Add working Dockerfile and fix plan to reflect Tampio's Python roots

Dockerfile

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+FROM ubuntu:24.04
+
+# Avoid interactive prompts during apt installs
+ENV DEBIAN_FRONTEND=noninteractive
+
+# libvoikko: the Finnish morphology library Tampio depends on
+# voikko-fi: the actual Finnish dictionary data
+RUN apt-get update && apt-get install -y \
+    libvoikko-dev \
+    voikko-fi \
+    python3 \
+    python3-libvoikko \
+    git \
+    && rm -rf /var/lib/apt/lists/*
+
+# Install Tampio directly from source (not on PyPI or npm)
+RUN git clone https://github.com/fergusq/tampio.git /opt/tampio
+
+# Handy wrapper so you can just call `tampio` from anywhere
+RUN echo '#!/bin/sh\npython3 /opt/tampio/tampio.py "$@"' > /usr/local/bin/tampio \
+    && chmod +x /usr/local/bin/tampio
+
+WORKDIR /tampiorama
+
+CMD ["/bin/bash"]