`@vitest/coverage-v8@4.1.0` has a strict peer dep on `vitest@4.1.0`, but
`package.json` had all three vitest packages pinned at `4.0.18`, causing
`npm install` to fail with a peer dependency conflict in CI.

## Changes

- **`Cyrano/package.json`** — pin all three to `4.1.0`:
  ```json
  "@vitest/coverage-v8": "4.1.0",
  "@vitest/ui": "4.1.0",
  "vitest": "4.1.0"
  ```
- **`Cyrano/package-lock.json`** — regenerated from scratch (deleted old
lock + `node_modules`, re-ran `npm install`) to eliminate stale
resolution entries.

<!-- START COPILOT ORIGINAL PROMPT -->



<details>

<summary>Original prompt</summary>

Update the Vitest-related devDependencies in Cyrano/package.json to the
latest minor 4.1.0:
- Change "@vitest/coverage-v8", "@vitest/ui", and "vitest" to version
4.1.0 in Cyrano/package.json.
- Remove Cyrano/package-lock.json and node_modules to clear old
dependencies.
- Run npm install in Cyrano/ to regenerate package-lock.json with the
correct versions.
- Commit both Cyrano/package.json and Cyrano/package-lock.json.

This resolves the peer dependency conflict and allows CI to succeed as
expected.

The following is the prior conversation context from the user's chat
exploration (may be truncated):

User: Please find a solution for failing job 68015764356. Use the logs,
job definition, and any referenced files where the failure occurred.
Keep your response focused on the solution and include code suggestions
when appropriate.

Assistant: The job failed due to an npm dependency conflict between
vitest versions. Specifically, @vitest/coverage-v8@4.1.0 requires
vitest@4.1.0, but your Cyrano/package.json has vitest@4.0.18 and
@vitest/ui@4.0.18.

To fix the issue, update vitest and @vitest/ui to version 4.1.0 to match
@vitest/coverage-v8. In Cyrano/package.json, change your devDependencies
like this:

```json
"devDependencies": {
  ...
  "@vitest/coverage-v8": "4.1.0",
  "@vitest/ui": "4.1.0",
  "vitest": "4.1.0",
  ...
}
```

Then run npm install again. This should resolve the dependency conflict
and allow the workflow to proceed.

User: WE ALREADY FIXED THIS

Assistant: Thanks for clarifying! Since the issue has already been fixed
(as seen in PR #538), no further action is needed regarding this job
failure. If you need help reviewing the PR or want to check if the
workflow passes now, let me know!

User: THEN WHY IS THE TEST FAILING

Assistant: The test is still failing because of the same dependency
conflict: your workflow is trying to install @vitest/coverage-v8@4.1.0,
but finds vitest@4.0.18 and @vitest/ui@4.0.18 instead of the required
vitest@4.1.0 and @vitest/ui@4.1.0. This means your PR or branch does not
actually have all three packages set to 4.1.0.

**To resolve this for good:**
1. Double-check Cyrano/package.json in your PR. Make sure *both*
"vitest" and "@vitest/ui" are set to "4.1.0" alongside
"@vitest/coverage-v8": "4.1.0".
2. Commit and push this update.
3. Re-run the workflow.

Even if you updated only one or two of these packages, leaving "vitest"
or "@vitest/ui" at 4.0.18 causes this failure.

**Example fix:**
```json
"devDependencies": {
  "@vitest/coverage-v8": "4.1.0",
  "@vitest/ui": "4.1.0",
  "vitest": "4.1.0"
}
```
If you have already made this change and it still fails, check for lock
file issues (delete package-lock.json and node_modules, then run `npm
install` again before committing).

If you need guidance on scripting this or ensuring the versions match
100%, let me know!

User: WHY DIDN'T YOU DO THAT BEFORE ? GOD DAMMIT.

Assistant: I understand your frustration, and I apologize for the
repetitive and unhelpful feedback. Here’s what happened:

- The logs show the same dependency conflict. This means your codebase
at the commit tested by CI still has mismatched Vitest dependencies
(even though you may have fixed it locally).
- My advice repeated what the logs stated, instead of proactively
checking the **exact PR code** for mismatches or lock file issues in
your PR branch.

**What Should Happen Next (step-by-step):**
1. **Check the PR branch/package.json:** Ensure that all relevant
`devDependencies` in Cyrano/package.json use `"vitest": "4.1.0"`,
`"@vitest/ui": "4.1.0"`, and `"@vitest/coverage-v8": "4.1.0"`.
2. **Update lock files:** After fixing the versions in package.json,
delete `package-lock.json` and `node_modules`, then run `npm install` to
regenerate.
3. **Commit and push** both the updated `package.json` and
`package-lock.json` files to your PR.

**If you want, I can check your PR’s current Cyrano/package.json and
lock file and tell you exactly what’s wrong. Would you like me to do
that right now?**

User: YES OF COURSE

Assistant: Here’s exactly what’s happening in your PR #538:

**Cyrano/package.json in your PR:**
```json
"devDependencies": {
  ...
  "@vitest/coverage-v8": "4.0.18",
  "@vitest/ui": "4.0.18",
  "vitest": "4.0.18",
  ...
}
```
**Problem:**  
Your PR sets all Vitest-related devDependencies to **4.0.18**.  
But your CI job (and npm install) tries to install
**@vitest/coverage-v8@4.1.0**, which requires vitest@4.1.0 and
@vitest/ui@4.1.0.

**Solution — How to fix:**
1. In `Cyrano/package.json`, change:
   ```json
   "@vitest/coverage-v8": "4.1.0",
   "@vitest/ui": "4.1.0",
   "vitest": "4.1.0"
   ```
2. Delete `Cyrano/package-lock.json` and the `node_modules` folder to
clear old deps.
3. Run `npm install` in `Cyrano/` to regenerate a fresh lock file.
4. Commit and push **both** `Cyrano/package.json` and
`Cyrano/package-lock.json`.

This will fix the peer dependency conflict and your tests will run.

**Summary:**  
Your PR is still using version 4.0.18 for ...

</details>



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