Add ability to retrieve specific comments for reconciliation process

Update routes to use a new method for fetching a single reconciliation comment by ID, replacing the previous approach of fetching all comments and filtering client-side. This change is reflected in both `routes.ts` and `storage.ts`, where a new `getReconciliationCommentById` method is introduced in the `IStorage` interface and implemented in `DatabaseStorage` and `MemStorage`.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 1e4433b5-47ab-464c-b663-fea2e53367dd
Replit-Commit-Checkpoint-Type: full_checkpoint
Replit-Commit-Screenshot-Url: https://storage.googleapis.com/screenshot-production-us-central1/1957c339-2757-4d1f-8e92-e9f71a1ce58e/1e4433b5-47ab-464c-b663-fea2e53367dd/waxFZ5i

.replit

@@ -23,6 +23,10 @@ externalPort = 3000
 localPort = 38451
 externalPort = 3002
 
+[[ports]]
+localPort = 40433
+externalPort = 3003
+
 [[ports]]
 localPort = 41343
 externalPort = 3001