Replace per-package devDependency catalog pinned to
simatic-ax 2504.0.0-rc.1 with consolidated @ax/sdk 2510.12.0.
Regenerate hwc library templates (v3/v4_0 dropped, v4_1 added),
hardware identifiers, and certificates for the new toolchain;
restructure test IO sources (HwIdentifierList, IoStructures).

Add axopen.dev.tool (axdev) to dotnet tools; pin rollForward
false on all tools.

Persist generated codebase knowledge graph (graphify-out/: report,
community labels, AST cache) for graph-backed queries on this branch.

eAccessPriority never prioritized: all chunks funneled FIFO through
antiThrottlingSemaphore, and Low held a concurrency slot during its
500 ms inter-chunk sleep, throttling the foreground work it was
meant to yield to.

- PriorityRequestDispatcher: per-class FIFO queues, worker count
  capped at ConcurrentRequestMaxCount (clamped <= 4), one slot
  reserved for UserInterface/High, aging against starvation,
  pause/resume during re-login
- inter-chunk delay applied between enqueues, never while a worker
  slot is held
- UserInterfaceLatencyBudget (default 1500 ms): breaches logged and
  surfaced via LastUiBatchDurationMs / UiLatencyBreachCount, no hard
  timeout
- cyclic write fix: dirty-set swapped via Interlocked.Exchange and
  failed primitives re-added, so CyclicToWrite assignments survive
  transient failures; re-login clears pending writes with audit log
- antiThrottlingSemaphore removed; public API, eAccessPriority and
  BatchSettings unchanged

Verification complete on real S7-1500 (334/334). Sync delta specs
to openspec/specs. Add 5.6 headless test covering the rendered-
control refresh pathway (StartPolling → cyclic loop) since the
Blazor sandbox is unrunnable pre-operon.

Replace pinned 2504 package catalog with @ax/sdk 2510.12.0;
regenerate hwc library templates (v4_1), certificates, and ix
output; restructure IO sources for the new hwc layout.

Blazor sandbox: add Inxton.Operon with operon-variables.css,
bump tailwindcss to 4.3.