fix: resolve all fmt and clippy warnings

Main lib (src/):
- Add #[allow(dead_code)] for build_info field (stored to prevent Prometheus unregistration)
- Add #[allow(dead_code)] for first_seen field (reserved for future rate limiting)
- Replace .or_insert_with(RelaySyncNeeds::default) with .or_default()
- Replace manual div_ceil implementations with .div_ceil(100)

Test code (tests/):
- Replace .expect(&format!(...)) with .unwrap_or_else(|_| panic!(...))
- Remove needless borrows in fetch_metrics() calls
- Add #[allow(dead_code)] and #[allow(unused_imports)] to test helpers module

grasp-audit:
- Apply cargo fmt to fix formatting

1 files changed, 2 insertions, 2 deletions

diff --git a/grasp-audit/src/specs/grasp01/mod.rs b/grasp-audit/src/specs/grasp01/mod.rs
index ba27fef..fa05f35 100644
--- a/grasp-audit/src/specs/grasp01/mod.rs
+++ b/grasp-audit/src/specs/grasp01/mod.rs
@@ -29,6 +29,6 @@ pub use nip11_document::Nip11DocumentTests;
 pub use push_authorization::PushAuthorizationTests;
 pub use repository_creation::RepositoryCreationTests;
 pub use spec_requirements::{
-    get_requirement, get_requirements_for_section, get_sections, RequirementLevel,
-    SpecRequirement, GRASP_01_REQUIREMENTS, GRASP_COMMIT_ID,
+    get_requirement, get_requirements_for_section, get_sections, RequirementLevel, SpecRequirement,
+    GRASP_01_REQUIREMENTS, GRASP_COMMIT_ID,
 };