Add BuildResourceURL helper and wire it into doc/sheets/drive/base/wiki
create paths so callers always receive a clickable link, even when the
backend response (MCP degraded path or upstream OpenAPI) returns an
empty URL field. The fallback uses the brand-standard host
(www.feishu.cn / www.larksuite.com), which redirects to the tenant
domain.
Affected entries:
- docs +create v1 / v2
- sheets +create
- drive +create-folder / +import / +upload (newly exposes url)
- wiki +node-create (newly exposes url)
drive +create-shortcut is intentionally skipped because the URL form
depends on the underlying file kind, which the shortcut payload does
not carry.
