fix(tests): resolve 3 skipped model directory tests (Section 3/5)

[yehudit1987]

• Fix incorrect relative path to models directory
• Fix Rust double initialization bug in init_lora_unified_classifier
• Add LoRA models to CI minimal downloads
• Bump model cache version to force fresh download
• Change tests to fail visibly instead of silently skipping

Tests TestAutoDiscoverModels_RealModels, TestAutoInitializeUnifiedClassifier,
and TestUnifiedClassifier_Integration now pass.

Fix Partially issue #573

[netlify]

✅ Deploy Preview for vllm-semantic-router ready!

Name	Link
🔨 Latest commit	608c921
🔍 Latest deploy log	https://app.netlify.com/projects/vllm-semantic-router/deploys/6914dbc44cafb300087e4877
😎 Deploy Preview	https://deploy-preview-632--vllm-semantic-router.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.

---

To edit notification comments on pull requests, go to your Netlify project configuration.

[github-actions]

👥 vLLM Semantic Team Notification

The following members have been identified for the changed files in this PR and have been automatically assigned:

📁 Root Directory

Owners: @rootfs, @Xunzhuo
Files changed:

• .github/workflows/test-and-build.yml

📁 candle-binding

Owners: @rootfs
Files changed:

• candle-binding/src/ffi/init.rs

📁 src

Owners: @rootfs, @Xunzhuo, @wangchen615
Files changed:

• src/semantic-router/pkg/classification/classifier_test.go

📁 tools

Owners: @yuluo-yx, @rootfs, @Xunzhuo
Files changed:

• tools/make/models.mk

---

🎉 Thanks for your contributions!

This comment was automatically generated based on the OWNER files in the repository.

[rootfs]

@yuluo-yx PTAL, thanks