feat(llm): rename inference services dropping 'default' from names

frank-default-large -> frank-large (Dankclaw :7770), frank-default-small ->
frank-small (Dankserver :7770), frank-default-sightsound -> frank-npu
(Dankclaw :7771). Units, env files, serve scripts, deploy-plan mappings,
deploy-remote dispatch (stop/disable old units + relink + enable new), and the
test seams move together. Retired frank-default-npu.* artifacts moved to
scripts/.AGENTTRASH/ (tracked-in-history; ignored on disk).

Served aliases become frank-large / frank-small via --alias; the NPU endpoint
serves the whole FLM registry, so its rename changes no served tags.

scripts/bench-threads-batch.sh

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# Threads-batch sweep for frank-default-large on dankclaw
+# Threads-batch sweep for frank-large on dankclaw
 # Benches prefill throughput at 65536 prompt tokens across threads-batch values.
 set -uo pipefail
 
@@ -10,7 +10,7 @@ TB_LIST=(16 32 48 64 80 96 128)
 ENV_FILE="/home/dank/GitPackages/ROCmFPX/build-qwen38/bin"
 
 echo "========================================"
-echo "THREADS-BATCH SWEEP — frank-default-large"
+echo "THREADS-BATCH SWEEP — frank-large"
 echo "Model: $(basename "$MODEL") ($(du -h "$MODEL" | cut -f1))"
 echo "Threads-batch values: ${TB_LIST[*]}"
 echo "Prompt: 65536 tokens, n-gen: 0 (prefill-only)"