Add LICENSE, MODEL_CARD, requirements, CONTRIBUTING

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

CONTRIBUTING.md

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+# Contributing to Mortdecai
+
+Mortdecai improves through player interactions. Every prayer, sudo command, and bug report becomes training data for the next version.
+
+## How to Contribute
+
+### Play on the Server
+
+The simplest way to contribute: join the Minecraft server and interact with the AI.
+
+**Join:** [minecraft.mortdec.ai](https://minecraft.mortdec.ai)
+
+Things that generate valuable training data:
+- **Edge cases** — unusual items, complex enchantments, multi-step requests
+- **Natural language variety** — typos, slang, sarcasm, multiple languages
+- **Bug reports** — type `bug_log <description>` when something goes wrong
+- **Boundary testing** — try requesting things the AI shouldn't do
+
+### Submit Training Data (API)
+
+When the public API launches, you'll be able to submit training examples directly and earn inference credits. See the [API concept](https://git.mortdec.ai/Mortdecai/mortdecai-api).
+
+A training example is a prompt + expected output:
+
+```json
+{
+  "prompt": "sudo give me a trident with riptide 3 and loyalty 3",
+  "expected_output": {
+    "commands": [],
+    "reasoning": "Riptide and loyalty are mutually exclusive"
+  }
+}
+```
+
+Valuable contributions:
+- Commands the model gets wrong
+- Modded server commands
+- Non-English prompts
+- Negative examples ("this should fail because...")
+
+### Report Issues
+
+- In-game: `bug_log <description>`
+- Gitea: Open an issue on the relevant repo
+
+## What NOT to Submit
+
+- Commands containing real player data or personal information
+- Deliberately adversarial training data designed to make the model unsafe
+- Copyrighted content
+- Anything that violates the Minecraft EULA
+
+## Code of Conduct
+
+- Be respectful in all interactions
+- Report safety issues responsibly
+- Don't attempt to bypass the risk hierarchy
+- Have fun — this is a game, after all