docs: new root as prior history lost (orphan + GC); ~215 commits not recoverable

configs/bonfire/compose.yml

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+# koopa-bonfire — ground zero (host Caddy → :9021)
+services:
+  web:
+    image: docker.io/bonfirenetworks/bonfire:1.0.5-social-amd64
+    container_name: koopa-bonfire
+    restart: unless-stopped
+    env_file: [.env]
+    environment:
+      POSTGRES_HOST: db
+      HOSTNAME: bonfire.hacktivism.ch
+      PUBLIC_PORT: "443"
+      SERVER_PORT: "4000"
+      DB_MIGRATE_INDEXES_CONCURRENTLY: "false"
+      MIX_ENV: prod
+    ports:
+      - "9021:4000"
+    volumes:
+      - ./data/uploads:/opt/app/data/uploads
+      # Bind-mount into priv/static/images (Bonfire serves /images/* from there).
+      - ./data/branding/logo.svg:/opt/app/lib/bonfire-1.0.5-social/priv/static/images/hacktivism-logo.svg:ro
+      - ./data/branding/favicon.svg:/opt/app/lib/bonfire-1.0.5-social/priv/static/images/hacktivism-favicon.svg:ro
+    depends_on:
+      db:
+        condition: service_healthy
+    labels:
+      org.hacktivism.service: bonfire
+      org.hacktivism.host_port: "9021"
+      org.hacktivism.site: bonfire.hacktivism.ch
+      org.hacktivism.managed_by: koopa-admin
+    healthcheck:
+      test: ["CMD-SHELL", "wget -q -O /dev/null http://127.0.0.1:4000/ || exit 1"]
+      interval: 30s
+      timeout: 10s
+      retries: 15
+      start_period: 180s
+
+  db:
+    image: docker.io/library/postgres:15-alpine
+    container_name: koopa-bonfire-db
+    restart: unless-stopped
+    env_file: [.env]
+    environment:
+      POSTGRES_USER: postgres
+      POSTGRES_DB: bonfire_db
+    volumes:
+      - db-data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U postgres -d bonfire_db"]
+      interval: 5s
+      timeout: 5s
+      retries: 20
+      start_period: 10s
+
+volumes:
+  db-data: