feat(session): expose persisted flag in session-profile structured output

`session_use_defaults_profile` already wrote `persisted: true` into its result
when called with `persist: true`, but the type and schema didn't surface it,
so JSON consumers couldn't rely on the field.

- Adds `persisted?: boolean` to `SessionProfileDomainResult`.
- Adds the field to `xcodebuildmcp.output.session-profile/1.schema.json`.
- Switches the persist-success unit test to verify the structured output
  carries `persisted: true` (in addition to the existing log assertion).
- Adds a snapshot fixture exercising the persist-success path.

Author: cameroncooke

schemas/structured-output/xcodebuildmcp.output.session-profile/1.schema.json

@@ -33,6 +33,9 @@
         },
         "currentProfile": {
           "type": "string"
+        },
+        "persisted": {
+          "type": "boolean"
         }
       },
       "required": [

src/mcp/tools/session-management/__tests__/session_use_defaults_profile.test.ts

@@ -9,7 +9,11 @@ import {
   schema,
   sessionUseDefaultsProfileLogic,
 } from '../session_use_defaults_profile.ts';
-import { allText, runLogic } from '../../../../test-utils/test-helpers.ts';
+import {
+  allText,
+  createMockToolHandlerContext,
+  runLogic,
+} from '../../../../test-utils/test-helpers.ts';
 
 describe('session-use-defaults-profile tool', () => {
   beforeEach(() => {
@@ -83,11 +87,11 @@ describe('session-use-defaults-profile tool', () => {
     sessionStore.setActiveProfile('ios');
     sessionStore.setActiveProfile(null);
 
-    const result = await runLogic(() =>
-      sessionUseDefaultsProfileLogic({ profile: 'ios', persist: true }),
-    );
-    expect(result.isError).toBeFalsy();
-    expect(allText(result)).toContain('Persisted active profile selection');
+    const { ctx, result, run } = createMockToolHandlerContext();
+    await run(() => sessionUseDefaultsProfileLogic({ profile: 'ios', persist: true }));
+    expect(result.isError()).toBe(false);
+    expect(result.text()).toContain('Persisted active profile selection');
+    expect(ctx.structuredOutput?.result).toMatchObject({ persisted: true });
     expect(writes).toHaveLength(1);
     const parsed = parseYaml(writes[0].content) as { activeSessionDefaultsProfile?: string };
     expect(parsed.activeSessionDefaultsProfile).toBe('ios');

src/snapshot-tests/__fixtures__/json/session-management/session-use-defaults-profile--persist-success.json

@@ -0,0 +1,11 @@
+{
+  "schema": "xcodebuildmcp.output.session-profile",
+  "schemaVersion": "1",
+  "didError": false,
+  "error": null,
+  "data": {
+    "previousProfile": "(default)",
+    "currentProfile": "MyCustomProfile",
+    "persisted": true
+  }
+}

src/types/domain-results.ts

@@ -566,6 +566,7 @@ export type SessionProfileDomainResult = ToolDomainResultBase & {
   kind: 'session-profile';
   previousProfile: string;
   currentProfile: string;
+  persisted?: boolean;
 };
 export type SimulatorActionResultDomainResult = ToolDomainResultBase & {
   kind: 'simulator-action-result';