fix(connectors): key the library-prefix hint on the library actually searched

Deriving the flag from `!libraryMatch` suppressed the hint when the path named
the default library itself ("Documents/Reports"), which is exactly the case the
hint exists for. Key it on whether the reported drive is the default library.

Author: waleedlatif1

apps/sim/connectors/sharepoint/sharepoint.test.ts

@@ -283,6 +283,20 @@ describe('resolveFolderTarget', () => {
     expect(message).not.toContain('Shared Documents" should be omitted')
   })
 
+  it('still offers the prefix hint when the path names the default library itself', async () => {
+    mockGraph({
+      ...defaultDriveRoute,
+      ...sitesDrivesRoute,
+      ...rootChildren(DEFAULT_DRIVE_ID, [folder('d1', 'Archive')]),
+    })
+
+    const error = await resolve('Shared Documents/Reports').catch((e: Error) => e)
+
+    const message = (error as Error).message
+    expect(message).toContain('document library "Documents"')
+    expect(message).toContain('Shared Documents" should be omitted')
+  })
+
   it('surfaces a failure to open the default library rather than reporting not-found', async () => {
     mockGraph({
       [`${GRAPH}/sites/${SITE_ID}/drive?$select=id,name,webUrl`]: { status: 403 },

apps/sim/connectors/sharepoint/sharepoint.ts

@@ -545,7 +545,7 @@ export async function resolveFolderTarget(
       trimmed,
       libraryMatch ? segments.slice(1) : segments,
       drives,
-      !libraryMatch,
+      reportDrive.id === defaultDrive.id,
       retryOptions
     )
   )