Release erli18n-v0.8.0

Added

• Optional erlydtl template bridge (erli18n_erlydtl). A new optional
  module lets an erlydtl template translate
  its {% trans %} / {% blocktrans %} tags through erli18n — full gettext
  (contexts, CLDR plurals, hot-reloadable persistent_term catalogs, per-request
  locale), with erlydtl keeping ownership of {{ var }} interpolation and
  auto-escaping.

  erli18n_erlydtl:translation_fun/1 returns a render-time translation_fun (a
  fun/2) bound to a gettext domain; pass it in erlydtl's render/2 options. The
  tag mapping — performed by the pure, exported decode/2 — is {% trans %} →
  gettext, context → pgettext, a counted {% blocktrans %} → ngettext,
  and context + count → npgettext. The locale comes from an explicit
  binary/string locale render option, or falls back to the per-process locale
  (erli18n:which_locale/0) that erli18n_cowboy / erli18n_elli already set —
  so it composes with the request middleware with no extra wiring.

  Unlike the Cowboy/Elli adapters, the bridge is an inverted integration: it
  references zero erlydtl functions (erlydtl calls into the fun), so it is
  not an optional_applications entry and carries no
  xref/dialyzer/eqwalizer suppressions — full static analysis stays live over
  every line. The fun is total over term(): a non-integer count (a missing
  template variable) and a non-chardata runtime _(Var) value are normalized
  rather than crashing the render. On a miss it echoes the msgid — matching
  erlydtl's own source fallback for {% trans %}, and giving a count-appropriate
  two-form fallback for a counted {% blocktrans %} (a deliberate improvement on
  erlydtl's singular-only native fallback). erlydtl is a test-profile
  dependency only; the published package still requires only kernel + stdlib.

  A runnable example lives in examples/erli18n_erlydtl_demo.