[Design] Redesign decisions and resolved comments

Start with /design-audit#surfaces and inspect the decisions rail, questionnaire cards, comment thread cards, SidecarCard, and provenance in packages/editor. Review the listed verification commands and inventory every required layout and relationship state; done means annotated before/after evidence, shared anatomy decisions, browser evidence, deferred states, and Maggie's approval without changing record authority or workflows.

Base branch: main
Branch: maggie/redesign-decisions-and-comments
Depends on: None

Goal

Give decisions and resolved comments a coherent, high-quality sidecar design while preserving the distinct durable record states.

Context From Planning

• The current decisions and resolved-comment specimens in /design-audit#surfaces both need a proper design pass.
• They share sidecar-card foundations and provenance, but questions, accepted comments, resolved history, deliberately empty links, and orphaned links must remain semantically distinct.
• This is a human-reviewed design task rather than a mechanical restyle.

Current Behavior

Questionnaires and comment threads share SidecarCard, but information hierarchy, provenance, actions, settled treatment, history disclosure, and empty/orphaned records remain visually weak. Existing behavior carefully distinguishes pending, linked, deliberately empty, and orphaned relationships.

Desired Behavior

Design a small sidecar record system that makes open work, settled decisions, provenance, related prose, and exceptional relationship states immediately legible without fragmenting the product into unrelated card styles.

Acceptance Criteria

• The design audit covers outstanding questionnaire, answered questionnaire, open comment, accepted comment, resolved history, deliberately empty relation, orphaned relation, focused/related-prose, disabled, and narrow layouts.
• Questions and comments share card anatomy/tokens where their semantics match and remain distinct where actions differ.
• Provenance, primary content, contextual quote, related-prose state, and actions have a clear reading order.
• Pending, linked, deliberately empty, and orphaned states remain visibly and programmatically distinct.
• Existing accept/dismiss confirmation, frozen accepted threads, resolved-history disclosure, focus handoff, related-prose highlight/pin, and record authority remain unchanged.
• Maggie approves the audit specimens before production migration.

Verification Commands

• bun run types
• bun run ci
• bun test packages/editor
• bun run e2e

Primary Surfaces

• /design-audit#surfaces
• Decisions rail and questionnaire cards in packages/editor
• Comment thread cards, SidecarCard, and provenance

Expected PR Checks

• Repo required checks

Report Requirements

• State inventory and annotated before/after screenshots
• Shared anatomy/token decisions
• Browser evidence for focus, disclosure, and related-prose behavior
• Any deliberately deferred states

Implementation Notes

• Records own decisions; rendered document projections are not authority.
• Preserve the four relationship states: pending, linked, deliberately empty, and orphaned.
• Empty means intentional absence; orphaned means the former target cannot be recovered safely.
• Keep one shared foundation without forcing question-owned controls into comment-owned action slots.

Stop Conditions

• A visual treatment obscures the difference between empty and orphaned relationships.
• The design requires changing record authority, anchoring, or questionnaire/comment workflows.