instructions/dev: Konverter-Vergleich – eigene Ableitung gegen Referenzwerkzeuge am privaten Korpus, sieben Maße, Grundlinie nur bewusst fortgeschrieben (#233); 10.1.0-beta.3

Files changed:
- CHANGES.md
- VERSION
- docs/dev/development.md
- instructions/dev/converter-comparison.md
- instructions/dev/stack-mode.md
- instructions/dev/testing-conventions.md

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SnAJ7Z3CpVD3PRbN73QtU2

instructions/dev/stack-mode.md

@@ -88,6 +88,10 @@ slash command for the operator, and stops.
   a tracker of your own, the nightly workflow (which you dispatch yourself after touching the
   Super Productivity surface), what a red night means, and refreshing the recorded fixtures.
   Read it before changing an adapter under `tools/chemenu/tasks/`.
+- [converter-comparison.md](converter-comparison.md) - whether a `raw derive` conversion is
+  *good*, not merely working: the converters against reference tools over the private corpus,
+  seven measures, markings judged against the original, a baseline moved only on purpose. Read it
+  before designing a converter change, after building one, and when the corpus gains a file.
 - [doc-pull-through.md](doc-pull-through.md) - which document makes a claim about a touched
   surface (a `wikitool` command, a stage's rules, an `AGENTS.md` rule/gate/invariant, a
   README-shaped human doc, a `docs/` page's reasoning) and therefore needs updating alongside