refactor(ssr): full Selmer migration of Transaction Edit; remove the wizard

Squashed Phase-2 SSR work: migrate the Transaction Edit modal's render path
entirely to Selmer templates (zero Hiccup in the render path), rip out the
multi-step wizard abstraction (EditWizard/LinksStep records, MultiStepFormState,
step-params[...] field names, mm/* middleware) in favor of a plain form with
flat derived state, and promote shared UI components to reusable Selmer partials
under resources/templates/components/. Adds the Selmer interop bridge, the
auto-ap.ssr.components.selmer (sc) wrapper library, and the ssr-form-migration
skill capturing the learnings.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

resources/templates/interop-smoke.html

@@ -0,0 +1,7 @@
+<div id="interop-smoke" class="p-2">
+  <h3>{{ title }}</h3>
+  {# a Hiccup-rendered component, passed in pre-rendered and emitted verbatim #}
+  {{ hiccup_frag|safe }}
+  <input x-ref="input" x-model="value.value"
+         @keydown.down.prevent.stop="tippy?.show()" />
+</div>