fix(setup): verify published configuration content during uninstall

Require publication readback in the owning check so in-place edits are detected and preserved with the original backup.

src/application/ClientConfigurationPublication.ts

@@ -169,12 +169,12 @@ export class ClientConfigurationPublication {
     return outcome.value;
   }
 
-  async assertCurrent(readback?: string): Promise<void> {
+  async assertCurrent(readback: string): Promise<void> {
     const owned = await this.owner.handle.stat();
     const named = await lstat(this.path);
     if (
       owned.ino === 0 ||
-      (readback !== undefined && readback !== this.contents) ||
+      readback !== this.contents ||
       named.isSymbolicLink() ||
       !sameRegularFileState(owned, named)
     )

src/application/Uninstall.ts

@@ -963,11 +963,9 @@ const removeClient = async (
   try {
     return await publication.verify(async () => {
       try {
-        const readback = parseClientConfiguration(
-          await fileSystem.readText(publication.path),
-          client.format,
-        );
-        await publication.assertCurrent();
+        const text = await fileSystem.readText(publication.path);
+        await publication.assertCurrent(text);
+        const readback = parseClientConfiguration(text, client.format);
         if (
           (removeNative && Object.hasOwn(readback.servers, name)) ||
           (readback.dialect === "dsh" &&