Add CONVERSATION.md linking paper fork and vanilla repos with AI context

CONVERSATION.md

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+# Project Conversation Context
+
+This document links the two Minecraft AI God projects together, describes their Gitea repos, and serves as the AI conversation anchor for both.
+
+---
+
+## The Two Projects
+
+### Sister repo — minecraft-ai-god (Vanilla)
+
+- **Local path:** `/root/bin/Sethpc-Minecraft`
+- **Gitea:** `https://git.sethpc.xyz/Seth/minecraft-ai-god`
+- **Purpose:** Vanilla Minecraft 1.21.x, no plugins or mods. All automation via log watching + RCON. Targets the mc1 server (port 25565) and shrink-world server (port 25566) on CT 644.
+- **Key services:** `mc-godmode.service`, `mc-shrink-kit.service`, `mc-aigod.service`
+- **AI features:** `pray` chat trigger → Ollama LLM → structured JSON → RCON execution; divine intervention timer; shrink-world kit/stats watcher
+
+### This repo — minecraft-ai-god-paper-fork (Paper Advanced Fork)
+
+- **Local path:** `/root/bin/Sethpc-Minecraft-PaperFork`
+- **Gitea:** `https://git.sethpc.xyz/Seth/minecraft-ai-god-paper-fork`
+- **Purpose:** Dedicated Paper server on port 25567 with plugins (FastAsyncWorldEdit, LuckPerms). Extends the vanilla branch with build templates, expanded command set, sudo translator mode, and LangGraph-style session gateway.
+- **Key services:** `mc-paper-ai.service`, `mc-aigod-paper.service`, `mc-langgraph-gateway.service`
+- **AI features:** All vanilla features + `sudo build/make/create` deterministic templates, `sudo lookup/wiki/search`, LangGraph gateway sidecar (FastAPI on 127.0.0.1:8091), SQLite session persistence
+
+---
+
+## Relationship Between the Two
+
+This Paper fork is a **direct evolution** of the vanilla repo. They share:
+
+- Same `pray`/`bible`/`sudo` trigger style and chat patterns
+- Same two-call LLM split (message + commands JSON schema)
+- Same RCON helper (raw socket, no library)
+- Same command validation + syntax repair pipeline
+- Same intervention timer design (Poisson process, presence guard)
+
+This fork **adds on top of** the vanilla base:
+
+- Plugin-enabled command families (`fill`, `setblock`, `clone`)
+- Deterministic build templates before LLM translation
+- LangGraph gateway with session memory and tool loop
+- `server_type` gating so paper commands don't leak to vanilla targets
+
+Both can run simultaneously — they use separate ports, services, and config files.
+
+---
+
+## Gitea Backup Workflow
+
+Both repos push every committed change to Gitea. This is the standard workflow:
+
+```bash
+# From either local repo dir:
+git add -A
+git commit -m "<description of change>"
+git push origin main
+```
+
+Both remotes are pre-configured with token auth:
+
+- Vanilla: `https://Seth:<token>@git.sethpc.xyz/Seth/minecraft-ai-god.git`
+- Paper fork: `https://Seth:<token>@git.sethpc.xyz/Seth/minecraft-ai-god-paper-fork.git`
+
+The Gitea instance lives at `git.sethpc.xyz` (CT 146, node-173, 192.168.0.125).  
+API key: see `GITEA_API.md` in this repo.
+
+**Convention:** commit every meaningful change immediately. Commits are the changelog — no squashing, no batching unrelated changes.
+
+---
+
+## AI Conversation Notes
+
+This section captures decisions and context accumulated across conversations with the AI assistant (OpenCode/Claude). Update it as significant choices are made.
+
+### Architecture decisions
+
+- **No plugins on vanilla servers.** All mc1 and shrink-world automation is pure log-tail + RCON. This keeps the vanilla experience intact and requires no server restarts for updates.
+- **Paper fork is separate, not a branch.** Running both as separate services on separate ports was chosen over a single multi-mode script to keep failure domains isolated.
+- **LLM backend:** Ollama at `192.168.0.179:11434` for the vanilla service. This fork uses `192.168.0.141:11434` (steel141, local GPU) for better throughput on heavier models (gemma3:12b message model, qwen3-coder:30b command model).
+- **Session gateway (this fork only):** The LangGraph-style FastAPI sidecar adds multi-turn memory without requiring a full LangGraph install. Safety enforcement stays in `mc_aigod_paper.py`, not the gateway.
+- **Build templates:** Deterministic templates are tried first for `sudo build/make/create` requests. LLM translation is the fallback. This reduces surprises for structure generation tasks.
+
+### Infrastructure decisions
+
+- **mc1 autoStart:** Set to `true` in MCSManager instance config (`/opt/mcsmanager/daemon/data/InstanceConfig/d39f55861cb34204a92a18a9e1c78ca6.json`) so the server starts on CT 644 boot. `mc-godmode.service` uses `tail -F` and handles the log appearing late gracefully.
+- **mc-godmode.service startup:** Already enabled (`systemctl is-enabled` = enabled), `WantedBy=multi-user.target`, `After=mcsm-daemon.service`. The service was not failing — the MC server itself wasn't auto-starting (fixed by enabling autoStart in MCSManager config).
+- **Paper server location:** `/opt/paper-ai-25567/` on CT 644. Separate from MCSManager-managed instances.
+
+### Open threads / next ideas
+
+- Prayer history log (JSON) for review and tuning
+- God mood / divine disposition score persisted across restarts
+- Redis backend for gateway sessions (currently SQLite only)
+- MCP-based tool adapters in the gateway tool loop
+- Richer LangGraph state machine planner node (currently lightweight heuristic router)
+- Optional tool trace exposure in-game debug mode
+- Web dashboard for recent prayers + God responses (n8n or simple Flask)
+- Stricter command schema output at the model/gateway side