Reuse account sections and group securities with per-account holdings.
Use Mantine Select to preserve filters and reset pagination on scope changes.
Document component reuse guardrails and cover routes, grouping and scope switching.
Extract loading/error/loaded state views from the single
AccountOperationsPage.view.tsx into dedicated files under components/.
Document the "one state per view file" rule as a mandatory review
convention in CONVENTIONS.md and UI-PATTERN.md.
Co-Authored-By: opencode <opencode@anthropic.com>
ksv741
