fix(repos): read the SSH registry directly so the runtime stays Node-bootable

Routing runtime project setup through addRemoteRepoFromPath dragged ipc/ssh --
and its 25-module electron graph -- into the runtime bundle. ssh-target-registry
already exists for exactly this; ipc/ssh only re-exports it.

src/main/ipc/repos/remote-home-path.ts

@@ -1,4 +1,4 @@
-import { getActiveMultiplexer } from '../ssh'
+import { getActiveMultiplexer } from '../../ssh/ssh-target-registry'
 
 export async function resolveRemoteHomePath(connectionId: string, path: string): Promise<string> {
   if (path !== '~' && path !== '~/' && !path.startsWith('~/')) {

src/main/ipc/repos/remote-repo-registration.ts

@@ -6,7 +6,7 @@ import { normalizeRuntimePathForComparison } from '../../../shared/cross-platfor
 import { getRepoSshConnectionId } from '../../../shared/execution-host'
 import { getSshGitProvider } from '../../providers/ssh-git-dispatch'
 import { detectRepoIconAndUpstream } from '../../repo-icon-autodetect'
-import { getActiveMultiplexer } from '../ssh'
+import { getActiveMultiplexer } from '../../ssh/ssh-target-registry'
 import { resolveRemoteHomePath } from './remote-home-path'
 
 export async function addRemoteRepoFromPath(