ModularBot: [result] round/battle outcome log lines (TR_RESULT_LOG, default on)

One greppable '[result]' line per round plus one at battle end, stdout only:
  [result] round 3/7  WE WON    (enemy destroyed)  | us 42.1 energy, them 0.0, 812 ticks | rounds won 3/7
  [result] battle END: rounds won 4/7

Outcome is authoritative from RoundEndedEventForBot.results.rank (1 = winner);
death observations (our onDeath, enemy onBotDeath) and onWonRound refine it
into WE WON (enemy destroyed) / WE DIED (killed) / BOTH DIED (score decided) /
TIMEOUT (score decided). Our own death is reported the instant it happens.
TR_RESULT_LOG registers in the boot env report; default on, only explicit
off-values disable it. No behaviour change - logging/state only.

ModularBot_garage/src/env_report.nim

@@ -48,6 +48,7 @@ type
     trackerProbe*:     bool
     trackerProbePath*: string
     powerLog*:         bool
+    resultLog*:        bool
     gunStatsPath*:     string
     shotLogPath*:      string
     disabledGuns*:     HashSet[int]
@@ -186,6 +187,7 @@ proc printEffectiveValues(ctx: EnvReportContext) =
   emit("TR_VBULLET_ADMIT_ONLY", onOff(ctx.vBulletAdmitOnly),
        sourceOf("TR_VBULLET_ADMIT_ONLY"))
   emit("TR_POWER_LOG", onOff(ctx.powerLog), sourceOfPresence("TR_POWER_LOG"))
+  emit("TR_RESULT_LOG", onOff(ctx.resultLog), sourceOf("TR_RESULT_LOG"))
   emit("TR_RECORD_WORLDSTATE", onOff(ctx.recordWorldState),
        sourceOfPresence("TR_RECORD_WORLDSTATE"))
   emit("TR_RADAR_FORCE_SPIN", onOff(ctx.radarForceSpin),
@@ -417,6 +419,7 @@ proc knownEnvNames*(): seq[string] =
     "TR_RADAR_FORCE_SPIN", "TR_RADAR_SCANLOG", "TR_RADAR_SCAN_LOG_PATH",
     "TR_TRACKER_PROBE", "TR_TRACKER_PROBE_PATH", "TR_VBULLET_ADMIT_ONLY",
     "TR_POWER_LOG",
+    "TR_RESULT_LOG",
     "TR_RAM_OPPORTUNITY", "TR_RAM_OPP_DIST", "TR_RAM_OPP_MARGIN",
     "TR_RAM_ABORT_DMG", "TR_RAM_PLAN", "TR_RAM_PLAN_DIST",
     "TR_RAM_PLAN_MARGIN", "TR_RAM_PLAN_HITRATE", "TR_RAM_LOG",