fix(model): recognize symlink aliases as the loaded model during inline loading

[Anai-Guo]

Problem

Fixes #379.

With inline_model_loading: true, a model can be addressed by directory name in the request's model field. If that name is a symlink to the real model directory (the issue's example: a coder symlink pointing at ArtusDev_Qwen_Qwen3-Coder-30B-A3B-Instruct-EXL3), the model is unloaded and reloaded on every request even though it is already loaded.

Cause

The "is this already loaded?" check compares the requested name against container.model_dir.name:

loaded_model_name = container.model_dir.name
if loaded_model_name == model_path.name and container.loaded:
    ...  # already loaded, skip

But the container is created from model_path.resolve() (common/model.py), so model_dir.name is always the real directory name. A symlink alias (coder) never equals the resolved name (ArtusDev_...-EXL3), so the guard fails and the model is reloaded. The same bare-name comparison sits in the inline fast-path guard in endpoints/OAI/utils/common_.py.

Fix

Compare resolved paths instead of bare directory names in both places, so a symlink that points at the currently-loaded model is recognized as the same model. Non-symlink paths resolve to themselves, so existing behavior is unchanged.

• common/model.py — load_model_gen: container.model_dir.resolve() == model_path.resolve()
• endpoints/OAI/utils/common_.py — load_inline_model: resolve the requested model_dir / model_name and compare against the loaded container's resolved dir.

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