feat: LLM observability via OTLP (Langfuse and any collector) - #27
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Add optional squad.OTLPConfig and traces.ResolveSettings with env-wins precedence. Empty endpoint is unset (no autoexport). Default protocol http/protobuf; capture defaults false. Unknown protocol errors.
Map OpenCode Prompt Info into RunResult, share traces.Write for JSONL plus optional push, skip double-record from watch via SkipRecord, and exit 2 on a bad OTLP protocol before work starts.
File spans.jsonl is default; endpoint env enables live push. Both http/protobuf and grpc; capture default off. Aspire stays wont-port consumer. CONTRIBUTING notes live-traces.ps1.
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Summary
runandwatch --executenow record a parent span plus agen_ai.chatchild (model, tokens, cost, local prompt/completion) to.squad/traces/spans.jsonl. Live OTLP push uses the official Go SDK (http/protobufdefault andgrpc) only when an endpoint is set. Nosquad-oc aspire; Aspire stays a valid consumer, not a shipped dashboard..squad/config.jsonotlp.*. Empty endpoint starts no provider (no localhost:4318 default).OTEL_INSTRUMENTATION_GENAI_CAPTURE_MESSAGE_CONTENT). JSONL always stores bodies;traces --exportnever includes them.tracestable adds MODEL / TOKENS / COST and a generation-only cost footer.scripts/live-traces.ps1onD:\xAI\squad-oc-dummyplusscripts/langfuse/(Langfuse v4, 127.0.0.1). CI staysgo test ./....opencode/big-pickle,opencode/hy3-free). This host has noxai/anthropicproviders until/connect.Beads:
squad-2on.1(and children). TUI/SQLite scrape is stillsquad-t9d.Test plan
gofmton changed Go filesgo vet ./...golangci-lint run --timeout=4mgo test ./... -count=1go test -race -count=1on traces / opencodeclient / watch (WinLibs gcc)govulncheck ./...go build ./cmd/squad-ocactionlintscripts/live-traces.ps1on dummy (JSONL + local Langfuse v4 ingest)cicheck on this PR