[mark-takada-airoa]

Summary

Promote host from the JSON robot_config blob to a dedicated, required input on the Create/Edit Robot forms, and rebrand the remaining JSON section as "Advanced Settings."

Changes

• Added a required host text field (validated via z.string().min(1)) above the JSON textarea in both create-robot-form.tsx and edit-robot-form.tsx.
• Renamed the JSON textarea to "Advanced Settings (JSON)" and dropped host from its placeholder; the field now only carries port, cameras, etc.
• Added robot-config-utils.ts with mergeRobotConfigWithHost (merges the dedicated host into the JSON on submit, returns null on invalid JSON) and splitHostFromRobotConfig (extracts host from the stored config when seeding Edit defaults).
• Added i18n keys (en / ja) for robotForm.host, robotForm.hostDescription, robotForm.advancedSettings, robotForm.advancedSettingsDescription, and validation.hostRequired.

Local Verification

Before creating the PR, please verify the following (exclude items already covered by CI/CD):

Create Robot — host required validation

• Submitting with an empty host shows the validation.hostRequired i18n error and blocks submit.

• Submitting with a host value merges it into robot_config.host in the API payload.

• The Advanced Settings placeholder no longer references the host key.

Create Robot — Advanced Settings invalid JSON guard

• Invalid JSON in Advanced Settings surfaces the "Invalid JSON" error and prevents submit.

Edit Robot — host preload

• When the existing robot_config has a host, it appears in the Host field on load.
• The Advanced Settings textarea shows only the non-host keys.

• When no other keys remain, the textarea is empty (no {} placeholder).

Edit Robot — host overwrite on save

• Editing the Host field and saving overwrites robot_config.host with the new value.

• If a user types a host key inside Advanced Settings, the dedicated Host field still wins on collision.

i18n labels (en / ja)

- en: "Host IP", "Advanced Settings (JSON)", and "Host IP is required" render correctly.

• ja: "Host IP", "高度な設定（JSON）", and "Host IP は必須です" render correctly.

[petr-airoa]

LGTM

[okubotakuya-airoa]

Thank you for the PR. LGTM!