#95: the SCOREBOARD banked one missile per salvo -- credit the DELIVERED amount

Two consumers of one impact, only one was ever verified: the victim gets
TakeDamage{amount=per-missile, burstCount=cluster roll} and applies it
burstCount times (armor was always right); the score post on the next line
sent the bare per-missile amount. An LRM10 salvo dealing 7-35 armor banked
3.5 points -- Rajel's "~3 points to score", to the digit.

Ground truth: the binary's score is the victim handler's tally (amount once
per applied burst @0x4a04da + crit bonuses) reported to the INFLICTING
player (the id-0x16 tail, deferred #45). The shooter-side stand-in now
posts amount x burstCount -- the identical figure handed to the victim, at
the identical one-post-per-TakeDamage granularity. Same pass:

* splash never credited score at all -- the binary tallies every
  TakeDamage; now posted per splash victim (amount x falloff bursts);
* the bridge credited the LOCAL player for ANY registered hit -- AI-master
  fire on the player, a dying mech's death-blast splash; now refused
  unless the shooter IS the local vehicle (MP unaffected: only local fire
  carries live damage on a node);
* direct-fire unchanged -- beams author burstCount=1 (emitter.cpp:355).

Verified per the harness doctrine: single-node field composition (madcat,
real fire, real enemy) 22/22 impact credits paired at damage x burst, zero
bare 3.33 posts; two-node replicant-victim run BOTH directions 31/31
paired across three missile authorings (3.33/2.0/5.0 per-missile) + 25-pt
ballistics, leftovers all burst-1 beam amounts. test-harness.md gains the
map=grass note (MP.EGG authors cavern/night; GOTO mechs shoot rock).

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

context/test-harness.md

@@ -84,6 +84,12 @@ The vehicle sed must replace the WHOLE line (`s/^vehicle=.*/`), or you mint
 `vehicle=thr1bhk1` and the spawn FATALs. Chassis codes: ava1 bhk1 lok1/2 mad1/2
 own1 snd1 thr1 vul1 (own1 has NO arm zones — rack zones instead).
 
+**Weapon/combat benches need `map=grass time=day`.** `MP.EGG` authors
+`map=cavern time=night`; a bench that copies it without the map sed (e.g. via
+`bt_expert_egg` alone — mp_double.sh has this gap) parks the GOTO-driven mechs
+against cavern rock and they shoot terrain for the whole window. Always sed the
+map/time on the COPY, single-node and two-node alike.
+
 ### Two-node bench skeleton (the MP pattern)
 ```bash
 bt_assert_player_env