style: inline format args and enable uninlined_format_args lint

- Inline all positional format args to capture syntax (e.g. format!("{raw}"))
- Add [lints.clippy] uninlined_format_args = "deny" to Cargo.toml
- Fix format calls in identity.rs, pipeline.rs, report.rs, and common/identity.rs
- Update assert! messages to use inline format syntax

Fixes M-RE-1: All format args now inlined; clippy --all-targets passes cleanly

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>