[codex] PR_26171_032 idea board accordion table model

[ToolboxAid]

Summary

• Reshapes Idea Board into DB-shaped in-page idea and note table records without adding persistence or SQLite.
• Defaults to all idea rows visible with no notes expanded, then expands/collapses notes from each row's note count or chevron.
• Updates seeds, inline Add/Edit Idea rows, inline Add/Edit Note rows, system-note governance, reports, and targeted Playwright coverage.

Validation

• PASS: node --check toolbox/idea-board/index.js
• PASS: node --check tests/playwright/tools/IdeaBoardTableNotes.spec.mjs
• PASS: node --check tests/playwright/tools/ToolboxRoutePages.spec.mjs
• PASS: Idea Board inline HTML guard
• PASS: npx playwright test tests/playwright/tools/IdeaBoardTableNotes.spec.mjs --project=playwright --workers=1 --reporter=line
• PASS: npx playwright test tests/playwright/tools/ToolboxRoutePages.spec.mjs --project=playwright --workers=1 --reporter=line -g "Idea Board launches"
• PASS: npm run test:workspace-v2
• PASS: git diff --cached --check

Artifact

• tmp/PR_26171_032-idea-board-accordion-table-model_delta.zip (70371 bytes)

Full samples smoke intentionally not run per request.