implemented compose by url, parse, local yaml.

roles/requarks/upstream/SOURCE.md

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+# Upstream Snapshot
+
+This directory stores copied upstream reference files for the `requarks` role.
+
+See `docs/upstream-sources.yml` for repository URLs, refs, README paths, Compose paths, and verification status.
+
+Snapshot files are reference material only. Deployments are generated from this role's `templates/` directory.

roles/requarks/upstream/docker-compose.yml

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+services:
+  wiki:
+    image: ghcr.io/requarks/wiki:2
+    depends_on:
+      - wiki-db
+    environment:
+      DB_TYPE: postgres
+      DB_HOST: wiki-db
+      DB_PORT: 5432
+      DB_USER: wikijs
+      DB_PASS: "changeme"
+      DB_NAME: wiki
+    restart: unless-stopped
+    networks:
+      - default
+      - web-backend
+
+  wiki-db:
+    image: postgres:17-alpine
+    environment:
+      POSTGRES_DB: wiki
+      POSTGRES_PASSWORD: "changeme"
+      POSTGRES_USER: wikijs
+    logging:
+      driver: none
+    restart: unless-stopped
+    volumes:
+      - wiki-db-data:/var/lib/postgresql/data