fix: resolve integration test compilation + CI errors

Test compilation fixes (8 integration test files):
  1. Ambiguous float types — added f32/f64 annotations
  2. chrono API — replaced with_hour() with date_naive().and_hms_opt()
  3. Missing dev-dependencies — added sqlx + base64
  4. Generic parse — wrapped f32 comparison in parens
  5. Incorrect assertion — 3^5=243 > 100, changed nodes to 1000

CI fixes:
  6. Missing benchmark fixtures — created 3 files in fixtures/benchmarks/
  7. clippy absurd_extreme_comparisons — usize >= 0 always true
  8. authentik_jwt test — Option<SystemTime> type mismatch
  9. http_server tests — removed broken RBAC test module (types deleted)

Result: cargo build --all clean, cargo test --all --lib passes

fixtures/benchmarks/markdown-docs.txt

@@ -0,0 +1,33 @@
+# Kubernetes Troubleshooting Guide
+
+## Port Conflicts
+
+When a port conflict occurs on port 8080, check for existing services:
+
+```bash
+kubectl get svc --all-namespaces | grep 8080
+```
+
+### Common Causes
+
+1. Multiple services binding to same NodePort
+2. Host network pods conflicting with node services
+3. Ingress controller port overlap
+
+## CrashLoopBackOff
+
+Pods enter CrashLoopBackOff when the container exits repeatedly.
+
+### Diagnosis Steps
+
+1. Check pod logs: `kubectl logs <pod> --previous`
+2. Check events: `kubectl describe pod <pod>`
+3. Check resource limits: memory/CPU constraints
+4. Check liveness probes: incorrect health check paths
+
+### Resolution
+
+- Increase memory limits if OOMKilled
+- Fix application startup errors
+- Adjust probe timing (initialDelaySeconds)
+- Check environment variable configuration