refactor(ssr): shared component partials own their CSS classes

Bake the Tailwind class base into the shared Selmer component partials so the
partials own their markup and callers pass only data + a small variant
(width / size / color). Applies across all four modals that share them
(bulk-code, invoices, sales-summaries, transaction-edit).

- typeahead / select / location-select / money-input / validated-field /
  button / a-button / a-icon-button: the class base, the validated-field
  has-error toggle, and the button color ladders now live in the .html. The
  sc/*-ctx fns pass width / variant / extra / color plus the non-class attrs
  (computed exactly as before, so every non-class attribute is unchanged).
- bulk-code templates updated to the new partial contracts; account-row pulls
  money-input and a-icon-button in via includes.

Verified: every component's class SET is identical to before across all
variants (14/14 oracle match -- buttons reorder/dedupe classes, CSS is
order-independent); bulk-code full render is DOM-equivalent to the pre-sweep
baseline (class-set + attr-order normalized) for empty / populated / error;
browser QA of bulk-code (full flow) and transaction-edit (open + render) clean,
no JS errors; invoices + sales-summaries compile and render through the same
sc/* fns.

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

resources/templates/components/validated-field.html

@@ -1,9 +1,9 @@
 {# Field wrapper with label + always-present error <p> (the errors- variant of field-).
-   `classes` already folds group / has-error / caller class via hh/add-class; `attrs`
-   carries any pass-through div attributes (the per-row location cell hangs its hx-* /
-   x-dispatch swap wiring here); `body` is the pre-rendered inner control HTML;
-   `errors_str` is the comma-joined string errors (empty when none). #}
-<div class="{{ classes }}"{{ attrs|safe }}>
+   Owns the group / has-error toggle; `has_error` is set when the field has errors,
+   `extra` is the caller's own class. `attrs` carries any pass-through div attributes (the
+   per-row location cell hangs its hx-* / x-dispatch swap wiring here); `body` is the
+   pre-rendered inner control HTML; `errors_str` is the comma-joined string errors. #}
+<div class="group {% if has_error %}has-error {% endif %}{{ extra }}"{{ attrs|safe }}>
   {% if label %}
     <label class="block mb-2 text-sm font-medium text-gray-900 dark:text-white">{{ label }}</label>
   {% endif %}