Fix formatting and clippy warnings across workspace

- Run cargo fmt on all crates
- Fix regex patterns using unsupported lookahead in patterns.rs
- Replace unwrap() calls with compile_regex() helper
- Fix never type fallback in GitHub tracker
- Fix redundant field name in findings page
- Allow enum_variant_names for Dioxus Route enum
- Fix &mut Vec -> &mut [T] clippy lint in sbom.rs
- Mark unused-but-intended APIs with #[allow(dead_code)]

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

compliance-agent/src/webhooks/gitlab.rs

@@ -83,7 +83,9 @@ async fn handle_merge_request(
     _agent: Arc<ComplianceAgent>,
     payload: &serde_json::Value,
 ) -> StatusCode {
-    let action = payload["object_attributes"]["action"].as_str().unwrap_or("");
+    let action = payload["object_attributes"]["action"]
+        .as_str()
+        .unwrap_or("");
     if action != "open" && action != "update" {
         return StatusCode::OK;
     }