feat(vercel): extract buildVercelDeploymentUrl helper

Introduce buildVercelDeploymentUrl to centralize construction of
Vercel deployment URLs and replace inline URL building in presenters.

- Add buildVercelDeploymentUrl to vercelProjectIntegrationSchema.ts.
  It strips the "dpl_" prefix from integrationDeploymentId and returns
  the canonical Vercel URL.
- Update DeploymentListPresenter and DeploymentPresenter to import
  and use the new helper instead of duplicating string assembly.

This reduces duplicated logic, ensures consistent URL formatting,
and makes future URL-related changes easier to maintain.

Author: 0ski

apps/webapp/app/presenters/v3/DeploymentListPresenter.server.ts

@@ -10,7 +10,10 @@ import { findEnvironmentBySlug } from "~/models/runtimeEnvironment.server";
 import { type User } from "~/models/user.server";
 import { processGitMetadata } from "./BranchesPresenter.server";
 import { BranchTrackingConfigSchema, getTrackedBranchForEnvironment } from "~/v3/github";
-import { VercelProjectIntegrationDataSchema } from "~/v3/vercel/vercelProjectIntegrationSchema";
+import {
+  VercelProjectIntegrationDataSchema,
+  buildVercelDeploymentUrl,
+} from "~/v3/vercel/vercelProjectIntegrationSchema";
 
 const pageSize = 20;
 
@@ -232,8 +235,11 @@ LIMIT ${pageSize} OFFSET ${pageSize * (page - 1)};`;
 
         let vercelDeploymentUrl: string | null = null;
         if (hasVercelIntegration && deployment.integrationDeploymentId && vercelTeamSlug && vercelProjectName) {
-          const vercelId = deployment.integrationDeploymentId.replace(/^dpl_/, "");
-          vercelDeploymentUrl = `https://vercel.com/${vercelTeamSlug}/${vercelProjectName}/${vercelId}`;
+          vercelDeploymentUrl = buildVercelDeploymentUrl(
+            vercelTeamSlug,
+            vercelProjectName,
+            deployment.integrationDeploymentId
+          );
         }
 
         return {

apps/webapp/app/presenters/v3/DeploymentPresenter.server.ts

@@ -12,7 +12,10 @@ import { findEnvironmentBySlug } from "~/models/runtimeEnvironment.server";
 import { type User } from "~/models/user.server";
 import { getUsername } from "~/utils/username";
 import { processGitMetadata } from "./BranchesPresenter.server";
-import { VercelProjectIntegrationDataSchema } from "~/v3/vercel/vercelProjectIntegrationSchema";
+import {
+  VercelProjectIntegrationDataSchema,
+  buildVercelDeploymentUrl,
+} from "~/v3/vercel/vercelProjectIntegrationSchema";
 import { S2 } from "@s2-dev/streamstore";
 import { env } from "~/env.server";
 import { createRedisClient } from "~/redis.server";
@@ -201,8 +204,11 @@ export class DeploymentPresenter {
           });
 
         if (integrationDeployment) {
-          const vercelId = integrationDeployment.integrationDeploymentId.replace(/^dpl_/, "");
-          vercelDeploymentUrl = `https://vercel.com/${parsed.data.vercelTeamSlug}/${parsed.data.vercelProjectName}/${vercelId}`;
+          vercelDeploymentUrl = buildVercelDeploymentUrl(
+            parsed.data.vercelTeamSlug,
+            parsed.data.vercelProjectName,
+            integrationDeployment.integrationDeploymentId
+          );
         }
       }
     }

apps/webapp/app/v3/vercel/vercelProjectIntegrationSchema.ts

@@ -202,6 +202,15 @@ export function shouldSyncEnvVarForAnyEnvironment(
   return false;
 }
 
+export function buildVercelDeploymentUrl(
+  vercelTeamSlug: string | undefined,
+  vercelProjectName: string,
+  integrationDeploymentId: string
+): string {
+  const vercelId = integrationDeploymentId.replace(/^dpl_/, "");
+  return `https://vercel.com/${vercelTeamSlug}/${vercelProjectName}/${vercelId}`;
+}
+
 export function isPullEnvVarsEnabledForEnvironment(
   pullEnvVarsBeforeBuild: EnvSlug[] | null | undefined,
   environmentType: TriggerEnvironmentType