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/modules.toml

@@ -57,7 +57,7 @@ fill_color = "#FF8040"
 glyph = "Rm"
 
 [module.weapon]
-damage = 10
+damage = 17
 attack_range_m = 70
 attack_rate_hz = 1.5
 
@@ -76,7 +76,7 @@ fill_color = "#FF8040"
 glyph = "Rl"
 
 [module.weapon]
-damage = 40
+damage = 70
 attack_range_m = 100
 attack_rate_hz = 0.8
 
@@ -94,8 +94,8 @@ fill_color = "#AACC44"
 glyph = "Sv"
 
 [module.salvage]
-collection_range_m = 500
-cargo_capacity = 10
+collection_range_m = 60
+cargo_capacity = 20
 collection_rate_hz = 0.5
 
 
@@ -110,7 +110,7 @@ glyph = "Rp"
 
 [module.repair]
 repair_rate_hz = 1
-repair_amount_hp = 6
+repair_amount_hp = 25
 repair_range_m = 80
 
 # -----------------------------------------------------------------------------
@@ -158,7 +158,7 @@ fill_color = "#808080"
 glyph = "A"
 
 [module.health]
-added_hp = 40
+added_hp = 640
 
 
 [[module]]