feat(timeline): add pulse animation for in-flight drag mutations

Allocation bars that have active optimistic overrides (post-drag,
awaiting server confirmation) now pulse subtly via animate-pulse.
The pending set is derived from the existing optimisticAllocations
map keys, requiring no additional state.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

packages/api/src/router/resource-read-shared.ts

@@ -1,7 +1,14 @@
 import { FieldType, ResourceType } from "@capakraken/shared";
 import { TRPCError } from "@trpc/server";
 import { z } from "zod";
-import { ROLE_BRIEF_SELECT } from "../db/selects.js";
+import {
+  ROLE_BRIEF_SELECT,
+  RESOURCE_DIRECTORY_SELECT,
+  RESOURCE_IDENTIFIER_DETAIL_SELECT,
+  RESOURCE_IDENTIFIER_SELECT,
+  RESOURCE_SUMMARY_DETAIL_SELECT,
+  RESOURCE_SUMMARY_SELECT,
+} from "../db/selects.js";
 import { buildDynamicFieldWhereClauses } from "./custom-field-filters.js";
 import {
   anonymizeResources,
@@ -15,13 +22,6 @@ import {
   canReadAllResources,
   type ResourceReadContext,
 } from "../lib/resource-access.js";
-import {
-  RESOURCE_DIRECTORY_SELECT,
-  RESOURCE_IDENTIFIER_DETAIL_SELECT,
-  RESOURCE_IDENTIFIER_SELECT,
-  RESOURCE_SUMMARY_DETAIL_SELECT,
-  RESOURCE_SUMMARY_SELECT,
-} from "./resource-read-models.js";
 
 function parseResourceCursor(cursor: string | undefined): { displayName: string; id: string } | null {
   if (!cursor) return null;