Merge branch 'cw/review-tab-performance' into cw-merge-1772826318787

apps/server/execution/orchestrator.ts

@@ -23,6 +23,7 @@ import type { ConflictResolutionService } from '../coordination/conflict-resolut
 import { phaseBranchName, taskBranchName } from '../git/branch-naming.js';
 import { ensureProjectClone } from '../git/project-clones.js';
 import { createModuleLogger } from '../logger/index.js';
+import { phaseMetaCache, fileDiffCache } from '../review/diff-cache.js';
 
 const log = createModuleLogger('execution-orchestrator');
 
@@ -253,6 +254,10 @@ export class ExecutionOrchestrator {
       log.info({ taskId, taskBranch, phaseBranch, project: project.name }, 'task branch merged into phase branch');
     }
 
+    // Invalidate diff cache — phase branch HEAD has advanced after merges
+    phaseMetaCache.invalidateByPrefix(`${phaseId}:`);
+    fileDiffCache.invalidateByPrefix(`${phaseId}:`);
+
     // Emit task:merged event
     const mergedEvent: TaskMergedEvent = {
       type: 'task:merged',