test(repo): guard allocation drag helper boundaries

scripts/check-architecture-guardrails.mjs

@@ -164,6 +164,40 @@ export const rules = [
     ],
     forbidden: [],
   },
+  {
+    file: "apps/web/src/hooks/timelineOptimisticAllocations.ts",
+    maxLines: 80,
+    required: [
+      {
+        pattern: /\bexport function reconcileOptimisticEntries\b/,
+        message: "timeline optimistic helpers must keep server-reconciliation logic centralized",
+      },
+    ],
+    forbidden: [],
+  },
+  {
+    file: "apps/web/src/hooks/timelineAllocationFinalize.ts",
+    maxLines: 100,
+    required: [
+      {
+        pattern: /\bexport function hasAllocationDateChange\b/,
+        message: "timeline allocation finalize helpers must keep date-change detection centralized",
+      },
+      {
+        pattern: /\bexport function shouldTreatAllocationDragAsClick\b/,
+        message: "timeline allocation finalize helpers must keep click-vs-drag classification centralized",
+      },
+      {
+        pattern: /\bexport function requiresAllocationFragmentExtraction\b/,
+        message: "timeline allocation finalize helpers must keep segment extraction rules centralized",
+      },
+      {
+        pattern: /\bexport function buildAllocationMovedSnapshot\b/,
+        message: "timeline allocation finalize helpers must keep mutation snapshot creation centralized",
+      },
+    ],
+    forbidden: [],
+  },
   {
     file: "apps/web/src/hooks/useTimelineDrag.ts",
     required: [
@@ -183,6 +217,14 @@ export const rules = [
         pattern: /from "\.\/timelineRangeSelection\.js"/,
         message: "timeline drag must keep range preview and finalization delegated to the extracted helper module",
       },
+      {
+        pattern: /from "\.\/timelineOptimisticAllocations\.js"/,
+        message: "timeline drag must keep optimistic allocation reconciliation delegated to the extracted helper module",
+      },
+      {
+        pattern: /from "\.\/timelineAllocationFinalize\.js"/,
+        message: "timeline drag must keep allocation drag completion rules delegated to the extracted helper module",
+      },
     ],
     forbidden: [
       {
@@ -193,6 +235,10 @@ export const rules = [
         pattern: /\bfunction toClientX\b/,
         message: "timeline drag must not re-inline touch coordinate fallback helpers",
       },
+      {
+        pattern: /\bfunction (?:hasAllocationDateChange|shouldTreatAllocationDragAsClick|requiresAllocationFragmentExtraction|buildAllocationMovedSnapshot|reconcileOptimisticEntries)\b/,
+        message: "timeline drag must not re-inline extracted optimistic or allocation finalize helper implementations",
+      },
     ],
   },
   {