Remove re-export-only shim modules

[jvanbuel]

What

Three modules whose entire body was pub use.

flowrs-config: auth.rs and server.rs

Both re-exported types from flowrs-airflow, and lib.rs then re-exported them again:

flowrs_airflow::AirflowAuth → flowrs_config::auth::AirflowAuth → flowrs_config::AirflowAuth

Nothing in the workspace imports through flowrs_config::auth:: or flowrs_config::server:: — every caller uses the crate-root path. The middle hop was invisible to consumers, so lib.rs now re-exports from flowrs_airflow directly and both files are gone.

auth.rs also exported four types (AstronomerAuth, ComposerAuth, MwaaAuth, MwaaTokenType) that lib.rs never forwarded and nothing imported — reachable only via a path no one used.

The header comment called this "backward compatibility", but these are workspace-internal crates with no external consumers.

flowrs-airflow: managed_services/composer/auth.rs

A one-line private module:

pub use crate::auth::ComposerAuth;

composer/mod.rs now re-exports crate::auth::ComposerAuth directly.

Kept

server.rs also re-exported default_timeout, which lib.rs genuinely uses in three places. Those now import flowrs_airflow::config::default_timeout directly rather than losing the function.

Also

Updates CLAUDE.md, which documented the two deleted flowrs-config files.

Verification

cargo test --workspace --lib --bins (94 passing), cargo clippy --workspace --all-targets --all-features -- -D warnings, and cargo fmt --all --check all clean.

🤖 Generated with Claude Code

https://claude.ai/code/session_0127jzUgqqy8JVX5RydfQxh8

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Review details

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro Plus

Run ID: a332fda4-a002-446f-b703-2f6685fe8f6d

📥 Commits

Reviewing files that changed from the base of the PR and between c16ad73 and 50ccebe.

⛔ Files ignored due to path filters (1)

• CLAUDE.md is excluded by !CLAUDE.md

📒 Files selected for processing (6)

• crates/flowrs-airflow/src/managed_services/composer/auth.rs
• crates/flowrs-airflow/src/managed_services/composer/client.rs
• crates/flowrs-airflow/src/managed_services/composer/mod.rs
• crates/flowrs-config/src/auth.rs
• crates/flowrs-config/src/lib.rs
• crates/flowrs-config/src/server.rs

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch claude/remove-reexport-shims

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