chore: drop leftover Lens references and test the Helm warning

- remove trace_encode_error from the native type stub
- drop the deleted tests/unit/tracing path from the unit CI shard
- point the url-state skill at the remaining route module
- delete the unused OTLP test helpers
- test that NOTES.txt warns about obsolete lens values and stays quiet without them

.github/workflows/test-unit.yml

@@ -506,7 +506,6 @@ jobs:
               tests/unit/secret_managers
               tests/unit/skills/test_skills_main.py
               tests/unit/telemetry tests/unit/proxy/telemetry
-              tests/unit/tracing
             python-version: "3.12"
             workers: 4
             reruns: 0

helm/litellm-helm/tests/removed_lens_values_tests.yaml

@@ -0,0 +1,14 @@
+suite: removed lens values
+templates:
+  - NOTES.txt
+tests:
+  - it: warns that lens values are ignored
+    set:
+      lensWorker.enabled: true
+    asserts:
+      - matchRegexRaw:
+          pattern: lens and lensWorker values are ignored
+  - it: stays quiet without lens values
+    asserts:
+      - notMatchRegexRaw:
+          pattern: lensWorker

helm/litellm/tests/removed_lens_values_tests.yaml

@@ -0,0 +1,17 @@
+suite: removed lens values
+templates:
+  - NOTES.txt
+values:
+  - ./values/required.yaml
+tests:
+  - it: warns that lens values are ignored
+    set:
+      lens.enabled: true
+      lens.url: http://lens.lens.svc:4318
+    asserts:
+      - matchRegexRaw:
+          pattern: lens and lensWorker values are ignored
+  - it: stays quiet without lens values
+    asserts:
+      - notMatchRegexRaw:
+          pattern: lensWorker

litellm/rust_bridge/_native.pyi

@@ -19,7 +19,6 @@ class ForkedAfterNativeRuntimeStarted(RuntimeError): ...
 class ProcessReservedForForking(RuntimeError): ...
 class NativeRedisStoreError(Exception): ...
 
-def trace_encode_error(message: str) -> bytes: ...
 def bundled_model_cost_map() -> bytes: ...
 def native_redis_breaker_states() -> list[str]: ...
 
@@ -739,7 +738,6 @@ __all__ = [
     "process_state_started",
     "reserve_process_for_forking",
     "responses",
-    "trace_encode_error",
     "transcription",
 ]
 

tests/unit/proxy/common_utils/test_http_parsing_utils.py

@@ -1587,14 +1587,6 @@ async def test_read_request_body_unexpected_error():
     assert result == {}
 
 
-async def _never_receive() -> Message:
-    raise AssertionError("the OTLP route check never reads the body")
-
-
-async def _never_send(message: Message) -> None:
-    raise AssertionError("the OTLP route check never sends")
-
-
 @pytest.mark.asyncio
 async def test_form_data_metadata_with_lone_surrogate_escape_is_rejected_like_a_json_body():
     """``json.loads`` accepts ``"\\ud800"`` and yields a lone surrogate that no

ui/litellm-dashboard/.agents/skills/url-state/SKILL.md

@@ -15,7 +15,7 @@ Clear a param with `setter(null)`; nuqs keeps unrelated params and the hash. Upd
 
 Raw reads are fine for one-time reads that never re-render on URL changes: OAuth callback pages, login, the legacy `?page=` redirect, and `networking.tsx`
 
-Reuse the existing helpers before adding a hook: `useUrlTab` in `src/hooks/useUrlTab.ts`, `useUrlTableState` in `src/components/shared/DataTable`, and the route modules `src/components/lens/route.ts` and `src/components/logs/request/logDetailRouting.ts`
+Reuse the existing helpers before adding a hook: `useUrlTab` in `src/hooks/useUrlTab.ts`, `useUrlTableState` in `src/components/shared/DataTable`, and the route module `src/components/logs/request/logDetailRouting.ts`
 
 In tests, render with `renderWithProviders` from `tests/test-utils.tsx`, passing `searchParams` for the initial URL and `onUrlUpdate` to assert writes. When a test asserts `window.location` directly, wrap the render in `NuqsAdapter` from `nuqs/adapters/react`; writes flush asynchronously, so assert them inside `waitFor`. For inputs bound to URL state, set values with one `fireEvent.change` rather than `user.type`, which flakes when a re-render between keystrokes moves focus