j134 fire fix: share ONE fire_tracker across tfil/ring/strafe/learned/surf (TR_FIRE_FIX, default on); env-gated TR_FIRE_DIAG alignment trace

common_libs/tests/test_tfil_commit_env.nim

@@ -131,7 +131,17 @@ proc testDefaultParity() =
   # regression — see the file header). With the pillar restored via
   # TR_TFIL_PILLAR_ON=1 the old golden would no longer match, by design.
   doAssert fileExists(goldenPath), "missing golden: " & goldenPath
+  # j134: the golden was generated from the SHIPPED detector.  Force the shipped
+  # fire-detection path (`TR_FIRE_FIX=0`) for this check so it still proves the
+  # PRE-CHANGE path is byte-identical.  The correction ON legitimately changes
+  # the path (it no longer drops an over-cap energy delta), which is the whole
+  # point of j134 — see `test_strafe_fire_fix.nim` for the per-behaviour checks.
+  when declared(TfilFireFix):
+    let savedFireFix = TfilFireFix
+    TfilFireFix = false
   let recs = replay(loadStates(), loadRoundStarts())
+  when declared(TfilFireFix):
+    TfilFireFix = savedFireFix
   var golden: seq[string]
   for rawLine in lines(goldenPath):
     if rawLine.startsWith("#"): continue