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.

plugin-examples/linear/index.ts

@@ -1,4 +1,4 @@
-import type { PluginContext } from "@paseo/plugin";
+import type { PluginContext } from "@getpaseo/plugin";
 import { searchIssues } from "./issues.server";
 import { issueAttachments, searchIssuesRpc } from "./issues.shared";
 

plugin-examples/linear/issues.server.ts

@@ -1,4 +1,4 @@
-import type { PluginAttachmentSearchPayload } from "@paseo/plugin/server";
+import type { PluginAttachmentSearchPayload } from "@getpaseo/plugin/server";
 import type { output as ZodOutput } from "zod";
 import { searchIssuesRpc } from "./issues.shared";
 import { createLinearIssueSearch } from "./linear";

plugin-examples/linear/issues.shared.ts

@@ -1,4 +1,4 @@
-import { defineAttachmentSource, defineRpc } from "@paseo/plugin/server";
+import { defineAttachmentSource, defineRpc } from "@getpaseo/plugin/server";
 import { z } from "zod";
 
 const SearchPayloadSchema = z.object({

plugin-examples/local-plugin/increment.shared.ts

@@ -1,4 +1,4 @@
-import { defineRpc } from "@paseo/plugin/server";
+import { defineRpc } from "@getpaseo/plugin/server";
 import { z } from "zod";
 
 export const incrementRpc = defineRpc({

plugin-examples/local-plugin/index.ts

@@ -1,4 +1,4 @@
-import type { PluginContext } from "@paseo/plugin";
+import type { PluginContext } from "@getpaseo/plugin";
 import { ExamplePanel } from "./main.client";
 import { increment } from "./increment.server";
 import { incrementRpc } from "./increment.shared";

plugin-examples/local-plugin/main.client.tsx

@@ -1,5 +1,5 @@
 import { useMutation } from "@tanstack/react-query";
-import { type PluginWorkspacePanelProps, useRpc, useWorkspace } from "@paseo/plugin";
+import { type PluginWorkspacePanelProps, useRpc, useWorkspace } from "@getpaseo/plugin";
 import React, { useCallback, useMemo } from "react";
 import { Pressable, Text, View } from "react-native";
 import { incrementRpc } from "./increment.shared";