Add verified verl bridge and community launch surface - #36

Summary

• add a fail-closed Level-3 bridge for the documented single-gpu-online-distillation-v1 subset of verl v0.8.0 at commit 7aed6b230776f963fa09509c10d9c3a767d1102c
• import a 14-field whitelist, convert the official Parquet chat schema reversibly, and export checksummed HF/PEFT/safetensors/Parquet artifacts plus six supported verl overrides
• require an immutable base-model revision, keep the LoRA adapter distinct from the base snapshot, and leave the reward scaffold fail-closed
• add five evidence-labelled community records, strict bridge doctor checks, exact upstream smoke, docs site, architecture/social assets, launch article, and 90-second demo
• state explicitly that distributed execution is not tested and no PPO/GRPO/Ray/FSDP/Megatron semantic parity is claimed

Evidence

• exact upstream: verl-project/verl@7aed6b230776f963fa09509c10d9c3a767d1102c (v0.8.0; observed package 0.8.0.dev0)
• official OmegaConf parse plus structured merge: passed
• required imported fields: 14/14; required exported fields: 6/6
• PEFT LoRA config, safetensors structure, tokenizer identity, Parquet train/val, reward import, privacy and 14 artifact hashes: passed
• committed smoke report SHA-256: d5266adc0f3ec46cf29f96a2f4258f03d848d846e62cbbe3ccdf5e014909bda7
• frozen calculator benchmark SHA-256 remains 53fc1d4d5b7adee09618d77ad62d4086ba56b78569832d6fc7c3bcd5c2695bbc; generated SVG byte comparison passed
• architecture SVG inspected at native size and 820 px README width; social preview inspected at 1280 x 640

Validation

• ruff check . and ruff format --check .
• mypy src/miniverl (103 source files)
• full non-GPU/non-network suite: 1,548 passed, 6 deselected; branch coverage 85.53%
• GPU/non-network: 3 passed
• network: 3 passed
• focused bridge/packaging suite: 124 passed
• Markdown/link checks, generated PyPI byte check, and mkdocs build --strict
• package build and Twine check; clean Python 3.10 wheel install, doctor and community export
• dev wheel SHA-256: aedbd05807037b2f6f76d9e4d51bc02e988c4e4899e3d0b18262f15191924100
• dev sdist SHA-256 after including mkdocs.yml: 3e3094b1a1089ac60d4173a7522899fa6e7968f34cb96fd34b8b72837fc7e4be