Add deploymentEnabled reproduction fixture

apps/fixtures/deployment-enabled-repro/.gitignore

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+node_modules
+.vercel
+.eve
+.env*.local

apps/fixtures/deployment-enabled-repro/README.md

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+# `git.deploymentEnabled` repro
+
+This fixture isolates [#438](https://github.com/vercel/eve/issues/438): creating an eve project with the eve CLI does not forward the repository's root `vercel.ts` `git.deploymentEnabled` configuration to the Vercel project.
+
+The three apps share this repository and the same root [`vercel.ts`](./vercel.ts). `web` and `docs` are identical minimal Next.js controls. The only meaningful difference is how their Vercel projects are created:
+
+- `apps/web` and `apps/docs`: `vercel link`
+- `apps/agent`: `eve link`
+
+## Reproduce
+
+These steps require a live Vercel team and GitHub repository. The resulting preview-deployment behavior cannot be observed purely locally.
+
+1. Push this fixture to a GitHub repository whose default branch is `master`.
+2. From `apps/web` and `apps/docs`, run `vercel link` and create one Vercel project for each app. This is the control path: the Vercel CLI reads the root `vercel.ts` configuration when it creates the projects.
+3. From `apps/agent`, run `eve link` and create its Vercel project. This is the variable path under test.
+4. Create a branch such as `feature/repro`, change a file in each app, commit, and push the branch.
+
+## Expected and actual behavior
+
+The root configuration enables deployments only for `master`, so all three projects should skip preview deployments for `feature/repro`.
+
+Before the fix proposed in [#447](https://github.com/vercel/eve/pull/447), the controls behave as expected: `web` and `docs` are skipped. The agent project is created without the configuration, so it creates a deployment that later cancels or skips instead of being suppressed at the Git-integration decision.
+
+To prove that project creation is the cause, delete and recreate the agent project with `vercel link` rather than `eve link`, then repeat step 4. The agent project is suppressed like the controls. That is the behavior #447 changes.

apps/fixtures/deployment-enabled-repro/apps/agent/agent/agent.ts

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+import { defineAgent } from "eve";
+
+export default defineAgent({
+  model: "anthropic/claude-sonnet-5",
+});

apps/fixtures/deployment-enabled-repro/apps/agent/agent/channels/eve.ts

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+import { eveChannel } from "eve/channels/eve";
+import { localDev, placeholderAuth, vercelOidc } from "eve/channels/auth";
+
+export default eveChannel({
+  auth: [
+    // Lets the eve TUI and your Vercel deployments reach the deployed agent.
+    vercelOidc(),
+    // Open on localhost for `eve dev` and the REPL; ignored in production.
+    localDev(),
+    // This placeholder will not allow browser requests in production.
+    // Replace it with your app's auth provider, like Auth.js or Clerk,
+    // or use none() for a public demo.
+    placeholderAuth(),
+  ],
+});

apps/fixtures/deployment-enabled-repro/apps/agent/agent/instructions.md

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+# Identity
+
+You are a helpful assistant.

apps/fixtures/deployment-enabled-repro/apps/agent/package.json

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+{
+  "name": "deployment-enabled-repro-agent",
+  "private": true,
+  "type": "module",
+  "dependencies": {
+    "@vercel/connect": "0.4.2",
+    "ai": "^7.0.34",
+    "eve": "^0.27.6",
+    "zod": "4.4.3"
+  }
+}

apps/fixtures/deployment-enabled-repro/apps/docs/app/page.tsx

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+export default function Page() {
+  return <main>docs control</main>;
+}

apps/fixtures/deployment-enabled-repro/apps/docs/next-env.d.ts

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+/// <reference types="next" />
+/// <reference types="next/image-types/global" />
+import "./.next/types/routes.d.ts";
+import "./.next/types/root-params.d.ts";
+
+// NOTE: This file should not be edited
+// see https://nextjs.org/docs/app/api-reference/config/typescript for more information.

apps/fixtures/deployment-enabled-repro/apps/docs/package.json

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+{
+  "name": "deployment-enabled-repro-docs",
+  "private": true,
+  "scripts": {
+    "build": "next build"
+  },
+  "dependencies": {
+    "next": "16.3.0-preview.6",
+    "react": "19.2.6",
+    "react-dom": "19.2.6"
+  },
+  "devDependencies": {
+    "@types/node": "25.9.1",
+    "@types/react": "19.2.15",
+    "@types/react-dom": "19.2.3",
+    "typescript": "6.0.3"
+  }
+}

apps/fixtures/deployment-enabled-repro/apps/docs/tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "ES2017",
+    "lib": ["dom", "dom.iterable", "esnext"],
+    "allowJs": true,
+    "skipLibCheck": true,
+    "strict": false,
+    "noEmit": true,
+    "incremental": true,
+    "module": "esnext",
+    "esModuleInterop": true,
+    "moduleResolution": "bundler",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "jsx": "react-jsx",
+    "plugins": [
+      {
+        "name": "next"
+      }
+    ]
+  },
+  "include": [
+    "next-env.d.ts",
+    ".next/types/**/*.ts",
+    ".next/dev/types/**/*.ts",
+    "**/*.mts",
+    "**/*.ts",
+    "**/*.tsx"
+  ],
+  "exclude": ["node_modules"]
+}

apps/fixtures/deployment-enabled-repro/apps/web/app/page.tsx

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+export default function Page() {
+  return <main>web control</main>;
+}

apps/fixtures/deployment-enabled-repro/apps/web/next-env.d.ts

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+/// <reference types="next" />
+/// <reference types="next/image-types/global" />
+import "./.next/types/routes.d.ts";
+import "./.next/types/root-params.d.ts";
+
+// NOTE: This file should not be edited
+// see https://nextjs.org/docs/app/api-reference/config/typescript for more information.

apps/fixtures/deployment-enabled-repro/apps/web/package.json

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+{
+  "name": "deployment-enabled-repro-web",
+  "private": true,
+  "scripts": {
+    "build": "next build"
+  },
+  "dependencies": {
+    "next": "16.3.0-preview.6",
+    "react": "19.2.6",
+    "react-dom": "19.2.6"
+  },
+  "devDependencies": {
+    "@types/node": "25.9.1",
+    "@types/react": "19.2.15",
+    "@types/react-dom": "19.2.3",
+    "typescript": "6.0.3"
+  }
+}

apps/fixtures/deployment-enabled-repro/apps/web/tsconfig.json

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+{
+  "compilerOptions": {
+    "target": "ES2017",
+    "lib": ["dom", "dom.iterable", "esnext"],
+    "allowJs": true,
+    "skipLibCheck": true,
+    "strict": false,
+    "noEmit": true,
+    "incremental": true,
+    "module": "esnext",
+    "esModuleInterop": true,
+    "moduleResolution": "bundler",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "jsx": "react-jsx",
+    "plugins": [
+      {
+        "name": "next"
+      }
+    ]
+  },
+  "include": [
+    "next-env.d.ts",
+    ".next/types/**/*.ts",
+    ".next/dev/types/**/*.ts",
+    "**/*.mts",
+    "**/*.ts",
+    "**/*.tsx"
+  ],
+  "exclude": ["node_modules"]
+}

apps/fixtures/deployment-enabled-repro/package.json

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+{
+  "name": "deployment-enabled-repro",
+  "private": true,
+  "workspaces": [
+    "apps/*"
+  ],
+  "engines": {
+    "node": "24.x"
+  }
+}