Add README with training progress chart and bake-off results

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

README.md

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+# Mortdecai
+
+A 9B parameter language model fine-tuned for Minecraft server operations. Translates natural language to commands, controls an AI God character, manages plugins, writes mcfunction scripts, and learns from its mistakes.
+
+**Base model:** Qwen3.5-9B | **Current version:** 0.5.0 | **Quantization:** Q4_K_M (5.6GB)
+
+## Training Progress
+
+![Training Progress](branding/training_progress.svg)
+
+## Bake-off: 0.5.0 vs 0.4.0
+
+| Category | 0.4.0 | 0.5.0 | Change |
+|----------|-------|-------|--------|
+| Enchantments | 20% | 67% | **+47%** |
+| EssentialsX | 0% | 60% | **+60%** |
+| Effects | 0% | 25% | **+25%** |
+| Basic commands | 75% | 75% | — |
+| Teleport | 100% | 100% | — |
+| Overall | 45.2% | 46.8% | +1.6% |
+
+## Architecture
+
+**17 tools** across 5 categories:
+
+| Category | Tools |
+|----------|-------|
+| Execution | `rcon.execute` |
+| Knowledge | `minecraft.wiki_lookup`, `plugin.docs_lookup`, `minecraft.changelog_lookup`, `paper.docs_lookup` |
+| World | `world.player_info`, `world.server_state`, `world.nearby_entities` |
+| Memory | `memory.read`, `memory.write` |
+| Scripts | `script.write`, `script.validate`, `script.execute`, `script.read`, `script.list`, `script.delete`, `script.schedule` |
+
+**Plugins:** FastAsyncWorldEdit, WorldGuard, CoreProtect, EssentialsX, Vault, LuckPerms
+
+## Training Data
+
+~20,000+ examples from:
+- Hand-curated seed data (3,196)
+- Tool-calling sequences with 17 tools (1,430)
+- IGLU build dataset — Microsoft Research (4,656)
+- RCON-validated plugin examples (104)
+- Exploration self-play with wiki grounding (150)
+- Self-play across 3 GPUs (2,900+)
+- Live server audit from wolf bots + real players (8,000+)
+
+## Infrastructure
+
+| GPU | Role |
+|-----|------|
+| RTX 3090 Ti (24GB) | Training + self-play |
+| RTX 2080 Ti (11GB) | Exploration self-play |
+| Quadro RTX 4000 (8GB) | Production inference — 3 MC servers |
+| GTX 1660 Super (6GB) | Prompt generation |
+
+**GPU Scheduler:** [gpu.sethpc.xyz](https://gpu.sethpc.xyz) — preset-based job scheduler with live monitoring
+
+## Links
+
+- **Play:** `minecraft.mortdec.ai`
+- **Model card:** [MODEL_CARD.md](MODEL_CARD.md)
+- **Domain:** [mortdec.ai](https://mortdec.ai)