j151 (default-off): hard arrival bound TR_TFIL_ARRIVE_TICKS + the offline per-pick ruler that found it

Measures the owner's two complaints per pick (turn angle, heat on the path
vs at the destination, time-to-arrive, and whether the destination is hot on
the recorded true future when we would arrive), split by empty vs non-empty
safe set. Result: the path IS scored (hard filter + least-hot fallback), but
there was NO time term at all -- 65% of picks outran the 15-tick commitment
and the chosen tile was reached 6.5% of the time. The bound refuses a
candidate we cannot reach in TR_TFIL_ARRIVE_TICKS (default 0 = off = today).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

ModularBot_garage/src/env_report.nim

@@ -313,6 +313,8 @@ proc printEffectiveValues(ctx: EnvReportContext) =
        sourceOf("TR_TFIL_CORRIDOR_HEAT"))
   emit("TR_TFIL_CORRIDOR_TICKS", $the_floor_is_lava.TfilCorridorTicks,
        sourceOf("TR_TFIL_CORRIDOR_TICKS"))
+  emit("TR_TFIL_ARRIVE_TICKS", $the_floor_is_lava.TfilArriveTicks,
+       sourceOf("TR_TFIL_ARRIVE_TICKS"))
   emit("TR_TFIL_WALL_HOTNESS", $the_floor_is_lava_ring.WallHotness,
        sourceOf("TR_TFIL_WALL_HOTNESS"))
   emit("TR_TFIL_WALL_RADIANCE", $the_floor_is_lava.WallRadiance,
@@ -649,7 +651,7 @@ proc knownEnvNames*(): seq[string] =
     "TR_RAM_PLAN_MARGIN", "TR_RAM_PLAN_HITRATE", "TR_RAM_LOG",
     "TR_TFIL_RANGE_LO", "TR_TFIL_RANGE_HI", "TR_TFIL_RANGE_TEMP",
     "TR_TFIL_RANGE_K", "TR_TFIL_CORRIDOR_HEAT", "TR_TFIL_WALL_HOTNESS",
-    "TR_TFIL_CORRIDOR_TICKS",
+    "TR_TFIL_CORRIDOR_TICKS", "TR_TFIL_ARRIVE_TICKS",
     "TR_TFIL_WALL_RADIANCE", "TR_TFIL_BULLET_CORE", "TR_TFIL_BULLET_AURA",
     "TR_TFIL_TILE_REPLAN", "TR_TFIL_COMMIT_TICKS", "TR_TFIL_NO_REV",
     "TR_TFIL_COMMIT_LOG", "TR_TFIL_COMMIT_ARRIVAL", "TR_TFIL_COMMIT_MARGIN",