Expert and integration roles on claude-haiku-5-5

claude-haiku-4-5 is being replaced by claude-haiku-5-5 in LiteLLM: the
integration tests' roles and the example config's expert move to it.
Its profile keeps the predecessor's benchmark figures, marked as such
until it's measured. The plan's models-by-role line also gains the
local classifier (M3.2). Results measured on 4.5 stay as they were.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PPQ14L3LikyefCMFBqEbKE

docs/Development-Plan.md

@@ -52,8 +52,8 @@ Only `nisse-dev` has real code; `nisse-core` and `nisse-ops` are placeholders.
 - **Local inference:** llama-swap on an RTX 4090 host (320 W cap). The benchmark
   (PR #55) chose `qwen3.8-27b` for local work.
 - **Models by role today:** driver and helper `claude-opus-5-5`, expert
-  `claude-haiku-4-5`. `qwen3.8-27b` has had no role since the executor's went
-  (M2.8); the driver benchmark measures where it fits.
+  `claude-haiku-5-5`, classifier `qwen3.8-27b` (M3.2); the driver benchmark
+  measures where the local model fits beyond that.
 - **Bring-up** runs on this development VM (`scripts/bringup.sh`), against test
   resources: a test repository, the test Matrix room, a budget-capped LiteLLM key;
   configuration in `/root/nisse-e2e/`.