feature: Tasks tab added for lab organizations. tasks now can be assigned and their status can be updated by the assignee.

backend/prisma/migrations/20260628180000_lab_task_priority_and_tasks_permissions/migration.sql

@@ -0,0 +1,22 @@
+-- Add task priority, timestamps, and Tasks tab permissions
+
+ALTER TABLE "lab_case_tasks" ADD COLUMN "priority" INTEGER NOT NULL DEFAULT 3;
+ALTER TABLE "lab_case_tasks" ADD COLUMN "createdAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP;
+ALTER TABLE "lab_case_tasks" ADD COLUMN "updatedAt" TIMESTAMP(3) NOT NULL DEFAULT CURRENT_TIMESTAMP;
+
+CREATE INDEX "lab_case_tasks_assigneeUserId_priority_createdAt_idx"
+  ON "lab_case_tasks"("assigneeUserId", "priority", "createdAt");
+
+INSERT INTO "features" ("id", "name", "description", "organizationTypeId")
+VALUES (gen_random_uuid(), 'Tasks', 'Lab task inbox', NULL)
+ON CONFLICT ("name") DO NOTHING;
+
+INSERT INTO "permissions" ("id", "name", "description", "featureId")
+SELECT gen_random_uuid(), v.name, NULL, f.id
+FROM (VALUES
+  ('TAB_TASKS_READ'),
+  ('TAB_TASKS_EDIT')
+) AS v(name)
+CROSS JOIN "features" f
+WHERE f.name = 'Tasks'
+ON CONFLICT ("name") DO NOTHING;

backend/prisma/migrations/20260628190000_lab_task_assigned_at/migration.sql

@@ -0,0 +1,6 @@
+-- Track when a task was assigned (for sorting and display)
+
+ALTER TABLE "lab_case_tasks" ADD COLUMN "assignedAt" TIMESTAMP(3);
+
+CREATE INDEX "lab_case_tasks_assignedAt_labCaseId_priority_idx"
+  ON "lab_case_tasks"("assignedAt" DESC, "labCaseId" ASC, "priority" DESC);