Fix structured attachment rendering (#69)

* review: harden readonly git checks and lint verification

* test: satisfy readonly reviewer sandbox typing

* test: fix readonly reviewer sandbox assertions

* test: remove impossible readonly sandbox guards

* test: relax readonly sandbox assertions

* test: cast readonly sandbox expectation shape

* test: cast readonly sandbox expectation through unknown

* Phase 0 — STEP_DONE/TASK_DONE split + owner-follow-up integration smoke

* Add STEP_DONE guards, verdict storage, and stale delivery suppression

* style: format paired stepdone telemetry files

* Route STEP_DONE through reviewer

* Add structured Discord attachments

* style: format structured attachment test

* Fix room thread bot output parity

* Remove duplicate work item attachment migration from owner branch

* Remove legacy dashboard rooms renderer

* Extract dashboard parsed body renderer

* Extract dashboard redaction helpers

* Extract dashboard RoomCardV2 component

* Include RoomCardV2 test in vitest suite

* Extract dashboard RoomBoardV2 component

* Extract dashboard EmptyState component

* Extract dashboard InboxPanel component

* Split dashboard InboxPanel card renderer

* Extract dashboard TaskPanel component

* Extract dashboard UsagePanel component

* Fix dashboard room thread chunk rendering

* Extract dashboard ServicePanel component

* Render dashboard live progress markdown

* Extract dashboard SettingsPanel component

* Fix structured attachment rendering

apps/dashboard/src/api.ts

@@ -107,6 +107,11 @@ export interface DashboardRoomActivity {
     sender: string;
     senderName: string;
     content: string;
+    attachments?: Array<{
+      path: string;
+      name?: string;
+      mime?: string;
+    }>;
     timestamp: string;
     isFromMe: boolean;
     isBotMessage: boolean;
@@ -141,6 +146,11 @@ export interface DashboardRoomActivity {
       verdict: string | null;
       createdAt: string;
       outputText: string;
+      attachments?: Array<{
+        path: string;
+        name?: string;
+        mime?: string;
+      }>;
     }>;
   } | null;
 }