docs: be more explicit in AGENTS.md

Otherwise, codex often says "Codex:GPT-5" which is rather unspecific.
"Codex:GPT-5.4" would be better.

On-behalf-of: SAP philipp.schuster@sap.com
Signed-off-by: Philipp Schuster <philipp.schuster@cyberus-technology.de>

AGENTS.md

@@ -68,7 +68,9 @@ reviewable, and compatible with the project's normal engineering constraints.
   specified in `./scripts/gitlint/rules`.
 - For LLM-assisted changes, follow the disclosure guidance in `CONTRIBUTING.md`:
   use the project's `Assisted-by:` trailer when disclosure is needed, and do not
-  add `Co-authored-by` or similar trailers unless that policy changes.
+  add `Co-authored-by` or similar trailers unless that policy changes. Prefer
+  explicit version numbers, such as `Assisted-by: Claude:Opus-4.7`, rather than
+  `Assisted-by: Claude:Opus-4`.
 - Temporary allowances such as `#[allow(unused)]` or ignored tests are only
   acceptable if resolved within the same commit series or paired with a clear
   TODO referencing a ticket. Ask the developer if in doubt.

CONTRIBUTING.md

@@ -41,7 +41,8 @@ Comments should be concise and add additional context or information to the code
 
 Logging should be minimal and high signal. Use `info!` for important normal
 state changes that matter in production; use `warn!` or `error!` only for
-abnormal conditions. Keep `debug!` for focused diagnostics.
+abnormal conditions. Keep `debug!` for focused diagnostics. Please find more
+information in [`docs/logging.md`](docs/logging.md).
 
 [Rust Style]: https://github.com/rust-lang/rust/tree/HEAD/src/doc/style-guide/src