Mr. Drew's Assignment Creator — Docker share build

Self-contained Dockerized build for end users. Run via docker compose;
see README.md for setup. Source-only, no sample data or build artifacts.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

docker/docker-compose.linux.yml

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+# Linux variant — run:  docker compose -f docker-compose.linux.yml up -d
+#
+# Uses host networking, so the container sees Ollama / LM Studio on plain
+# localhost exactly like a native install. No URL or firewall fiddling, and
+# Ollama can stay bound to 127.0.0.1. (Host networking is a Linux-only
+# Docker feature; macOS/Windows users should use docker-compose.yml.)
+services:
+  assignment-creator:
+    build:
+      context: ..
+      dockerfile: docker/Dockerfile
+    network_mode: host # app serves on localhost:3000, talks to localhost:11434
+    volumes:
+      - assignment-data:/app/data
+    restart: unless-stopped
+
+volumes:
+  assignment-data: