fix: move litellm uv override to workspace root

pyproject.toml

@@ -167,6 +167,9 @@ override-dependencies = [
     "dynaconf>=3.2.13",
     "pillow>=12.1.1",  # Force Pillow 12.1.1+ to prevent CVE-vulnerable versions
     "playwright>=1.59.0",  # Latest available on PyPI; ensures updated Chromium with CVE fixes
+    # Keep uv workspace resolution on the supported LiteLLM floor without forcing
+    # an upstream package that declares Requires-Python <3.14 onto Python 3.14.
+    "litellm>=1.85.1,<2.0.0; python_version < '3.14'",
     # Transitive dependency CVE fixes
     "lxml>=6.1.0,<7.0.0",  # CVE-2026-41066
     "mako>=1.3.12,<2.0.0",  # CVE-2026-44307

src/backend/base/pyproject.toml

@@ -110,16 +110,6 @@ dependencies = [
     "transformers>=5.6.0,<6.0.0",
 ]
 
-[tool.uv]
-# Workspace-resolution override for litellm, gated to <3.14 to match the
-# litellm/opik/toolguard extras. litellm has no 3.14-compatible release, so an
-# unconditional override would force the resolver to select an uninstallable
-# litellm on 3.14 (pulled transitively by opik/toolguard before they too were
-# gated). Drop the marker once upstream litellm supports 3.14.
-override-dependencies = [
-    "litellm>=1.85.1,<2.0.0; python_version < '3.14'"
-]
-
 [dependency-groups]
 dev = [
     "asgi-lifespan>=2.1.0",

uv.lock

@@ -39,6 +39,7 @@ members = [
 overrides = [
     { name = "dynaconf", specifier = ">=3.2.13" },
     { name = "gunicorn", specifier = ">=25.3.0" },
+    { name = "litellm", marker = "python_full_version < '3.14'", specifier = ">=1.85.1,<2.0.0" },
     { name = "lxml", specifier = ">=6.1.0,<7.0.0" },
     { name = "mako", specifier = ">=1.3.12,<2.0.0" },
     { name = "markdown", specifier = ">=3.8.0" },