New guide/low-resource page: what runs well on 2 GB machines, a Raspberry Pi / old laptop Compose walkthrough with tuned caps, the env-var knobs that matter on small hardware, and what to skip. Linked from getting-started, the deployment hardware section, and the sidebar. Translated into all 20 non-English locales via the i18n batch pipeline; parity check and VitePress build pass.
Admin merge: docs-only PR, the path-filtered required integration contexts never report (#420 precedent).
Closes#497
