v0.3.0

spanbox v0.3.0

- Capture by proxy: /proxy/anthropic, /proxy/openai, /proxy/gemini passthrough routes turn every model call into an llm span (usage, cache, thinking tokens, full request/response, session grouping) with no SDK or instrumentation
- Proxy auth via X-Spanbox-Token header or /proxy/t/<token>/ path
- Sessions page
- Langfuse native OTLP path and Basic auth: switch a Langfuse app with env vars only
- Pricing accounts for Anthropic cache creation tokens