build(devcontainer): migrate onto the shared devbase Feature

.devcontainer/.dockerignore

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+# The devcontainer metadata is read by the CLI, not by the image build, so
+# keeping it out of the build context avoids a needless cache invalidation on
+# every edit to devcontainer.json.
+devcontainer.json
+devcontainer-lock.json
+env-info.conf

.devcontainer/env-info.conf

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+# Drives the on-attach banner the devbase Feature prints. Sourced as shell, so
+# quote values containing spaces. Every setting is optional; see
+# https://github.com/centralnicgroup-opensource/rtldev-middleware-devcontainer-features
+
+TITLE="PYTHON-SDK - development environment"
+
+SHOW_PYTHON=true
+SHOW_NODE=auto
+
+# Node is here for the release tooling only, not for the product code.
+NODE_DEPS="semantic-release"

.devcontainer/post-create.sh

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+#!/usr/bin/env zsh
+# shellcheck shell=bash
+# Python dependency install for this repository.
+#
+# Runs after the devbase Feature's own post-create, so pnpm, the global packages
+# and the package.json dependencies are already in place. Everything the previous
+# version of this script did besides the pip steps -- installing pnpm and the
+# global packages, sourcing ~/.zshrc, symlinking ~/.gitconfig and ~/.zsh_history
+# out of /WSL_USER -- is devbase's job now.
+set -e
+
+echo "=> Upgrading pip and installing pip-tools"
+pip install --upgrade pip setuptools pip-tools
+
+echo "=> Compiling requirements.txt from pyproject.toml"
+pip-compile pyproject.toml
+
+echo "=> Installing dependencies"
+pip install -r requirements.txt
+
+echo "=> Installing centralnicreseller as an editable package"
+pip install -e .