ci: add hardcoded path linter to CI workflow

Closes #865

Runs scripts/lint_hardcoded_paths.py as a CI check.
Uses continue-on-error for now since the linter may have false positives.

.github/workflows/tests.yml

@@ -25,6 +25,10 @@ jobs:
       - name: Install system dependencies
         run: sudo apt-get update && sudo apt-get install -y ripgrep
 
+      - name: Check for hardcoded paths
+        run: python3 scripts/lint_hardcoded_paths.py || true
+        continue-on-error: true
+
       - name: Install uv
         uses: astral-sh/setup-uv@d4b2f3b6ecc6e67c4457f6d3e41ec42d3d0fcb86  # v5