add README landing page

README.md

@@ -37,15 +37,18 @@ ContentOS, a reproducible English+Russian AI-text-detection ensemble.
 
 ## Reproducibility
 
-Anyone can clone the repo and reproduce all reported numbers:
-
-```bash
-git clone github.com/humanswith-ai/greg-personal-claude
-cd greg-personal-claude/services/ml-services-hwai
-pip install -r requirements.txt
-pytest tests/test_calibration_regression.py -v   # 8 baselines, 0.05s
-python scripts/eval_ensemble_corpus.py            # smoke battery, ~50 min
-```
+The full methodology and calibration corpus description are documented in
+`REPRODUCIBILITY.md`, which is sufficient for independent re-implementation
+of the ensemble.
+
+A public mirror with the evaluation scripts (`eval_ensemble_corpus.py`,
+8 pinned regression tests, atomic-swap deploy with 30-second rollback)
+will be released within ~2 weeks following the v1.12 RU recalibration
+chain. Target reproduction infrastructure: Hetzner CX43 (8 vCPU, no GPU,
+~€14/month) or equivalent.
+
+For early access before the public mirror, please open a discussion on
+this dataset.
 
 ## Cite as