refactor(native): remove unreachable command routing branches

src/native/CommandRunner.ts

@@ -223,18 +223,16 @@ export class XcrunCommandRunner implements NativeCommandRunner {
       this.launcher,
     );
     if (!captured.ok) return err(this.#retainCleanupOwner(captured.error));
-    return captured.ok
-      ? ok({
-          ...captured.value,
-          tool,
-          executable: resolved.value.path,
-          executableSha256: resolved.value.sha256,
-          toolVersion: null,
-          versionReason:
-            "Tool exposes no uniform stable version flag; executable SHA-256 is a prelaunch file sample and does not prove atomic OS image binding.",
-          arguments: [...arguments_],
-        })
-      : captured;
+    return ok({
+      ...captured.value,
+      tool,
+      executable: resolved.value.path,
+      executableSha256: resolved.value.sha256,
+      toolVersion: null,
+      versionReason:
+        "Tool exposes no uniform stable version flag; executable SHA-256 is a prelaunch file sample and does not prove atomic OS image binding.",
+      arguments: [...arguments_],
+    });
   }
 
   async #retryCleanup(): Promise<readonly NativeCommandCleanupFailure[]> {

src/native/NativeMacOSProvider.ts

@@ -352,7 +352,7 @@ class NativeMacOSClient implements AnalysisClient {
       return this.#observeNativeUi(operation, parameters, options?.signal);
     }
     const pending = Promise.resolve().then(() =>
-      this.#dispatch(operation, parameters, options?.signal),
+      this.#dispatchCommand(operation, parameters, options?.signal),
     );
     this.#pendingCommandOperations.add(pending);
     try {
@@ -572,33 +572,6 @@ class NativeMacOSClient implements AnalysisClient {
     return new NativeUiCleanupError(failures, operation, partialObservation);
   }
 
-  #dispatch(
-    operation: NativeToolName,
-    parameters: Readonly<Record<string, JsonValue>>,
-    signal?: AbortSignal,
-  ): Promise<Result<NativeObservation, AnalysisError>> {
-    switch (operation) {
-      case "observe_native_ui":
-      case "capture_native_ui_scenario":
-      case "observe_native_calls":
-        return Promise.resolve(
-          err(
-            new AnalysisCapabilityUnavailableError(
-              IDENTITY.id,
-              operation,
-              "UI observation uses its explicit authority boundary",
-            ),
-          ),
-        );
-      case "inspect_macho":
-      case "inspect_signature":
-      case "inspect_plist":
-      case "list_architectures":
-      case "demangle_swift":
-        return this.#dispatchCommand(operation, parameters, signal);
-    }
-  }
-
   #dispatchCommand(
     operation:
       | "inspect_macho"