launch: ask dsv41_fit.not_here directly (the launch tests stub the setup object)

strata_cli/launch/catalog.py

@@ -383,7 +383,8 @@ class Catalog:
             near = S.closest(family, list(families))
             raise ValueError(f"There is no model family called '{family}'." + (f" Did you mean '{near}'?" if near else "")
                              + " Families: " + ", ".join(families) + ".")
-        line = self.strata.dsv41_not_here(match) or (self.strata.dsv41_not_on_mac_line() if match in self.strata.dsv41_not_on_mac() and self._mac_hardware() else None)
+        from strata_control import dsv41_fit
+        line = dsv41_fit.not_here(match) or (dsv41_fit.MAC_NOT_YET_LINE if match in dsv41_fit.MAC_NOT_YET and self._mac_hardware() else None)
         if line:
             raise ValueError(line + " Use ist-das-2.00bpw or ist-das-2.25bpw.")
         offered = [f for f in families if match in self.strata.sizes_of(models, f)]

strata_cli/launch/runner.py

@@ -1309,8 +1309,9 @@ class Runner:
         if found is None:
             return False
         model, d, folder = found
-        if self.catalog.strata.dsv41_not_here(model):     # Mac: no Metal IQ1_S kernel yet; DGX Spark: never run; said before an engine or a download is touched
-            raise LaunchError(self.catalog.strata.dsv41_not_here(model),
+        from strata_control import dsv41_fit
+        if dsv41_fit.not_here(model):     # Mac: no Metal IQ1_S kernel yet; DGX Spark: never run; said before an engine or a download is touched
+            raise LaunchError(dsv41_fit.not_here(model),
                               "Use the 2.00 or 2.25 files (--model ist-das-2.00bpw or --model ist-das-2.25bpw, or --model-path to those files). "
                               "Nothing was downloaded or changed.", 2)
         if s.family and s.family != "deepseek41":

strata_cli/launch/screens.py

@@ -560,8 +560,9 @@ class ModelScreen(Base):
         if found is None:
             return False
         model, d, folder = found
-        if self.ctx.catalog.strata.dsv41_not_here(model):
-            self.say(self.ctx.catalog.strata.dsv41_not_here(model) + " Pick the 2.00 or 2.25 version from the list, or point to those files.", True)
+        from strata_control import dsv41_fit
+        if dsv41_fit.not_here(model):
+            self.say(dsv41_fit.not_here(model) + " Pick the 2.00 or 2.25 version from the list, or point to those files.", True)
             return True
         _layout, names, missing = mod.dsv41_parts(d, lambda n: (folder / n).exists())       # the pinned four-shard layout, or ISTA's six-shard one (0.2.8.1)
         if missing: