v0.1.9-rc2 - sync opencode upstream v1.15.0

v0.1.9-rc1 - forward image parts on @ai-sdk/openai-compatible proxies…

… (fixes screenshot drop in V4)

v0.1.8 - headless bcode run telemetry: turn parent span lands in Laminar

v0.1.8-rc6 - track pending flushes so shutdown awaits in-flight OTLP …

…exports