Add submission card

SUBMISSION.md

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+# Counsel-Env Submission Card
+
+## Public Links
+
+- Space: https://huggingface.co/spaces/heavycoderhh/counsel-env
+- Live demo: https://heavycoderhh-counsel-env.hf.space/demo
+- Trained checkpoint: https://huggingface.co/heavycoderhh/counsel-env-qwen3-0.6b-grpo-run2
+- Trained eval artifacts: https://huggingface.co/heavycoderhh/counsel-env-qwen3-0.6b-grpo-run2/tree/main/eval
+
+## Verification Snapshot
+
+- Space visibility: public
+- Space runtime: `RUNNING` on `cpu-basic`
+- Checkpoint visibility: public
+- Checkpoint SHA: `a4b4693e0615e97e78e13318d5389c30aabddcc0`
+- Space SHA: `8fb858c9f441779893e0d4383b362cfd8820bd66`
+
+## Held-Out Results
+
+| Agent | Episodes | Avg Reward | Primary Reward | Trigger Rate | Surface Rate |
+| --- | ---: | ---: | ---: | ---: | ---: |
+| random | 30 | 0.000 | 0.000 | 0.000 | 0.000 |
+| keyword_spam | 30 | 0.073 | 0.000 | 0.678 | 0.000 |
+| present_all | 30 | 0.000 | 0.000 | 0.000 | 0.000 |
+| trained_sft_grpo_run2 | 30 | 0.387 | 0.461 | 0.589 | 0.461 |
+| scripted_oracle | 30 | 0.902 | 0.950 | 0.950 | 0.950 |
+
+## Local Proof Artifacts
+
+- `assets/trained_eval/trained_eval_summary.json`
+- `assets/trained_eval/trained_eval_rows.csv`
+- `assets/trained_eval/trained_eval_rows.jsonl`
+- `assets/trained_eval/trained_eval_transcripts.md`
+- `assets/heldout_eval_summary.json`
+- `assets/transcripts/before_after_pairs.md`
+- `assets/demo/video_script.md`
+- `assets/demo/blog_draft.md`
+
+## Local Validation
+
+```bash
+python pre_hf_validate.py
+python -m pytest -p no:cacheprovider -q
+```