Add Conduit Docker Compose configuration (#183)

infra/matrix/docker-compose.yml

@@ -0,0 +1,51 @@
+version: "3.8"
+
+services:
+  conduit:
+    image: docker.io/girlbossceo/conduit:v0.8.0
+    container_name: timmy-conduit
+    restart: unless-stopped
+    volumes:
+      - ./conduit.toml:/etc/conduit/conduit.toml:ro
+      - conduit-data:/var/lib/matrix-conduit
+    environment:
+      - CONDUIT_CONFIG=/etc/conduit/conduit.toml
+      # Override secrets via env (see .env)
+      - CONDUIT_REGISTRATION_TOKEN=${CONDUIT_REGISTRATION_TOKEN}
+      - CONDUIT_DATABASE_PASSWORD=${CONDUIT_DATABASE_PASSWORD}
+    ports:
+      # Only expose on localhost; reverse proxy forwards from 443
+      - "127.0.0.1:6167:6167"
+    networks:
+      - matrix
+    healthcheck:
+      test: ["CMD", "wget", "-q", "--spider", "http://127.0.0.1:6167/_matrix/static/"]
+      interval: 30s
+      timeout: 5s
+      retries: 3
+      start_period: 10s
+
+  # Optional: Element Web client (self-hosted)
+  element-web:
+    image: vectorim/element-web:latest
+    container_name: timmy-element
+    restart: unless-stopped
+    volumes:
+      - ./element-config.json:/app/config.json:ro
+    environment:
+      - default_server_config.homeserver.base_url=https://${MATRIX_DOMAIN}
+      - default_server_config.homeserver.server_name=${MATRIX_DOMAIN}
+    ports:
+      - "127.0.0.1:8080:80"
+    networks:
+      - matrix
+    profiles:
+      - element  # docker compose --profile element up -d
+
+volumes:
+  conduit-data:
+    driver: local
+
+networks:
+  matrix:
+    driver: bridge