Weft v0.1.2

Fixes found while running the engine in production on golovanov.dev.

Fixed

• Data passed to Alert::send() / Alert::critical() as $context now reaches AlertLoop: it is
  sent as the event's payload, and the trace id travels as the top-level trace_id — previously
  both were dropped on arrival.
• A failed alert delivery is no longer silent: transport errors and non-2xx responses are recorded
  on the request trace as an alert.failed event (metadata only — never the alert body). Delivery
  stays best-effort and non-blocking.

Performance

• Vite asset tags now include preload hints in production: rel="modulepreload" for the entry and
  for every chunk it statically imports (walked recursively through the manifest), and
  rel="preload" for stylesheets. Dynamic imports are deliberately left out.

Added

• Alert::send() accepts a category, the AlertLoop field for your own labels — $type stays the
  AlertLoop event type (incident, business_event, audit).

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Upgrade: none required. golovanov/weft v0.1.2 is API-compatible with v0.1.1 — category is a new
optional argument at the end of Alert::send(). One thing worth checking in your own code: if you
passed a label of your own as $type (the third argument), AlertLoop rejects it — move it to
category:.