[codex] Stabilize tests and local maintenance assets (#4423)

## Thinking Path

> - Paperclip orchestrates AI agents for zero-human companies
> - A fast-moving control plane needs stable local tests and repeatable
local maintenance tools so contributors can safely split and review work
> - Several route suites needed stronger isolation, Codex manual model
selection needed a faster-mode option, and local browser cleanup missed
Playwright's headless shell binary
> - Storybook static output also needed to be preserved as a generated
review artifact from the working branch
> - This pull request groups the test/local-dev maintenance pieces so
they can be reviewed separately from product runtime changes
> - The benefit is more predictable contributor verification and cleaner
local maintenance without mixing these changes into feature PRs

## What Changed

- Added stable Vitest runner support and serialized route/authz test
isolation.
- Fixed workspace runtime authz route mocks and stabilized
Claude/company-import related assertions.
- Allowed Codex fast mode for manually selected models.
- Broadened the agent browser cleanup script to detect
`chrome-headless-shell` as well as Chrome for Testing.
- Preserved generated Storybook static output from the source branch.

## Verification

- `pnpm exec vitest run
src/__tests__/workspace-runtime-routes-authz.test.ts
src/__tests__/claude-local-execute.test.ts --config vitest.config.ts`
from `server/` passed: 2 files, 19 tests.
- `pnpm exec vitest run src/server/codex-args.test.ts --config
vitest.config.ts` from `packages/adapters/codex-local/` passed: 1 file,
3 tests.
- `bash -n scripts/kill-agent-browsers.sh &&
scripts/kill-agent-browsers.sh --dry` passed; dry-run detected
`chrome-headless-shell` processes without killing them.
- `test -f ui/storybook-static/index.html && test -f
ui/storybook-static/assets/forms-editors.stories-Dry7qwx2.js` passed.
- `git diff --check public-gh/master..pap-2228-test-local-maintenance --
. ':(exclude)ui/storybook-static'` passed.
- `pnpm exec vitest run
cli/src/__tests__/company-import-export-e2e.test.ts --config
cli/vitest.config.ts` did not complete in the isolated split worktree
because `paperclipai run` exited during build prep with `TS2688: Cannot
find type definition file for 'react'`; this appears to be caused by the
worktree dependency symlink setup, not the code under test.
- Confirmed this PR does not include `pnpm-lock.yaml`.

## Risks

- Medium risk: the stable Vitest runner changes how route/authz tests
are scheduled.
- Generated `ui/storybook-static` files are large and contain minified
third-party output; `git diff --check` reports whitespace inside those
generated assets, so reviewers may choose to drop or regenerate that
artifact before merge.
- No database migrations.

> For core feature work, check [`ROADMAP.md`](ROADMAP.md) first and
discuss it in `#dev` before opening the PR. Feature PRs that overlap
with planned core work may need to be redirected — check the roadmap
first. See `CONTRIBUTING.md`.

## Model Used

- OpenAI Codex coding agent based on GPT-5, with shell, git, Paperclip
API, and GitHub CLI tool use in the local Paperclip workspace.

## Checklist

- [x] I have included a thinking path that traces from project context
to this change
- [x] I have specified the model used (with version and capability
details)
- [x] I have checked ROADMAP.md and confirmed this PR does not duplicate
planned core work
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [x] If this change affects the UI, I have included before/after
screenshots
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] I will address all Greptile and reviewer comments before
requesting merge

Note: screenshot checklist item is not applicable to source UI behavior;
the included Storybook static output is generated artifact preservation
from the source branch.

---------

Co-authored-by: Paperclip <noreply@paperclip.ing>

server/src/__tests__/agent-adapter-validation-routes.test.ts

@@ -148,6 +148,33 @@ async function createApp() {
   return app;
 }
 
+async function requestApp(
+  app: express.Express,
+  buildRequest: (baseUrl: string) => request.Test,
+) {
+  const { createServer } = await vi.importActual<typeof import("node:http")>("node:http");
+  const server = createServer(app);
+  try {
+    await new Promise<void>((resolve) => {
+      server.listen(0, "127.0.0.1", resolve);
+    });
+    const address = server.address();
+    if (!address || typeof address === "string") {
+      throw new Error("Expected HTTP server to listen on a TCP port");
+    }
+    return await buildRequest(`http://127.0.0.1:${address.port}`);
+  } finally {
+    if (server.listening) {
+      await new Promise<void>((resolve, reject) => {
+        server.close((error) => {
+          if (error) reject(error);
+          else resolve();
+        });
+      });
+    }
+  }
+}
+
 async function unregisterTestAdapter(type: string) {
   const { unregisterServerAdapter } = await import("../adapters/index.js");
   unregisterServerAdapter(type);
@@ -161,7 +188,7 @@ describe("agent routes adapter validation", () => {
     vi.doUnmock("../middleware/index.js");
     vi.doUnmock("../routes/agents.js");
     registerModuleMocks();
-    vi.resetAllMocks();
+    vi.clearAllMocks();
     mockCompanySkillService.listRuntimeSkillEntries.mockResolvedValue([]);
     mockCompanySkillService.resolveRequestedSkillKeys.mockResolvedValue([]);
     mockAccessService.canUser.mockResolvedValue(true);
@@ -207,12 +234,14 @@ describe("agent routes adapter validation", () => {
     registerServerAdapter(externalAdapter);
 
     const app = await createApp();
-    const res = await request(app)
-      .post("/api/companies/company-1/agents")
-      .send({
-        name: "External Agent",
-        adapterType: "external_test",
-      });
+    const res = await requestApp(app, (baseUrl) =>
+      request(baseUrl)
+        .post("/api/companies/company-1/agents")
+        .send({
+          name: "External Agent",
+          adapterType: "external_test",
+        }),
+    );
 
     expect(res.status, JSON.stringify(res.body)).toBe(201);
     expect(res.body.adapterType).toBe("external_test");
@@ -220,12 +249,14 @@ describe("agent routes adapter validation", () => {
 
   it("rejects unknown adapter types even when schema accepts arbitrary strings", async () => {
     const app = await createApp();
-    const res = await request(app)
-      .post("/api/companies/company-1/agents")
-      .send({
-        name: "Missing Adapter",
-        adapterType: missingAdapterType,
-      });
+    const res = await requestApp(app, (baseUrl) =>
+      request(baseUrl)
+        .post("/api/companies/company-1/agents")
+        .send({
+          name: "Missing Adapter",
+          adapterType: missingAdapterType,
+        }),
+    );
 
     expect(res.status, JSON.stringify(res.body)).toBe(422);
     expect(String(res.body.error ?? res.body.message ?? "")).toContain(`Unknown adapter type: ${missingAdapterType}`);