Combat stats round 2 from arena round 1 findings

Round 1 findings: concentrated fleets won all four equal-threat
cross-tier matchups flawlessly; glass destroyers beat armored; repair
escort beat raw numbers flawlessly; two stations annihilated a 3x
threat swarm through 200 m approach fire; team 1 won all three mirror
matches (possible sim bias, recorded as action item 6, plus action
item 7 for HP-margin logging).

Knob changes, deliberately few for clean attribution: concentration
tax on m/l gun DPS (railgun_m damage 17 -> 14, railgun_l 70 -> 52),
armor_plates 640 -> 1000 HP (~31 HP/threat: killing removes enemy DPS
while surviving merely delays, so HP must be cheaper than DPS), repair
25 -> 12 HP per cycle (~1 HP/s per threat: in-combat sustain removes
enemy DPS and must be priced like DPS), station range 200 -> 120. Gun
ranges untouched; if concentration still wins flawlessly in round 2,
the range ladder is the next suspect. Anchors and findings documented
in content_design.md; fitted threat values are unaffected by stat
changes, so the arena suite counts stay valid.

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 = 17
+damage = 14
 attack_range_m = 70
 attack_rate_hz = 1.5
 
@@ -76,7 +76,7 @@ fill_color = "#FF8040"
 glyph = "Rl"
 
 [module.weapon]
-damage = 70
+damage = 52
 attack_range_m = 100
 attack_rate_hz = 0.8
 
@@ -110,7 +110,7 @@ glyph = "Rp"
 
 [module.repair]
 repair_rate_hz = 1
-repair_amount_hp = 25
+repair_amount_hp = 12
 repair_range_m = 80
 
 # -----------------------------------------------------------------------------
@@ -158,7 +158,7 @@ fill_color = "#808080"
 glyph = "A"
 
 [module.health]
-added_hp = 640
+added_hp = 1000
 
 
 [[module]]