fix: Docker full or minimal, make docker, README clean

Dockerfile now conditionally builds with minimal requirements or full
requirements if docker build --build-arg BUILD=full set.

Makefile now has `make docker` which will build a full requirements and
let you edit your development source

README is markdownlint'ed

Dockerfile

@@ -1,12 +1,20 @@
-FROM python:3.11.5-bookworm
+# https://stackoverflow.com/questions/31528384/conditional-copy-add-in-dockerfile
+# full means do a full requirements copy
+ARG BUILD=base
 
-RUN mkdir SlashGPT
-WORKDIR /SlashGPT
+FROM python:3.11.5-bookworm as slashgpt_base
+ONBUILD COPY requirements.txt requirements.txt
+
+FROM python:3.11.5-bookworm as slashgpt_full
+ONBUILD COPY requirements/full.txt requirements.txt
+
+# hadolint ignore=DL3006
+FROM slashgpt_${BUILD}
+RUN pip install --no-cache-dir -r requirements.txt && \
+    pip install --no-cache-dir playsound==1.3.0
 
+WORKDIR /SlashGPT
 RUN git clone https://github.com/snakajima/SlashGPT.git
 
 WORKDIR /SlashGPT/SlashGPT
-
-RUN pip install -r requirements.txt
-RUN pip install playsound
-COPY .env .env
+COPY .env .env

Makefile

@@ -30,3 +30,14 @@ before_commit:
 	make test
 	make format
 	make lint
+
+## docker: run docker development environment with full requirements
+.PHONY: docker
+docker:
+	docker build --build-arg BUILD=full -t slashgpt .
+	docker run -it -v "$(PWD):/SlashGPT/SlashGPT" slashgpt python -m pdb SlashGPT.py
+
+## dev: run debugging environment in poetry
+.PHONY: dev
+dev:
+	poetry run python -m pdb SlashGPT.py