fix: fix opik trace id exception

CONTRIBUTING.md

@@ -201,6 +201,7 @@ PlanProof values correctness over persuasion.
 - [x] PR 3.2: Validation Wiring
 - [X] PR 3.3: 1-Shot Repair Loop
 - [X] PR 4.1: Opik Trace Scaffolding
+- [ ] PR 4.1.2 — Correct Opik Context Retrieval
 - [ ] PR 4.2: Opik Metrics Integration
 
 ## Infrastructure

apps/api/src/planproof_api/routes.py

@@ -22,7 +22,8 @@
     PlanValidation,
     ValidationMetrics,
 )
-from planproof_api.observability.opik import opik, opik_context
+from opik import opik_context
+from planproof_api.observability.opik import opik
 
 router = APIRouter()
 
@@ -228,7 +229,12 @@ def create_plan(request: PlanRequest) -> PlanResponse:
                 ),
                 errors=[str(exc)],
             )
-    print(f"DEBUG: Trace ID: {opik.get_current_trace_id() or 'No Trace'}")
+    trace_id = "No Trace"
+    try:
+        trace_id = opik_context.get_current_trace_id() or "No Trace"
+    except Exception:
+        pass
+    print(f"DEBUG: Opik Trace ID: {trace_id}")
 
     return PlanResponse(
         plan=plan,

docs/assistant_prompts/codex_tasks.md

@@ -54,6 +54,7 @@ The implementation must conform to:
 ## Phase 4 — Observability
 
 - [X] **PR 4.1:** Integrate Opik tracing hooks for each step (Extract -> Plan -> Validate -> Repair).
+- [ ] **PR 4.1.2** — Correct Opik Context Retrieval
 - [ ] **PR 4.2:** Ensure `validation.metrics` are logged as properties in the Opik trace.
 
 ---