release(ui-merge): the objectui-side half as a patch for the cutover window, and the changeset (objectstack#25711, WIP)

scripts/ui-import/4a-ui-side.patch removes objectui's pin on objectstack, the
dist-injection Vite probes, objectui's own release lane and its own Changesets
config inside ui/. ui/ does not exist on main until the subtree PR of sub-issue
5, so it ships as a patch with its apply and verify commands in the README.

Co-Authored-By: Claude <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0149BHSXfCdQywGaLdpRAtWe

Author: claude

.changeset/25711-console-built-in-workspace.md

@@ -0,0 +1,15 @@
+---
+'@objectstack/console': patch
+'@objectstack/cli': patch
+---
+
+build(console): `@objectstack/console` is built in this workspace from `ui/apps/console`, and the Console no longer arrives through a pinned objectui commit
+
+Clause-②: no
+Metadata-protocol: none
+
+- **The package.** `@objectstack/console` ships the same `dist/` it shipped at 18.1.0: the built Console (`index.html`, `assets/`, the manifests it served). Two files leave the tarball: `dist/.objectui-sha`, which named the objectui commit the Console was built from, and `dist/.objectstack-injection.json`, which recorded the spec and client dists injected into that build. Both described a pin that no longer exists: the Console is built from the `ui/` tree of the same commit as the framework, so its version is the framework's version.
+- **The CLI.** When a framework checkout has no built Console, `objectstack serve` / `objectstack dev` and the 503 at `/_console/` now name `pnpm console:build`, which builds `ui/apps/console` and copies its dist into `packages/console`. The remedy used to be `pnpm objectui:build`, which cloned objectui at the pinned commit.
+- **One version.** The `@object-ui/*` packages join the `@objectstack/*` fixed group, so every public package of both scopes publishes at one version.
+
+What to do: nothing as a consumer; install `@objectstack/console` as before. In a framework checkout, run `pnpm console:build` where you ran `pnpm objectui:build`.