feat: task trash, triage trash and retention settings for every area; admin can forbid keeping things for good

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

frontend/src/features/triage/__tests__/TriageDeck.lists.test.tsx

@@ -71,6 +71,8 @@ describe('TriageDeck single-list shortcut', () => {
         onDeckChange={onDeckChange}
         onOpenDocument={vi.fn()}
         onFocusCapture={vi.fn()}
+        discardedCount={0}
+        onOpenTrash={vi.fn()}
       />
     );
 
@@ -100,6 +102,8 @@ describe('TriageDeck single-list shortcut', () => {
         onDeckChange={onDeckChange}
         onOpenDocument={vi.fn()}
         onFocusCapture={vi.fn()}
+        discardedCount={0}
+        onOpenTrash={vi.fn()}
       />
     );
 
@@ -123,6 +127,8 @@ describe('TriageDeck single-list shortcut', () => {
         onDeckChange={onDeckChange}
         onOpenDocument={vi.fn()}
         onFocusCapture={vi.fn()}
+        discardedCount={0}
+        onOpenTrash={vi.fn()}
       />
     );
 
@@ -149,6 +155,8 @@ describe('TriageDeck single-list shortcut', () => {
         onDeckChange={onDeckChange}
         onOpenDocument={vi.fn()}
         onFocusCapture={vi.fn()}
+        discardedCount={0}
+        onOpenTrash={vi.fn()}
       />
     );
 
@@ -171,6 +179,8 @@ describe('TriageDeck single-list shortcut', () => {
         onDeckChange={onDeckChange}
         onOpenDocument={vi.fn()}
         onFocusCapture={vi.fn()}
+        discardedCount={0}
+        onOpenTrash={vi.fn()}
       />
     );