Advanced parameter sections and validation-gated run workflow

[quinCode]

Advanced parameter sections and validation-gated run workflow

Parent

PRD #14: Run workspace usability rewrite

What to build

Make the run setup area usable for real configuration work. Core choices stay visible at all times, while schema-driven advanced fields are grouped and collapsed by default. The collapsed summary should show 已修改 N 项.

The run workflow should make readiness explicit: 开始运行 stays visible but disabled until the current draft validates successfully, and any draft change invalidates validation.

Acceptance criteria

• Core run choices remain visible while advanced schema fields are collapsed by default.
• Advanced fields are grouped by purpose where metadata allows, with a sensible fallback group.
• Collapsed advanced sections display 已修改 N 项.
• 重置高级参数 updates the modified count and invalidates validation when relevant.
• 验证配置 shows immediate loading feedback and then durable validation status.
• 开始运行 is always visible but disabled until the current draft has a successful fresh validation.
• Changing any core choice or advanced override after validation disables 开始运行 again.
• Validation errors appear inline in the run setup/status area and may also trigger toast feedback.
• Frontend tests cover fresh validation, stale validation after edits, disabled start, enabled start, and advanced modified counts.

Blocked by

• Issue 0015: RunDraft state model with safe persistence
• Issue 0016: Catalog option adapters and searchable configuration comboboxes

[quinCode]

Dependency note: blocked by #17 and #20.