fix(plugins): publish the plugin SDK under the @getpaseo scope

The daemon imports the plugin SDK at runtime, but the workspace was named
@paseo/plugin and marked private, so it was never published. 0.5.0-beta.1
shipped @getpaseo/server depending on a package that does not exist and
`npm install @getpaseo/cli@beta` failed with a 404 for every user.

Two things hid it. sync-workspace-versions only rewrites deps matching
@getpaseo/*, so the "*" range on @paseo/plugin survived untouched into the
published tarball. And `npm pack --dry-run`, which is all release:check and
CI run, lists files without ever resolving the dependency graph.

Renaming to @getpaseo/plugin rather than publishing the old name: @paseo is
not our scope on npm, so that name could never have been published at all.
The rename also brings the package under the version-sync filter, which is
what pins it correctly from here on.

Plugins scaffolded against the old name still import @paseo/plugin. Both
spellings resolve through plugin-sdk-specifiers.ts, tagged COMPAT with a
removal date, so existing plugins keep loading.

This does not repair 0.5.0-beta.1 — a published tarball's dependencies
cannot be changed. The package publishes with the next release.

packages/plugin/package.json

@@ -1,7 +1,7 @@
 {
-  "name": "@paseo/plugin",
+  "name": "@getpaseo/plugin",
   "version": "0.5.0-beta.1",
-  "private": true,
+  "description": "Paseo plugin SDK package",
   "files": [
     "dist",
     "!dist/**/*.map"
@@ -24,6 +24,9 @@
       "default": "./dist/host.js"
     }
   },
+  "publishConfig": {
+    "access": "public"
+  },
   "scripts": {
     "clean": "node ../../scripts/clean-package-dist.mjs",
     "build": "tsc -p tsconfig.json --incremental false",
@@ -36,7 +39,7 @@
     "use-sync-external-store": "^1.6.0"
   },
   "devDependencies": {
-    "@getpaseo/client": "*",
+    "@getpaseo/client": "0.5.0-beta.1",
     "@types/node": "^20.9.0",
     "@types/react": "~19.2.0",
     "react": "19.1.0",
@@ -45,7 +48,7 @@
     "zod": "^4.4.3"
   },
   "peerDependencies": {
-    "@getpaseo/client": "*",
+    "@getpaseo/client": "0.5.0-beta.1",
     "react": "19.1.0",
     "zod": "^4.4.3"
   }

packages/plugin/src/server.test.ts

@@ -49,7 +49,7 @@ function collectBareSpecifiers(entry: string): string[] {
   return bare;
 }
 
-describe("@paseo/plugin/server", () => {
+describe("@getpaseo/plugin/server", () => {
   it("does not load react or the client hook graph", () => {
     const specifiers = collectBareSpecifiers(path.join(srcDir, "server.ts"));
     expect(specifiers.filter((specifier) => forbiddenSpecifiers.has(specifier))).toEqual([]);