#7335 fix(selectors): paginate SharePoint sites and lists

Summary

• replace the silent ten-page SharePoint site/list drain with cursor-backed Microsoft Graph pagination
• expose provider-side site search while keeping list search local
• preserve direct site/list detail hydration, credential bindings, abort propagation, and Graph destination validation
• keep Excel consent issue #7197 separate and out of scope

Type of Change

• Bug fix
• New feature
• Breaking change
• Documentation
• Other

Testing

• bun run --cwd apps/sim test lib/selectors/server/providers/sharepoint.test.ts lib/selectors/server/providers/microsoft.test.ts lib/selectors/manifest.test.ts hooks/queries/selectors.test.tsx — 4 files, 28 tests passed
• SharePoint provider coverage verifies site/list cursor continuation, site search forwarding, invalid Graph destination rejection, and existing direct detail hydration
• bun run check:api-validation:strict — passed
• bun run check:fork-dependent-coverage — passed
• bun run check:client-boundary — passed
• scoped Biome check and git diff --check — passed
• bun run --cwd apps/sim type-check currently fails in unrelated files on the staging base: workflow-output-selector types and the new color utility export
• live Microsoft Graph validation was not performed because no native SharePoint tenant credential was available

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

Screenshots/Videos

Not applicable; no live SharePoint tenant was available for browser validation.