Mutation - createTimeEntries

Creates or updates workspace members' unsubmitted time entries. Workspace admins may target multiple members in one batch, including former (removed) members for historical imports; other callers may target only themselves. API keys act as their owning user and inherit that user's permissions, so admin-owned keys have the same cross-user access. Entries are grouped into weekly timesheets and upserted by user, container, category, and date. Submitted, approved, locked, unauthorized-user, and never-member writes are rejected. Use submitMyTimesheetsForApproval and updateTimesheetsStatus for status transitions.