Closes #

## 🎯 Changes

What changes are made in this PR? Is it a feature or a bug fix?

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## ✅ Checklist

- [ ] I have followed the steps listed in the [Contributing
guide](https://github.com/trpc/trpc/blob/main/CONTRIBUTING.md).
- [ ] If necessary, I have added documentation related to the changes
made.
- [ ] I have added or updated the tests related to the changes made.

## Problem

The `SponsorBubbles` component renders **zero HTML** during Docusaurus
SSG, making all sponsor links in the "All Sponsors" section invisible to
search engine crawlers.

**Root cause:** `@visx/responsive`'s `ParentSize` uses `useParentSize`
which returns `{ width: 0 }` during SSG (no DOM/ResizeObserver). The
component's guard `width < 10 ? null : (...)` then returns `null`,
producing no HTML output.

**Verified:** Fetching `trpc.io` raw HTML confirms the "All Sponsors"
section contains only a heading and "Become a Sponsor" button — zero
sponsor `<a>` tags. The `TopSponsors` component (top 5) renders fine
since it doesn't depend on `ParentSize`.

## Fix

Replace the `null` SSG fallback with a simple grid of sponsor links.
When `ParentSize` can't measure (SSG/SSR), render plain `<a>` + `<img>`
tags for all sponsors. Once the client hydrates and measures the parent
width, the interactive bubble visualization takes over as before.

**Changes:** 1 file, ~25 lines added — only `SponsorBubbles.jsx`.

## Verification

Built the Docusaurus site locally and confirmed:
- **Before:** `grep -c "automatio.ai" build/index.html` → **0** (no
sponsor links in HTML)
- **After:** `grep -c "automatio.ai" build/index.html` → **1** (all
sponsor links present)
- **19 unique sponsor URLs** now appear in the static HTML
- Zero new build warnings (111 pre-existing HTML minifier warnings
unchanged)
- Interactive bubble visualization still works identically on the client

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## Summary by CodeRabbit

## Release Notes

* **Bug Fixes**
* Fixed sponsor display on extremely small viewports. Sponsors now
render with a simplified layout instead of being hidden.

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Closes #7272

## 🎯 Changes

Fixed error handling when tRPC is used with Node VM by attempting to
show the error message for implicitly thrown errors.

## ✅ Checklist

- [x] I have followed the steps listed in the [Contributing
guide](https://github.com/trpc/trpc/blob/main/CONTRIBUTING.md).
- [ ] If necessary, I have added documentation related to the changes
made.
- [x] I have added or updated the tests related to the changes made.


<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit

* **Refactor**
* Improved runtime error conversion so created errors retain message
text and original enumerable properties when origin is an unknown value.
* **Tests**
* Added regression tests covering non-string or missing messages,
preservation of extra fields, and cross-realm VM error messages.
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