feat: opening_balance_date and opening_balance(i18n) (#1377)

* make default of opening_balance_date_label is TODAY

* feat(i18n): add multi-language support for opening balance label

- Use `t("valuations.show.opening_balance")` for all opening balance display (list and detail views)
- Add or update `opening_balance` translation in all major languages under `config/locales/views/valuations/`
- Now "Opening balance" will be localized in all supported languages

* revert -2.years

* Update config/locales/views/valuations/es.yml

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
Signed-off-by: Juan José Mata <jjmata@jjmata.com>

* Update config/locales/views/valuations/pt-BR.yml

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
Signed-off-by: Juan José Mata <jjmata@jjmata.com>

* Fix indentation for opening_balance in ro.yml

Signed-off-by: Juan José Mata <jjmata@jjmata.com>

* Fix indentation for opening_balance in Turkish locale

Signed-off-by: Juan José Mata <jjmata@jjmata.com>

* Update zh-TW.yml

Signed-off-by: Juan José Mata <jjmata@jjmata.com>

---------

Signed-off-by: Juan José Mata <jjmata@jjmata.com>
Co-authored-by: Juan José Mata <jjmata@jjmata.com>
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

app/views/valuations/_header.html.erb

@@ -2,7 +2,8 @@
 
 <%= tag.header class: "mb-4 space-y-1", id: dom_id(entry, :header) do %>
   <span class="text-secondary text-sm">
-    <%= entry.name %>
+    <% valuation = entry.entryable %>
+    <%= valuation.respond_to?(:opening_anchor?) && valuation.opening_anchor? ? t("valuations.show.opening_balance") : entry.name %>
   </span>
 
   <div class="flex items-center gap-4">

app/views/valuations/_valuation.html.erb

@@ -17,10 +17,12 @@
           <%= render DS::FilledIcon.new(icon: icon, size: "md", hex_color: color, rounded: true) %>
 
           <div class="truncate text-primary">
-            <%= link_to entry.name,
-                        entry_path(entry),
-                        data: { turbo_frame: "drawer", turbo_prefetch: false },
-                        class: "hover:underline" %>
+            <%= link_to(
+                  valuation.opening_anchor? ? t("valuations.show.opening_balance") : entry.name,
+                  entry_path(entry),
+                  data: { turbo_frame: "drawer", turbo_prefetch: false },
+                  class: "hover:underline"
+                ) %>
           </div>
         </div>
       </div>