local-embed 0.3.1

Documentation correction; no code changes.

The READMEs described the config-path precedence as $LOCAL_EMBED_FILE > slife project root (dev) > ~/.local-embed/local_embed.yaml. The dev-mode step was removed in 0.3.0 — resolve_config_path() never consults the working directory — so the READMEs now state the two-step precedence, and note that a host wanting the config beside its own must export $LOCAL_EMBED_FILE. Slife seeds ~/.local-embed/local_embed.yaml and relies on the default, so nothing changes for it.