feat(behandelportal): WP-64 werkvoorraad (queue) screen

New GET /werkvoorraad endpoint lists aanvragen still open (Ingediend/InBehandeling),
gated by the medewerker capability (CanBeoordelen) rather than the admin role — reuses
the existing ApplicationSummaryDto, no new DTO. GET /me now surfaces aanvraag:beoordelen
for a behandelaar so the FE can gate with the same AccessStore/capabilityGuard idiom
every other page uses.

FE: a behandeling domain type deliberately narrower than ssp's full AanvraagStatus
union (only the two open tags — illegal states unrepresentable), composed into a
werkvoorraad-list organism from existing shared/ui molecules. Replaces WP-61's
scaffold placeholder as the app's real landing page.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

apps/behandelportal/src/locale/messages.en.xlf

@@ -2904,21 +2904,61 @@
           <context context-type="linenumber">95</context>
         </context-group>
       </trans-unit>
-<trans-unit id="behandeling.landing.heading" datatype="html">
-        <source>Behandeling</source>
-        <target datatype="html">Case handling</target>
-        <context-group purpose="location">
-          <context context-type="sourcefile">src/app/behandeling/ui/behandeling.page.ts</context>
-          <context context-type="linenumber">18</context>
-        </context-group>
+<trans-unit id="werkvoorraad.type.registratie" datatype="html">
+        <source>Inschrijving</source>
+        <target datatype="html">Registration</target>
       </trans-unit>
-      <trans-unit id="behandeling.landing.intro" datatype="html">
-        <source>Hier komt de eerste behandeling-functionaliteit.</source>
-        <target datatype="html">The first case-handling functionality will land here.</target>
-        <context-group purpose="location">
-          <context context-type="sourcefile">src/app/behandeling/ui/behandeling.page.ts</context>
-          <context context-type="linenumber">19</context>
-        </context-group>
+      <trans-unit id="werkvoorraad.type.herregistratie" datatype="html">
+        <source>Herregistratie</source>
+        <target datatype="html">Re-registration</target>
+      </trans-unit>
+      <trans-unit id="werkvoorraad.type.intake" datatype="html">
+        <source>Herregistratie-intake</source>
+        <target datatype="html">Re-registration intake</target>
+      </trans-unit>
+      <trans-unit id="werkvoorraad.status.ingediend" datatype="html">
+        <source>Ingediend</source>
+        <target datatype="html">Submitted</target>
+      </trans-unit>
+      <trans-unit id="werkvoorraad.status.inBehandelingHandmatig" datatype="html">
+        <source>In behandeling (handmatig)</source>
+        <target datatype="html">In progress (manual)</target>
+      </trans-unit>
+      <trans-unit id="werkvoorraad.status.inBehandeling" datatype="html">
+        <source>In behandeling</source>
+        <target datatype="html">In progress</target>
+      </trans-unit>
+      <trans-unit id="werkvoorraad.row.ingediend" datatype="html">
+        <source>ingediend op <x id="datum" equiv-text="formatDatumNl(item.submittedAt)"/></source>
+        <target datatype="html">submitted on <x id="datum" equiv-text="formatDatumNl(item.submittedAt)"/></target>
+      </trans-unit>
+      <trans-unit id="werkvoorraad.row.bsn" datatype="html">
+        <source>BSN <x id="bsn" equiv-text="item.owner"/></source>
+        <target datatype="html">BSN <x id="bsn" equiv-text="item.owner"/></target>
+      </trans-unit>
+      <trans-unit id="werkvoorraad.heading" datatype="html">
+        <source>Werkvoorraad</source>
+        <target datatype="html">Queue</target>
+      </trans-unit>
+      <trans-unit id="werkvoorraad.intro" datatype="html">
+        <source>Aanvragen die op beoordeling wachten.</source>
+        <target datatype="html">Applications waiting for review.</target>
+      </trans-unit>
+      <trans-unit id="werkvoorraad.denied" datatype="html">
+        <source>U hebt geen rechten om de werkvoorraad te bekijken.</source>
+        <target datatype="html">You do not have permission to view the queue.</target>
+      </trans-unit>
+      <trans-unit id="werkvoorraad.failed" datatype="html">
+        <source>De werkvoorraad kon niet worden geladen.</source>
+        <target datatype="html">The queue could not be loaded.</target>
+      </trans-unit>
+      <trans-unit id="werkvoorraad.empty" datatype="html">
+        <source>Er staan geen aanvragen open.</source>
+        <target datatype="html">There are no open applications.</target>
+      </trans-unit>
+      <trans-unit id="werkvoorraad.retry" datatype="html">
+        <source>Opnieuw proberen</source>
+        <target datatype="html">Try again</target>
       </trans-unit>
       <trans-unit id="beheer.noTables" datatype="html">
         <source>Er is geen stamdata om te beheren.</source>