Update dockerfile and pyproject toml

Dockerfile

@@ -10,11 +10,12 @@ ENV UV_PROJECT_ENVIRONMENT=/app/.venv
 # Prefer CPU wheels for torch/torchvision and increase timeout for large wheels
 ENV UV_EXTRA_INDEX_URL=https://download.pytorch.org/whl/cpu
 ENV UV_HTTP_TIMEOUT=120
+ENV UV_INDEX_STRATEGY=unsafe-best-match
 
 # Install dependencies with uv (uses cache for speed)
 COPY pyproject.toml uv.lock ./
 RUN --mount=type=cache,target=/root/.cache/uv \
-    uv lock --upgrade && \
+    uv lock --upgrade --index-strategy unsafe-best-match && \
     uv sync --no-dev --index-strategy unsafe-best-match
 
 # Copy the rest of the project

pyproject.toml

@@ -3,7 +3,7 @@ name = "model-fast-api"
 version = "0.1.0"
 description = "Add your description here"
 readme = "README.md"
-requires-python = ">=3.12"
+requires-python = ">=3.12,<3.13"
 dependencies = [
     "fastapi>=0.118.0",
     "langchain>=0.3.27",