sub_resource type="Resource" id="Resource_ep81w"]
@@ -25,7 +25,7 @@ chance = 0.08
 script = ExtResource("4_yp71e")
 id = &"stalker"
 display_name = "Stalker"
-max_hp = 30
+max_hp = 300
 radius = 12.0
 move = 3
 speed = 95.0

resources/enemies/turret.tres

@@ -11,6 +11,7 @@ count = 10
 spin_per_shot_deg = 18.0
 interval = 150
 speed = 130.0
+damage = 120
 
 [sub_resource type="Resource" id="Resource_fttpl"]
 script = ExtResource("3_hc01i")
@@ -21,7 +22,7 @@ chance = 0.08
 script = ExtResource("4_6rb75")
 id = &"turret"
 display_name = "Turret"
-max_hp = 70
+max_hp = 700
 radius = 16.0
 move = 0
 speed = 0.0