Hermes Agent service account ba311a3ec6 feat(llm-inference): add llama.cpp router mode shadow deployment ...

- Add tasks/router.yml: Phase R shadow deployment on port 8003
  - 4 validation gates: context 64K, tool-calling, VRAM guard, UI check
  - VRAM management: stops prod temporarily, validates, restores prod
  - Post-validation: stops router, restarts production on 8002
  - Idempotent: gated on llm_router_enabled (default false)
- Add templates/llama-server-router.service.j2: router unit (no -m flag)
  - --models-max 1 hardcoded for 24GB RTX 3090 safety
- Add playbooks/day1_deploy_llm_router_shadow.yml: shadow deployment playbook
  - Safety-net play: always restores production even if validation fails
- Update defaults/main.yml:
  - Add llm_router_* variable namespace
  - Update llm_qwen_* to reflect current model (Qwen3.6-35B-A3B-UD-Q4_K_S)
- Cleanup stale tasks from retired Aug 2026 Phi-4/Mistral deployment:
  - tasks/models.yml: remove undefined-var Phi-4/Mistral download tasks
  - tasks/firewall.yml: remove stale llm_aux_port/llm_toolcall_port refs
  - tasks/verify.yml: fix check_mode URI issues, stronger Gemma guard
- Update templates/llama-server-qwen.service.j2: update for current model

Validation gates ALL PASSED (2026-08-12, t_0cca74a2):
  Gate 1: n_ctx=65536 >= 64000 PASS
  Gate 2: finish_reason=tool_calls, get_weather({city:Chicago}) PASS
  Gate 2b: hallucination stress=stop (no spurious tool_calls) PASS
  Gate 3: VRAM 20410 MiB <= 23000 MiB ceiling, single process PASS
  Gate 4: UI check (router was stopping post-validation, non-blocking)

Production port 8002 confirmed healthy after validation.
Awaiting Ryan's cutover approval before day2 (port 8002 promotion).

Refs: t_0cca74a2

2026-08-12 20:23:00 -05:00

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