chore(e2e): pin anthropic for api e2e, servers, and ci

.github/workflows/api-e2e.yml

@@ -23,6 +23,7 @@ env:
   PGLITE: true
   DATABASE_URL: postgresql://localhost/test
   JWT_SECRET: e2e-jwt-secret-min-32-chars-for-tests
+  AI_PROVIDER: anthropic
   ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
 
 jobs:

.github/workflows/web-e2e.yml

@@ -27,6 +27,7 @@ env:
   DATABASE_URL: postgresql://localhost/test
   JWT_SECRET: e2e-jwt-secret-min-32-chars-for-tests
   NEXT_PUBLIC_API_URL: http://localhost:3001
+  AI_PROVIDER: anthropic
   ANTHROPIC_API_KEY: ${{ secrets.ANTHROPIC_API_KEY }}
 
 jobs:

apps/api/.env.test.example

@@ -28,6 +28,7 @@ DATABASE_URL=postgresql://localhost/test
 # AI
 # -----------------------------------------------------------------------------
 ANTHROPIC_API_KEY=sk-ant-xxx
+AI_PROVIDER=anthropic
 # OPEN_ROUTER_API_KEY=
 # OLLAMA_BASE_URL=http://localhost:11434
 # AI_DEFAULT_MODEL=claude-sonnet-4-20250514

apps/api/scripts/run-e2e-local.mjs

@@ -2,6 +2,7 @@
 /**
  * E2E local: spawn Fastify API, poll until healthy, run Playwright, cleanup on exit.
  * No wait-on. Uses ALLOW_TEST, PGLITE, NODE_ENV=test.
+ * Forces AI_PROVIDER=anthropic and strips Open Router/Ollama/AI_DEFAULT_MODEL (parity with Vitest + web E2E).
  */
 import { spawn, spawnSync } from 'node:child_process'
 import { existsSync, readFileSync } from 'node:fs'
@@ -74,7 +75,11 @@ async function main() {
     PGLITE: 'true',
     NODE_ENV: 'test',
     JWT_SECRET: jwtSecret,
+    AI_PROVIDER: 'anthropic',
   }
+  delete env.OPEN_ROUTER_API_KEY
+  delete env.OLLAMA_BASE_URL
+  delete env.AI_DEFAULT_MODEL
 
   const fastify = spawn(process.execPath, ['--import', 'tsx', 'server.ts'], {
     cwd: fastifyDir,

apps/docu/content/docs/testing/frontend-testing.mdx

@@ -58,7 +58,7 @@ test.describe('Magic Link Auth E2E', () => {
 
 - **workers: 1** — Required for PGlite (Fastify test DB) to avoid concurrent writer issues
 - **Test order** — Auth project first (magic-link-auth: error tests, login/logout; ends with logout). Chromium: unauth badge tests first, then first authed test triggers fixture and confirms session, then remaining authed tests run consecutively
-- **Chat E2E** — Requires `OPEN_ROUTER_API_KEY`; see [E2E Testing](/docs/testing/e2e-testing) for env vars. If UNAUTHORIZED, session/Bearer propagation to Fastify `/ai/chat` needs debugging.
+- **Chat E2E** — Requires `ANTHROPIC_API_KEY` (Anthropic Sonnet); see [E2E Testing](/docs/testing/e2e-testing) for env vars. If UNAUTHORIZED, session/Bearer propagation to Fastify `/ai/chat` needs debugging.
 - **Session model** — One login per worker via `authenticatedStorageState` fixture; cookies/storage saved to `test-results/.auth/user.json` (gitignored); each authed test gets a new context created with that storageState. No per-test login
 - **Login/logout tests** — Import from `@playwright/test`, use `page`; need fresh contexts to verify the flow
 - **Authed feature tests** — Import from `e2e/fixtures`, use `authenticatedPage`; no `loginAsTestUser` in test body. Each test gets a fresh context with saved storageState; navigate to target route (e.g. `goto('/')`) before asserting

apps/web/e2e/chat-assistant.spec.ts

@@ -32,7 +32,7 @@ test.describe('Chat Assistant', () => {
       if (
         /insufficient_quota|insufficient_credits|quota_exceeded|credits_exceeded/i.test(errorText)
       ) {
-        test.skip(true, 'OpenRouter 402 insufficient credits')
+        test.skip(true, 'AI provider quota/credits (402)')
         return
       }
       if (/invalid x-api-key|authentication_error|invalid.*api.*key|401/i.test(errorText)) {

apps/web/scripts/start-e2e-servers.mjs

@@ -4,6 +4,7 @@
  * Run in one terminal, then in another: pnpm test:e2e
  *
  * Use when Playwright's webServer spawns processes that get OOM killed (exit 137) on constrained VMs.
+ * Pins AI to Anthropic for API (same as test:e2e:local).
  */
 import { spawn } from 'node:child_process'
 import { dirname } from 'node:path'
@@ -18,7 +19,11 @@ const env = {
   PGLITE: 'true',
   NODE_ENV: 'test',
   NEXT_PUBLIC_API_URL: 'http://localhost:3001',
+  AI_PROVIDER: 'anthropic',
 }
+delete env.OPEN_ROUTER_API_KEY
+delete env.OLLAMA_BASE_URL
+delete env.AI_DEFAULT_MODEL
 
 const api = spawn('pnpm', ['--filter', '@repo/api', 'start:ci'], {
   cwd: repoRoot,