docs: fix stale references after dockview/migration/quit refactors

[dormouse-bot]

Nightly survey found four spots where docs and a code comment describe behavior the recent refactors (#230, #231, #232, #234) already changed. All fixes are documentation/comment-only — no behavior change — so no regression test applies.

• AGENTS.md — the tiling-engine.md index entry still advertised "Lath-only persistence with a one-way legacy-blob migration reader". Delete old-persistence migration tech-debt #232 deleted that migration reader (and tiling-engine.md's own ## Persistence section was already updated). Dropped the stale clause.
• docs/specs/standalone.md — the Dirty-gated writes section described the structural save trigger as "Structural dockview events" / "with no dockview event". Dockview is gone; the trigger is a Lath store commit (use-session-persistence.ts:133 → lath.store.subscribe(scheduleSessionSave)). Reworded to "Lath store commits" / "no Lath commit". docs: retire dockview references in DESIGN.md after Lath (#228) #231 retired dockview references but missed this occurrence.
• standalone/src/tauri-adapter.ts — requestSessionFlush's comment said it's "Called by the (future) quit orchestrator". The orchestrator (standalone/src/quit.ts) shipped in Standalone quit flow: graceful teardown, durable final save, session-persistence hardening #230 and now calls it. Dropped "(future)".
• docs/specs/dor-cli.md — the dor list --json description listed caller_surface_ref, focused_surface_ref, and the host block, but omitted the top-level workspace_ref / window_ref fields that renderListJson also emits (dor/src/commands/list.ts:164). The command's own help snapshot already documents them; brought the spec prose in line.

pnpm lint:specs passes (23 specs, 24 files).

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[nedtwigg]

I think this might be stale. Try to merge origin/main and see if this PR still makes sense or not.

[dormouse-bot]

Good call to check. origin/main had its history collapsed to a single squashed commit (#239, the dor CLI rework) with no common ancestor to this branch, so a plain merge would have joined unrelated histories. I rebuilt the branch on top of current main instead and re-verified each fix against the live code:

• AGENTS.md — still stale; the legacy-blob migration reader is gone (no references in tiling-engine.md or lib/src/lib/lath/). Applied unchanged.
• standalone.md — still stale; the structural trigger is lath.store.subscribe(scheduleSessionSave) (use-session-persistence.ts:137), not a dockview event. Applied unchanged.
• tauri-adapter.ts — still stale; the quit orchestrator shipped (standalone/src/quit.ts calls requestSessionFlush). Dropped "(future)".
• dor-cli.md — Rework the dor CLI into a cohesive agent surface #239 reworked this section, so the original diff no longer applied cleanly, but the fix is still valid: renderListJson emits top-level workspace_ref / window_ref (list.ts:235-236, documented at list.ts:54) that the prose omits. Re-applied against the new text, in the code's own field ordering.

pnpm lint:specs passes (23 specs, 24 files). Force-pushed the rebuilt branch — still makes sense, just freshened onto current main.