Combat stats pass: anchor-derived stats and canonical arena suite

Derive all combat stats from documented anchors (content_design.md,
'Combat stat anchors'): weapon DPS ~0.6 per threat with a mild size
discount traded for range (railgun m/l damage 17/70), hull HP at 15
per hull threat (drone 60 up to capitals 15500), armor at a 20/threat
premium (armor_plates 640 HP), repair at ~2 HP/s per threat (25 HP per
cycle), salvager range fixed to 60 m with cargo 20, and a monotone
mobility ladder (the placeholder drone was the least agile ship).
Stations anchored to 'a fresh station holds one early parity wave';
enemy level 0 matches the player station and scales per push. HQ 5000
HP. scrap_despawn_seconds 30 -> 120 so capital-sized scrap drops are
collectable.

Rewrite balancing.toml as the canonical 12-arena suite: class mirrors,
equal-threat cross-tier matchups with counts from the verified threat
values, a two-to-one decisiveness check, armored-vs-glass and
repair-escort doctrine matchups, and station assault. The carrier
arena is expected to lose until drone launching exists (hangar is dead
threat) - documented, not stat-compensated.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DyCu8vwChKMbLJQ3xosYEN

bin/app/data/config/ships.toml

@@ -31,14 +31,14 @@ materials = [{item = "drone_hull", amount = 1}]
 production_time_seconds = 1
 
 [ship.health]
-hp = 3
+hp = 60
 
 [ship.movement]
-speed_mps = 40
-main_acceleration_mpss = 2
-maneuvering_acceleration_mpss = 1
-angular_acceleration_radpss = 12.56
-max_rotation_speed_radps = 6.28
+speed_mps = 45
+main_acceleration_mpss = 60
+maneuvering_acceleration_mpss = 30
+angular_acceleration_radpss = 12
+max_rotation_speed_radps = 6
 
 [ship.sensor]
 sensor_range_m = 150
@@ -66,12 +66,12 @@ materials = [{item = "frigate_hull", amount = 1}]
 production_time_seconds = 2
 
 [ship.health]
-hp = 30
+hp = 300
 
 [ship.movement]
-speed_mps = 30
-main_acceleration_mpss = 50
-maneuvering_acceleration_mpss = 25
+speed_mps = 35
+main_acceleration_mpss = 45
+maneuvering_acceleration_mpss = 22
 angular_acceleration_radpss = 8
 max_rotation_speed_radps = 4
 
@@ -102,12 +102,12 @@ materials = [{item = "destroyer_hull", amount = 1}]
 production_time_seconds = 3
 
 [ship.health]
-hp = 50
+hp = 550
 
 [ship.movement]
-speed_mps = 25
-main_acceleration_mpss = 40
-maneuvering_acceleration_mpss = 20
+speed_mps = 30
+main_acceleration_mpss = 35
+maneuvering_acceleration_mpss = 18
 angular_acceleration_radpss = 6
 max_rotation_speed_radps = 3
 
@@ -139,12 +139,12 @@ materials = [{item = "cruiser_hull", amount = 1}]
 production_time_seconds = 4
 
 [ship.health]
-hp = 120
+hp = 1500
 
 [ship.movement]
-speed_mps = 20
-main_acceleration_mpss = 30
-maneuvering_acceleration_mpss = 15
+speed_mps = 24
+main_acceleration_mpss = 25
+maneuvering_acceleration_mpss = 12
 angular_acceleration_radpss = 4
 max_rotation_speed_radps = 2
 
@@ -179,12 +179,12 @@ materials = [{item = "battlecruiser_hull", amount = 1}]
 production_time_seconds = 5
 
 [ship.health]
-hp = 180
+hp = 2700
 
 [ship.movement]
-speed_mps = 18
-main_acceleration_mpss = 25
-maneuvering_acceleration_mpss = 12
+speed_mps = 20
+main_acceleration_mpss = 20
+maneuvering_acceleration_mpss = 10
 angular_acceleration_radpss = 3
 max_rotation_speed_radps = 1.5
 
@@ -222,12 +222,12 @@ materials = [{item = "battleship_hull", amount = 1}]
 production_time_seconds = 6
 
 [ship.health]
-hp = 350
+hp = 7500
 
 [ship.movement]
-speed_mps = 14
-main_acceleration_mpss = 18
-maneuvering_acceleration_mpss = 8
+speed_mps = 15
+main_acceleration_mpss = 14
+maneuvering_acceleration_mpss = 7
 angular_acceleration_radpss = 2
 max_rotation_speed_radps = 1
 
@@ -267,12 +267,12 @@ materials = [{item = "dreadnought_hull", amount = 1}]
 production_time_seconds = 8
 
 [ship.health]
-hp = 800
+hp = 15500
 
 [ship.movement]
-speed_mps = 8
-main_acceleration_mpss = 10
-maneuvering_acceleration_mpss = 5
+speed_mps = 10
+main_acceleration_mpss = 8
+maneuvering_acceleration_mpss = 4
 angular_acceleration_radpss = 1
 max_rotation_speed_radps = 0.5
 
@@ -308,12 +308,12 @@ materials = [{item = "carrier_hull", amount = 1}]
 production_time_seconds = 8
 
 [ship.health]
-hp = 700
+hp = 15500
 
 [ship.movement]
-speed_mps = 9
-main_acceleration_mpss = 10
-maneuvering_acceleration_mpss = 5
+speed_mps = 10
+main_acceleration_mpss = 8
+maneuvering_acceleration_mpss = 4
 angular_acceleration_radpss = 1
 max_rotation_speed_radps = 0.5