add devcontainer

.devcontainer/devcontainer.json

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+// For format details, see https://aka.ms/devcontainer.json. For config options, see the
+// README at: https://github.com/devcontainers/templates/tree/main/src/python
+{
+	"name": "Python 3",
+	// Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+	"image": "homeassistant/home-assistant:dev",
+	"postCreateCommand": "scripts/setup",
+	"forwardPorts": [
+        8123
+    ],
+    "portsAttributes": {
+        "8123": {
+            "label": "Home Assistant",
+            "onAutoForward": "notify"
+        }
+    }
+
+	// Features to add to the dev container. More info: https://containers.dev/features.
+	// "features": {},
+
+	// Use 'forwardPorts' to make a list of ports inside the container available locally.
+	// "forwardPorts": [],
+
+	// Use 'postCreateCommand' to run commands after the container is created.
+	// "postCreateCommand": "pip3 install --user -r requirements.txt",
+
+	// Configure tool-specific properties.
+	// "customizations": {},
+
+	// Uncomment to connect as root instead. More info: https://aka.ms/dev-containers-non-root.
+	// "remoteUser": "root"
+}

scripts/develop

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+#!/usr/bin/env bash
+
+set -e
+
+cd "$(dirname "$0")/.."
+
+# Create config dir if not present
+if [[ ! -d "${PWD}/config" ]]; then
+    mkdir -p "${PWD}/config"
+    hass --config "${PWD}/config" --script ensure_config
+fi
+
+# Set the path to custom_components
+## This let's us have the structure we want <root>/custom_components/integration_blueprint
+## while at the same time have Home Assistant configuration inside <root>/config
+## without resulting to symlinks.
+export PYTHONPATH="${PYTHONPATH}:${PWD}/custom_components"
+
+# Start Home Assistant
+hass --config "${PWD}/config" --debug

scripts/setup

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+#!/usr/bin/env bash
+
+set -e
+
+cd "$(dirname "$0")/.."
+
+pip install rich pysmartthings