Split NoPre test group: JET -> canonical QA, sensitivity tests -> AD (#314)

The NoPre group mixed standard QA tooling (JET) with functional
SciMLSensitivity/Zygote/Tracker AD tests. Per the fleet rule, split them:

- QA (standard checks): now also carries JET. jet_tests.jl moves into the new
  test/qa env (Aqua + JET) alongside qa.jl, and the QA dispatch activates that
  env and runs both files. QA is set to versions ["lts","1"], ubuntu-only.
- AD (functional): the three SciMLSensitivity/Zygote/Tracker tests move from
  test/nopre into test/AD with their own env (the former nopre env minus JET).
  New [AD] group at versions ["lts","1"]; not run on prerelease.

The old [NoPre] key, test/nopre dir, and NoPre dispatch are removed. Test file
bodies are unchanged (moved verbatim); only config and dispatch were edited.

Co-authored-by: ChrisRackauckas-Claude <accounts@chrisrackauckas.com>
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: 3 people

test/nopre/Project.toml test/AD/Project.tomltest/nopre/Project.toml renamed to test/AD/Project.toml

@@ -3,7 +3,6 @@ ComponentArrays = "b0b7db55-cfe3-40fc-9ded-d10e2dbeff66"
 DiffEqCallbacks = "459566f4-90b8-5000-8ac3-15dfb0a30def"
 ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
 Functors = "d9f16b24-f501-4c13-a1f2-28368ffc5196"
-JET = "c3a54625-cd67-489e-a8e7-0a5a0ff4e31b"
 JLArrays = "27aeb0d3-9eb9-45fb-866b-73c2ecf80fcb"
 OrdinaryDiffEqLowOrderRK = "1344f307-1e59-4825-a18e-ace9aa3fa4c6"
 OrdinaryDiffEqTsit5 = "b1df2697-797e-41e3-8120-5422d3b24e4a"
@@ -22,7 +21,6 @@ DiffEqCallbacks = {path = "../.."}
 ComponentArrays = "0.15.18"
 ForwardDiff = "0.10.36"
 Functors = "0.5"
-JET = "0.9, 0.10, 0.11"
 JLArrays = "0.1, 0.2"
 OrdinaryDiffEqLowOrderRK = "2"
 OrdinaryDiffEqTsit5 = "2"

…t/nopre/integrating_sensitivity_tests.jl test/AD/integrating_sensitivity_tests.jltest/nopre/integrating_sensitivity_tests.jl renamed to test/AD/integrating_sensitivity_tests.jl test/nopre/integrating_sensitivity_tests.jl renamed to test/AD/integrating_sensitivity_tests.jl

@@ -0,0 +1,10 @@
+[deps]
+Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"
+DiffEqCallbacks = "459566f4-90b8-5000-8ac3-15dfb0a30def"
+JET = "c3a54625-cd67-489e-a8e7-0a5a0ff4e31b"
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+
+[compat]
+Aqua = "0.8"
+JET = "0.9, 0.10, 0.11"
+Test = "1"

…pre/integrating_sum_sensitivity_tests.jl …/AD/integrating_sum_sensitivity_tests.jltest/nopre/integrating_sum_sensitivity_tests.jl renamed to test/AD/integrating_sum_sensitivity_tests.jl test/nopre/integrating_sum_sensitivity_tests.jl renamed to test/AD/integrating_sum_sensitivity_tests.jl

@@ -1,11 +1,11 @@
 using SciMLTesting
 
-# The NoPre group is selectable by name only on non-prerelease Julia (the original
-# `GROUP == "NoPre" && isempty(VERSION.prerelease)` gate). Under "All" the NoPre
-# folder always ran regardless of prerelease, and folder-discovery's "All" globs the
-# NoPre folder unconditionally, so "All" is unaffected by this guard.
-if current_group() == "NoPre" && !isempty(VERSION.prerelease)
-    # prerelease Julia: GROUP=NoPre runs nothing, matching the original gate.
+# The AD group is selectable by name only on non-prerelease Julia (the AD/sensitivity
+# stack — SciMLSensitivity, Tracker, Zygote — does not support prerelease). Under "All"
+# the AD folder always ran regardless of prerelease, and folder-discovery's "All" globs
+# the AD folder unconditionally, so "All" is unaffected by this guard.
+if current_group() == "AD" && !isempty(VERSION.prerelease)
+    # prerelease Julia: GROUP=AD runs nothing, matching the original NoPre gate.
 else
     run_tests()
 end

test/nopre/saving_tracker_tests.jl test/AD/saving_tracker_tests.jltest/nopre/saving_tracker_tests.jl renamed to test/AD/saving_tracker_tests.jl

@@ -5,6 +5,7 @@ os = ["ubuntu-latest", "macos-latest", "windows-latest"]
 [QA]
 versions = ["lts", "1"]
 
-[NoPre]
-versions = ["1", "lts", "pre"]
-os = ["ubuntu-latest", "macos-latest", "windows-latest"]
+# SciMLSensitivity/Zygote/Tracker-backed AD tests. The AD stack does not
+# support prerelease Julia; deps live in test/AD/Project.toml.
+[AD]
+versions = ["lts", "1"]