feat(optimize): add Phase 2 power profile and system tuning
Add `make optimize-power` (ryzenadj 85W, sysctl, THP, RADV nogttspill) with systemd services for boot/resume persistence. Integrate into `make optimize --all` as Phase 2. Update optimization log with RyzenAdj results (+46% tg at 70W sustained), KV sweep data, and quant shootout. Add Qwen3-Coder-30B and Nemotron-Cascade-2 to model catalog.
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configs/ryzenadj-llm.service
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configs/ryzenadj-llm.service
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[Unit]
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Description=Apply RyzenAdj power limits for LLM inference
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After=multi-user.target
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[Service]
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Type=oneshot
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ExecStart=/usr/local/bin/ryzenadj --stapm-limit=85000 --fast-limit=85000 --slow-limit=85000 --apu-slow-limit=85000
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RemainAfterExit=yes
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# Re-apply after resume from sleep/hibernate (HP firmware resets limits)
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ExecStartPost=/bin/sleep 2
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[Install]
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WantedBy=multi-user.target
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