From 1166a3357308d58651c73541f52db39d94b5fba3 Mon Sep 17 00:00:00 2001
From: hyperpolymath <6759885+hyperpolymath@users.noreply.github.com>
Date: Wed, 24 Jun 2026 15:11:10 +0100
Subject: [PATCH] fix(ci): clear three CI-hygiene drift failures

- main.rs: drop unused SimulationResults import (errored under -D warnings)
- ci-cd.yml: align Julia matrix + JULIA_VERSION to 1.12 (Manifest.toml is
  pinned to 1.12.x; CI was running 1.9/1.10 and failing on Statistics)
- ci-cd.yml: remove bogus Pkg.add("Lint") / 'Run Julia Lint' step
  (Lint is not a registered package)

Verified: cargo build (incl. -D warnings) clean in src/rust/.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---
 .github/workflows/ci-cd.yml | 12 +++---------
 src/rust/src/main.rs        |  2 +-
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/.github/workflows/ci-cd.yml b/.github/workflows/ci-cd.yml
index 3fbb254..dfe9477 100644
--- a/.github/workflows/ci-cd.yml
+++ b/.github/workflows/ci-cd.yml
@@ -14,7 +14,7 @@ permissions:
   contents: read
 
 env:
-  JULIA_VERSION: '1.10'
+  JULIA_VERSION: '1.12'
   RUST_VERSION: 'stable'
   REGISTRY: ghcr.io
   IMAGE_NAME: ${{ github.repository }}
@@ -41,7 +41,7 @@ jobs:
         run: |
           cd src/julia/RobotVacuum
           julia --project=. -e 'using Pkg; Pkg.instantiate()'
-          julia --project=. -e 'using Pkg; Pkg.add("JuliaFormatter"); Pkg.add("Lint")'
+          julia --project=. -e 'using Pkg; Pkg.add("JuliaFormatter")'
 
       - name: Run JuliaFormatter (code formatting)
         run: |
@@ -49,12 +49,6 @@ jobs:
           julia --project=. -e 'using JuliaFormatter; exit(format("src"; overwrite=false) ? 0 : 1)'
         continue-on-error: true
 
-      - name: Run Julia Lint
-        run: |
-          cd src/julia/RobotVacuum
-          julia --project=. -e 'using Pkg; Pkg.add("Lint"); using Lint; lintpkg("RobotVacuum")'
-        continue-on-error: true
-
   # Security scanning
   security:
     name: Security Scanning
@@ -122,7 +116,7 @@ jobs:
       contents: read
     strategy:
       matrix:
-        julia-version: ['1.9', '1.10', 'nightly']
+        julia-version: ['1.12', 'nightly']
     steps:
       - name: Checkout code
         uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
diff --git a/src/rust/src/main.rs b/src/rust/src/main.rs
index c3d25e5..0a217c0 100644
--- a/src/rust/src/main.rs
+++ b/src/rust/src/main.rs
@@ -4,7 +4,7 @@
 use clap::Parser;
 use env_logger::Env;
 use robot_vacuum_cleaner::{Robot, Environment, Simulator, Position};
-use robot_vacuum_cleaner::simulator::{SimulationConfig, SimulationResults};
+use robot_vacuum_cleaner::simulator::SimulationConfig;
 
 /// Robot Vacuum Cleaner Simulator
 #[derive(Parser, Debug)]