Closes#620#497. Add opt-in Langfuse observability covering all five
model types (chat, embedding, rerank, VLM, ASR) with HTTP-request-scoped
traces and Docker Compose support (both cloud and self-hosted).
Core package internal/tracing/langfuse:
- HTTP client with batched async ingestion (non-blocking in request path)
- Sampling, environment / release tagging, and graceful fallback when
LANGFUSE_* env vars are absent (wrappers become no-ops)
- Gin middleware opens one trace per traced request and finishes it after
the handler chain returns, attaching method / path / user / session
- Trace context is stored under a typed key exported from internal/types
so logger.CloneContext can preserve it across handler / goroutine
boundaries (otherwise each LLM call auto-created an orphan trace,
fragmenting one request into many)
Per-model generation wrappers (opt-in via NewChat/NewEmbedder/...):
- chat: captures prompt, streaming output, token usage + TTFT
- embedding: approximates tokens when the provider omits usage
- rerank: previews query/docs, summarizes results to keep payload small
- vlm: records image count and total bytes, never uploads raw pixels
- asr: records file size and audio duration, never uploads audio bytes
Async title generation (GenerateTitleAsync) now forwards the trace key
into the goroutine so title calls appear under the parent chat trace.
Docker Compose:
- LANGFUSE_* env passthrough on the `app` service for cloud deployments
- Optional `langfuse` profile spins up a self-hosted Langfuse stack that
reuses WeKnora's existing PostgreSQL (separate database via an idempotent
init container that fixes ICU collation drift) and Redis (separate DB
number), adding only ClickHouse, MinIO, web and worker containers
- web/worker entrypoints URL-encode DB_PASSWORD / REDIS_PASSWORD at start
to avoid Prisma P1013 when passwords contain @ / # / etc.
Docs: docs/Langfuse集成.md covers cloud vs self-hosted, per-model usage
strategy, code map, and resource footprint.
- Added a new `.env.lite.example` file for the Lite version, providing a minimal configuration template.
- Updated `.env.example` to remove deprecated variables and include new Docreader settings.
- Enhanced Docker configurations to support the Lite version, including a new Dockerfile for the Docreader service.
- Introduced a Makefile target for building and running the Lite version, along with packaging capabilities.
- Created GitHub workflows for building and releasing Lite binaries, including Homebrew formula support.
- Implemented a new service file for managing the Lite version as a system service.
This update enables a streamlined, single-binary deployment of WeKnora, reducing external dependencies and simplifying setup.
- Added container name for the sandbox service in both docker-compose.dev.yml and docker-compose.yml.
- Changed the profile from 'sandbox' to 'full' for the sandbox service, enhancing its integration within the application.
- Added logging for skill availability and sandbox mode in the skill handler, improving debugging capabilities.
- Updated .env.example to set default sandbox mode to 'docker' and added timeout and docker image variables.
- Modified docker-compose files to include a sandbox service for building and pulling the sandbox image.
- Adjusted frontend API to reflect sandbox availability for skills, ensuring UI elements are conditionally displayed based on sandbox status.
- Implemented backend logic to disable skills when the sandbox is not enabled, improving error handling and user experience.
- Deleted several SQL migration files related to agent configuration, cleanup of unreferenced models, MCP services, and web search configuration.
- Updated docker-compose files to remove references to obsolete SQL migration scripts, streamlining the development environment setup.
- Improved code maintainability by eliminating unnecessary files and configurations.
- Updated agent configuration to support separate system prompts for web search enabled and disabled states.
- Removed deprecated agent configuration parameters to streamline settings management.
- Enhanced UI components in AgentSettings.vue to allow configuration of custom prompts based on web search status.
- Improved localization in English, Russian, and Chinese for new prompt settings and UI elements.
- Refactored related API and service logic to accommodate changes in agent configuration structure.
- Introduced new MCP services functionality, including management routes and integration with the agent service.
- Updated Docker Compose configuration to include a new SQL migration for MCP services.
- Enhanced Makefile with new migration commands for versioning and creating migrations.
- Improved chat component to handle selected MCP services in message processing.
- Updated migration documentation to reflect new strategies and added MCP services migration files.
- Added 'logs/' and '*.pid' to .gitignore to exclude log files and process ID files from version control.
- Expanded Makefile with new development commands for easier local environment management, including 'dev-start', 'dev-stop', 'dev-restart', 'dev-logs', 'dev-status', 'dev-app', and 'dev-frontend'.
- Updated README_CN.md to include instructions for the new development mode and commands for improved developer experience.
