The local _sdk_wedged_reason flag was only observed inside this module
— heartbeat reads runtime_wedge.is_wedged() (universal cross-cutting
holder) and so does the new boot-smoke gate from molecule-core PR
#2473 / task #131. Without the mirror, a wedged claude-code workspace
stayed green-dot on the canvas while every chat hung, AND the
publish-image gate could not catch PR-25-class init wedges before
the broken image shipped to GHCR.
_mark_sdk_wedged now mirrors into runtime_wedge.mark_wedged, and
_clear_sdk_wedge_on_success mirrors into runtime_wedge.clear_wedge.
Both are best-effort — older runtimes that don't ship runtime_wedge
silently no-op the mirror, so a template pinned to an older runtime
still boots. Mirror exceptions are logged but don't suppress the
local sticky flag, so internal callers (retry loop, cancel handler)
see consistent state regardless of the universal-side outcome.
Tests cover: mark mirrors with reason, first-call-wins propagates,
clear mirrors, no-op when not wedged, ImportError-resilience.
Regression-injection-checked: silencing the mirror branch fails the
mark+first-wins tests at unit-test time with a clear message naming
the missing runtime_wedge call.
b2561aa825