Enable the live planning test against claude-haiku-4-5

The virtual key now reaches a Haiku-class route, which holds the
tool-call contract llama3.2 could not: a real planning turn returns a
well-formed submit_plan call with an explicit, low-inference plan.

Wires NISSE_LIVE_PLANNER_MODEL through the CI workflow (add the
matching Actions secret to run it there) and records the finding in
.env.example.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

.gitea/workflows/ci.yml

@@ -34,6 +34,7 @@ jobs:
           NISSE_LLM_BASE_URL: ${{ secrets.NISSE_LLM_BASE_URL }}
           NISSE_LLM_TOKEN: ${{ secrets.NISSE_LLM_TOKEN }}
           NISSE_ROLE_EXECUTOR: ${{ secrets.NISSE_ROLE_EXECUTOR }}
+          NISSE_LIVE_PLANNER_MODEL: ${{ secrets.NISSE_LIVE_PLANNER_MODEL }}
           NISSE_MATRIX_HOMESERVER: ${{ secrets.NISSE_MATRIX_HOMESERVER }}
           NISSE_MATRIX_USER_ID: ${{ secrets.NISSE_MATRIX_USER_ID }}
           NISSE_MATRIX_TOKEN: ${{ secrets.NISSE_MATRIX_TOKEN }}