docs: qualify plan-mode timing and workspace no-write claims

ds-review-bot round 3:
- set() after a turn's final step lands in a later turn (selection
  never forces continuation) — the same-turn phrasing overstated the
  guarantee; set() JSDoc + subsystem page (both languages).
- Workspace attach/insert/detach no-op claims now carry the
  filtered-candidate-prune caveat: mutate() durably prunes stale
  candidates even when the requested change is a no-op, a state the
  sessionIds contract explicitly permits; Workspace fence re-synced on
  both page sides; catalogs regenerated.

packages/typert/generator/tests/cordis-catalog-contract.spec.ts

@@ -152,11 +152,11 @@ describe.skip('gen-cordis-catalog collectEvents', { timeout: 60_000 }, () => {
 
   it('accepts linked, foundation, generic-parameter, and explicitly exempt signature types', () => {
     const events = collectEvents(make(
-      '    /**\n     * Carry linked and foundation types.\n     * @param value - the linked value.\n     * @param assembly - assembly result documented outside the subsystems catalog.\n     * @param signal - cancellation.\n     * @mode parallel\n     */\n    \'fix/typed\'<T extends SessionEvent>(value: Readonly<T>, assembly: PromptAssembly, signal: AbortSignal): Promise<T>',
+      '    /**\n     * Carry linked and foundation types.\n     * @param value - the linked value.\n     * @param preset - deployment metadata documented outside the subsystems catalog.\n     * @param signal - cancellation.\n     * @mode parallel\n     */\n    \'fix/typed\'<T extends SessionEvent>(value: Readonly<T>, preset: PresetSpec, signal: AbortSignal): Promise<T>',
     ))
     expect(events).toHaveLength(1)
     expect(renderEvents(events)).toContain('Types: [SessionEvent](../subsystems/core.md)')
-    expect(renderEvents(events)).not.toContain('[PromptAssembly]')
+    expect(renderEvents(events)).not.toContain('[PresetSpec]')
   })
 
   it('aggregates every unclassified signature type with its source and remediation', () => {