bendtherules 627b80008e feat(langfuse): add opt-in Langfuse observability integration ...

Add Langfuse as an OTel trace transport for MCP request lifecycle tracking.

Changes:
- New src/lib/langfuse-transport.ts: initializes LangfuseSpanProcessor when
  ASK262_LANGFUSE_ENABLED=true with valid credentials
- src/lib/tracing.ts: add metadata to TraceContext, propagate it to child spans,
  use startActiveSpan for proper OTel context, add setupTracing() entry point,
  add getSessionMetadata() for version/transport metadata
- src/lib/logger.ts: include TraceContext.metadata in JSON log mixin
- src/mcp-server-{http,stdio}.ts: call setupTracing() at startup, pass
  version/transport metadata through withSpan/withSpanContext
- src/lib/fireworks-embeddings.ts: wrap API calls in withSpan() with gen_ai
  attributes for Langfuse generation/cost tracking
- .env.example: add LANGFUSE_* configuration variables
- AGENTS.md: document Langfuse integration
- package.json: add @langfuse/tracing, @langfuse/otel, @opentelemetry/sdk-node

2026-04-27 18:31:19 +05:30

..

plans

feat(langfuse): add opt-in Langfuse observability integration

2026-04-27 18:31:19 +05:30

tools

fix: update Ollama embedding model version to 8b in code and documentation

2026-04-23 12:07:23 +05:30

.gitignore

Fix .opencode/gitignore

2026-04-08 12:01:21 +05:30

bun.lock

Fix .opencode/gitignore

2026-04-08 12:01:21 +05:30

package-lock.json

build: ask262Debug

2026-04-08 13:55:13 +05:30

package.json

chore(types) - Fix type checks

2026-04-14 16:47:20 +05:30