feat: update activity feed to include various event types and improve messaging

backend/app/api/approvals.py

@@ -30,8 +30,8 @@ from app.schemas.approvals import ApprovalCreate, ApprovalRead, ApprovalStatus,
 from app.schemas.pagination import DefaultLimitOffsetPage
 from app.services.activity_log import record_activity
 from app.services.approval_task_links import (
-    lock_tasks_for_approval,
     load_task_ids_by_approval,
+    lock_tasks_for_approval,
     normalize_task_ids,
     pending_approval_conflicts_by_task,
     replace_approval_task_links,
@@ -408,7 +408,9 @@ async def update_approval(
     if "status" in updates:
         target_status = updates["status"]
         if target_status == "pending" and prior_status != "pending":
-            task_ids_by_approval = await load_task_ids_by_approval(session, approval_ids=[approval.id])
+            task_ids_by_approval = await load_task_ids_by_approval(
+                session, approval_ids=[approval.id]
+            )
             approval_task_ids = task_ids_by_approval.get(approval.id)
             if not approval_task_ids and approval.task_id is not None:
                 approval_task_ids = [approval.task_id]

backend/app/api/tasks.py

@@ -35,6 +35,7 @@ from app.models.boards import Board
 from app.models.task_dependencies import TaskDependency
 from app.models.task_fingerprints import TaskFingerprint
 from app.models.tasks import Task
+from app.schemas.activity_events import ActivityEventRead
 from app.schemas.common import OkResponse
 from app.schemas.errors import BlockedTaskError
 from app.schemas.pagination import DefaultLimitOffsetPage
@@ -648,7 +649,10 @@ def _task_event_payload(
     deps_map: dict[UUID, list[UUID]],
     dep_status: dict[UUID, str],
 ) -> dict[str, object]:
-    payload: dict[str, object] = {"type": event.event_type}
+    payload: dict[str, object] = {
+        "type": event.event_type,
+        "activity": ActivityEventRead.model_validate(event).model_dump(mode="json"),
+    }
     if event.event_type == "task.comment":
         payload["comment"] = _serialize_comment(event)
         return payload

backend/app/services/approval_task_links.py

@@ -196,10 +196,10 @@ async def pending_approval_conflicts_by_task(
         legacy_statement = legacy_statement.where(col(Approval.id) != exclude_approval_id)
     legacy_rows = list(await session.exec(legacy_statement))
 
-    for task_id, approval_id, _created_at in legacy_rows:
-        if task_id is None:
+    for legacy_task_id, approval_id, _created_at in legacy_rows:
+        if legacy_task_id is None:
             continue
-        conflicts.setdefault(task_id, approval_id)
+        conflicts.setdefault(legacy_task_id, approval_id)
 
     return conflicts