Distribute Environmental Data independently without duplicate shared listing - #4

Delivery

• Environmental Data is publicly distributed from https://github.com/HiQ-AI/environmental-data . Remove its current shared-marketplace entry and editable source copy; preserve the other product entries.
• Add an explicit migration guide: disable the old @hiq-plugins host entry, install the same stable plugin ID from @environmental-data, confirm it, then uninstall only the old host entry. Keep the CLI, credentials and user data.
• Do not add a cross-repo listing back into this marketplace: that would repeat the same product alongside Editor, contrary to the independent user-facing distribution. The independent native marketplace uses supported local sources within its own repo. The existing Cortex path resolver has no per-entry remote-source contract; none is invented.
• Remove obsolete install commands/table rows and retain a documentation-only migration link. Product source is maintained only in the independent repo.

Verification

• Independent repo clean initial publication; native plugin and marketplace strict validation pass.
• Actual Claude Code2.1.317 isolated HOME/config test: install/disable old shared entry, add independent public marketplace, install plugin0.5.3, then uninstall old entry. Final list has only enabled independent entry; actual cache has manifest, main SKILL and three roles. No business CLI provisioning, login or model/data request.
• Shared catalog generation/validation, native strict marketplace validation, relative document links and diff checks pass. Shared index now lists only the remaining products; no fixed-count branding introduced.
• Current CLI0.5.1 release pins and auth contract are unchanged. No Codex compatibility, new database integration, Desktop routing change or release claimed.

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