The Home Assistant gateway platform (plugins/platforms/homeassistant) and the
homeassistant toolset (tools/homeassistant_tool.py) now ship as the official
catalog plugin `homeassistant` (NousResearch/hermes-homeassistant), with the
same platform name, toolset/tool names, config keys and env vars.
Migration (hermes_cli/left_core_migration.py, a generic "left core" table
reusing the memory-provider migration's helpers): every profile home that
used Home Assistant (HASS_TOKEN in its .env, platforms.homeassistant enabled
or holding a token, or the homeassistant toolset selected) gets the plugin
installed from the catalog at its reviewed pin by `hermes update`, and lazily
once per process at agent start / gateway start (honours
security.allow_lazy_installs). Every outcome reaches terminal, Desktop and
chat; a gateway-start outcome is handed to that home's first agent.
Core HA special cases become generic PlatformEntry seams the plugin uses:
trusted_inbound (allowlist bypass for event-bus platforms), display_tier
(built-in display defaults) and shared_env_prefixes (profile-clone ownership
rule for env shared with the plugin's tools). Cron delivery uses the existing
cron_deliver_env_var seam; HASS_TOKEN stays stripped from subprocesses via the
installed plugin's manifest secrets.
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