✨(project) Django boilerplate

This commit introduces a boilerplate inspired by https://github.com/numerique-gouv/impress.
The code has been cleaned to remove unnecessary Impress logic and dependencies.

Changes made:
- Removed Minio, WebRTC, and create bucket from the stack.
- Removed the Next.js frontend (it will be replaced by Vite).
- Cleaned up impress-specific backend logics.

The whole stack remains functional:
- All tests pass.
- Linter checks pass.
- Agent Connexion sources are already set-up.

Why clear out the code?

To adhere to the KISS principle, we aim to maintain a minimalist codebase. Cloning Impress
allowed us to quickly inherit its code quality tools and deployment configurations for staging,
pre-production, and production environments.

What’s broken?
- The tsclient is not functional anymore.
- Some make commands need to be fixed.
- Helm sources are outdated.
- Naming across the project sources are inconsistent (impress, visio, etc.)
- CI is not configured properly.

This list might be incomplete. Let's grind it.

bin/state

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+set -eo pipefail
+
+source "$(dirname "${BASH_SOURCE[0]}")/_config.sh"
+
+project=$(_set_openstack_project)
+echo "Using \"${project}\" project..."
+
+source "${TERRAFORM_DIRECTORY}/${project}/openrc.sh"
+
+# Run Terraform commands in the Hashicorp docker container via docker compose
+# shellcheck disable=SC2068
+DOCKER_USER="$(id -u):$(id -g)" \
+    PROJECT="${project}" \
+    docker compose run --rm \
+    -e OS_AUTH_URL \
+    -e OS_IDENTITY_API_VERSION \
+    -e OS_USER_DOMAIN_NAME \
+    -e OS_PROJECT_DOMAIN_NAME \
+    -e OS_TENANT_ID \
+    -e OS_TENANT_NAME \
+    -e OS_USERNAME \
+    -e OS_PASSWORD \
+    -e OS_REGION_NAME \
+    terraform-state "$@"