Add multi-database data layer

Introduce aether-data-schema and driver-specific schema generation for Postgres, MySQL, and SQLite.

Split data backends, lifecycle, repositories, and gateway runtime integration across database drivers.

Verified with cargo fmt --all --check, cargo clippy --workspace --all-targets -- -D warnings, and cargo test --workspace.
This commit is contained in:
fawney19
2026-05-05 18:27:36 +08:00
parent 099653f732
commit fce7e959e5
372 changed files with 86217 additions and 21160 deletions

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# Generated Schema
This directory is generated by `aether-data-schema` from `../logical/*.toml`.
It is checked in only as an auditable compiler output and drift-detection fixture.
Do not edit files in this directory by hand. Update `../logical/*.toml`, then run:
```bash
bash crates/aether-data/schema/compose_schema.sh generate
```
Runtime migrations are not loaded from this directory. The executable SQL remains under `crates/aether-data/migrations/{postgres,mysql,sqlite}`, and the Postgres bootstrap snapshot is generated at build time from `crates/aether-data/schema/bootstrap/postgres` into the crate build output until a generated fragment is deliberately promoted into the driver-specific schema manifests.