docs: add step-by-step example scenarios to today's new module pages
Invites, Embed-Builder, and Temp Roles pages now include a concrete
walkthrough (not just command reference), matching the level of
detail requested for other pages ("auch für Doofe"). Also fixed a
slightly misleading line in GrumpyEmbed(-EN).md that implied no
permission was required.
docs: document new Temp Roles module (GrumpyTempRoles/-EN)
Deployed 2026-07-11: /temprole add|list|remove, timed role grants
independent of the Tempban system, 1-min expiry runner mirroring
mod/autoUnban.ts. Linked from Home.md + _Sidebar.md. This closes out
Tier 2 (Invites-Tracker, Embed-Builder, Temp Roles all documented).
