Refresh macOS top-100 audits with shipped status and next-up roadmap

[SergeSerb2]

Summary

Refreshes the two macOS backlog audits after the AppKit renderer rewrite:

• macos-top-100-missing-features.md: adds a Status updates table marking ranks 1–8 as shipped (Add repository onboarding to macOS #424–Add integrated terminal dock #431: repository onboarding, file explorer, command palette, extension marketplace, keybinding editor, worktree control center, usage center, terminal dock) and ranks 15, 61, 62, 68 as partially addressed, with per-row notes on what landed and what remains. Section intros under each ranked table point at the status table so the roadmap itself reads as current.
• macos-ui-ux-top-100.md: adds inline Status notes on items 18, 22, 25, 34, 40 (shipped or substantially shipped via feat(mac): migrate renderer hot path to AppKit #437, fix(mac): AppKit timeline P0s — revision adoption, disclosure height, scroll contract, SwiftUI seam #444, feat(mac): restore transcript + assistant context menus; fix plan rows #448, fix(mac): optimistic send — the message appears when you press Enter #451) and 75, 80 (partial via feat: rework thread archive lifecycle with recovery and auto-delete #436 and the pre-audit notification matrix).
• Both documents gain a Recommended next (2026-08-03) section: the ranked, release-oriented order for what to build and fix next, accounting for the AppKit rewrite. Top feature picks: diagnostics/process/log center (ranks 17/91/92), writable PR review (11), actionable notifications (76), setup-script editor (39), prompt library + mentions (23/24). Top UI picks: finish the P0 state model (1/2/7), live-timeline search (16), diff review completion (56/57/59/12), accessible appearance (93/88/89).

Shipped/partial claims were verified against the merged PR set (#420–#463), the current apps/mac/Sources tree, and git log -S attribution against the audits' snapshot commits; items that predated the audits (queue strip, notification matrix) are marked as such rather than credited to the rewrite.

Area

• apps/mac — native macOS app
• apps/windows — Windows desktop app
• apps/mobile — iPhone companion app
• apps/server — backend server
• Shared packages (packages/contracts, packages/shared, packages/client-runtime, …) or relay (infra/relay)
• Build, CI, or release tooling
• Docs

Release size

• size:XS — tiny internal, documentation, or narrowly scoped fix
• size:S — small user-visible fix or contained improvement
• size:M — normal feature or meaningful behavior change
• size:L — broad feature or substantial cross-package change
• size:XL — release-system, architecture, or ecosystem-scale change

Verification

• pnpm run verify --all passes (check + typecheck + tests; adds lint:mobile and the Swift suite)
• pnpm run test:mac passes (required for apps/mac changes)
• Manually verified (describe below)

Docs-only change; per the repo verification matrix, docs-only diffs require no suite. Reviewed the full rendered diff of both files; pre-commit vp fmt passed. Every shipped/partial marking cites the merged PR and was cross-checked in the current source tree.

Release notes

None