initial switch to a devcontainer

.devcontainer/devcontainer.json

@@ -0,0 +1,22 @@
+{
+    "name": "max",
+    "dockerComposeFile": "compose.yml",
+    "service": "dev",
+    "workspaceFolder": "/workspaces/max",
+    "remoteUser": "dev",
+    "features": {
+        // moby=false: Moby packages are not available for Debian trixie, use Docker CE.
+        "ghcr.io/devcontainers/features/docker-outside-of-docker:1": {
+            "moby": false
+        }
+    },
+    // Bind mounts are resolved by the host's daemon, so they need host paths:
+    // use ${LOCAL_WORKSPACE_FOLDER} instead of paths inside this container.
+    "remoteEnv": {
+        "LOCAL_WORKSPACE_FOLDER": "${localWorkspaceFolder}"
+    },
+    "postCreateCommand": "pip install -U pip && pip install -U -r requirements.txt -r requirements-dev.txt",
+    "forwardPorts": [
+        8000
+    ]
+}