Tags: ajaxdude/brainrouter

merge: v2.0-p3 — role cards + decision slot + credentials (L3)

Harnesses configure ONCE (brainrouter/auto); role cards with per-selector
strictness, pluggable decision slot (heuristic default), Credentials page,
Decisions panel, v1 config migration with named restore (v2.0-p3).
Bruce Step 9: NO-GO -> fixes -> GO.

v2 phase 2: plugins + bridge pilot + credentials store

v2 phase 1: P0 purge + benchmarks feature gate

v1 classic: pre-v2 control plane (model-selection era). Restored via:…

… git checkout v1-classic