- Restructure docs/deployment/server.md into Docker (Quick Start, Production Recommended, Advanced with Jaeger) and Local deployment.
- Update docs/guide/quick-start.md default docker-compose to use PostgreSQL, Redis, and ClickHouse as default.
- Introduced `filterCertificateSupportFiles` function to filter support files for certificates in `agent.go`.
- Updated placeholder constants in `config_version.go` to reflect changes from support directory to certificate directory.
- Modified tests in `https_phase1_test.go` to align with new directory structure and removed obsolete checks for observability Lua scripts.
- Removed observability assets from `openresty_observability_assets.go` and created a new file `observability_assets.go` in `atsf_agent/internal/nginx` to manage observability Lua scripts.
- Updated documentation to reflect changes in configuration paths for certificates and Lua scripts.
- Ensured that the agent writes to the new `cert_dir` and `lua_dir` instead of the old `support_dir`.
- Introduced `ObservabilityBufferStore` to manage buffered observability records.
- Implemented methods for upserting, replaying, and acknowledging records in the buffer.
- Enhanced `AgentNodePayload` and `NodePayload` to include buffered observability data.
- Updated tests to cover new functionality for observability buffering.
- Modified existing services to persist and handle buffered observability data during heartbeats.
- Added configuration options for observability buffer path and replay minutes.
- Updated documentation to reflect new observability features and configurations.