fix(mail): search every owned job

Replace ineffective pageSize=100 selectors with a bounded owner-filtered search endpoint for composing and moving linked threads.

job-tracker-ui/src/correspondence-inbox-page.test.tsx

@@ -66,6 +66,7 @@ describe('CorrespondenceInboxPage', () => {
         },
       ] } as any);
       if (url === '/email/drafts') return Promise.resolve({ data: [] } as any);
+      if (url === '/jobapplications/choices') return Promise.resolve({ data: [] } as any);
       if (url === '/email/message') return Promise.resolve({ data: {
         id: 'message-1', threadId: 'thread-1', subject: 'Interview invite', from: 'Maria Recruiter <maria@acme.test>', to: 'user@example.test',
         date: new Date().toISOString(), snippet: 'Interview', bodyText: 'Please choose an interview time.', labels: ['INBOX'], attachments: [{ fileName: 'agenda.pdf' }],
@@ -328,9 +329,9 @@ describe('CorrespondenceInboxPage', () => {
         { provider: 'gmail', displayName: 'Gmail', connected: true, address: 'owner@gmail.test', canRead: true, canSend: true },
         { provider: 'microsoft', displayName: 'Outlook', connected: true, address: 'owner@outlook.test', canRead: true, canSend: false },
       ] } as any);
-      if (url === '/jobapplications') return Promise.resolve({ data: { items: [
-        { id: 42, jobTitle: 'Backend Engineer', company: { name: 'Acme Systems' } },
-      ] } } as any);
+      if (url === '/jobapplications/choices') return Promise.resolve({ data: [
+        { id: 42, jobTitle: 'Backend Engineer', companyName: 'Acme Systems' },
+      ] } as any);
       return original!(url, config);
     });
     mockedApi.post.mockImplementation((url: string) => {
@@ -371,6 +372,34 @@ describe('CorrespondenceInboxPage', () => {
     }));
   });
 
+  test('searches the complete server-side job choice set while composing', async () => {
+    const original = mockedApi.get.getMockImplementation();
+    mockedApi.get.mockImplementation((url: string, config?: any) => {
+      if (url === '/email/providers') return Promise.resolve({ data: [
+        { provider: 'gmail', displayName: 'Gmail', connected: true, address: 'owner@gmail.test', canRead: true, canSend: true },
+      ] } as any);
+      if (url === '/jobapplications/choices') {
+        return Promise.resolve({ data: config?.params?.q === 'Historic'
+          ? [{ id: 7, jobTitle: 'Historic target role', companyName: 'Archive Co' }]
+          : [{ id: 42, jobTitle: 'Recent role', companyName: 'Acme Systems' }] } as any);
+      }
+      return original!(url, config);
+    });
+
+    renderPage();
+    const compose = await screen.findByRole('button', { name: /compose new email/i });
+    await waitFor(() => expect(compose).toBeEnabled());
+    fireEvent.click(compose);
+    fireEvent.change(screen.getByRole('combobox', { name: /^job$/i }), { target: { value: 'Historic' } });
+
+    await waitFor(() => expect(mockedApi.get).toHaveBeenCalledWith('/jobapplications/choices', {
+      params: { q: 'Historic', limit: 20 },
+    }));
+    fireEvent.click(await screen.findByRole('option', { name: /Archive Co.*Historic target role/i }));
+    fireEvent.click(screen.getByRole('button', { name: /start draft/i }));
+    expect(screen.getByText(/Archive Co.*Historic target role/i)).toBeInTheDocument();
+  });
+
   test('does not offer retry when delivery is uncertain', async () => {
     const original = mockedApi.get.getMockImplementation();
     mockedApi.get.mockImplementation((url: string, config?: any) => {