Huaijin f6560d7d02 refactor: decouple search from core (#13338) ...

## Summary
- extract search orchestration from core into the `search_service` crate
- keep the existing low-level `search` crate and directory names
unchanged
- extract usage reporting and audit services into dedicated crates
- replace global async function pointers with narrow publisher traits
- keep compatibility re-exports while updating workspace dependencies
and feature propagation

Companion enterprise PR:
https://github.com/openobserve/o2-enterprise/pull/2229

## Validation
- `cargo check --workspace`
- `cargo check -p search --tests`
- `cargo test -p search_service --lib` (184 passed)
- enterprise non-release build with the paired `o2-enterprise` manifest
- `cargo fmt --all -- --check`
- `git diff --check`

2026-07-22 10:36:09 +00:00

..

src

refactor: decouple search from core (#13338)

2026-07-22 10:36:09 +00:00

Cargo.toml

refactor: decouple search from core (#13338)

2026-07-22 10:36:09 +00:00