Drop-in ingestion compatibility endpoints

[mostafa]

Summary

Optional compatibility ingest endpoints mimicking other agents' HTTP shapes, deprioritized in favor of OTLP-first ingestion.

Motivation

Some migrations want literal endpoint drop-in. OTLP already covers the strategic ingest path, so this remains a nicety for stubborn legacy shippers.

Proposed approach

• Identify high-value compatibility shapes.
• Implement behind clear feature/docs warnings.
• Prefer documenting OTLP migration instead when sufficient.

Out of scope

• Becoming a general log collector.
• Replacing OTLP as the recommended ingest.

Tasks

• Enumerate candidate endpoints
• Implement only if demand resurfaces
• Docs with migration notes

References

• OTLP ingest adapters
• Daemon HTTP router