Rebase fold on the salvaged gate:
- is_trivial_prompt/TRIVIAL_PROMPT_RE move to agent/memory_provider (the
ABC both the core gate and providers already import) — one source of
truth; honcho's _TRIVIAL_PROMPT_RE now aliases it, turn_context and the
queue_prefetch_all warm path (a sibling site main grew after the PR's
base) both use it
- tests: gate tests at the prefetch call site (mutation-checked), shared
classifier tests incl. prefix-collision guards (k8s/yolo/note/supper),
and honcho dialectic-machinery tests re-driven with a substantive prompt
("hello" became trivial by design — those tests exercise thread cadence,
not the classifier)
c093492b06