feat(ift): EventHub AI Router stack for Zed

FastAPI gateway with A/B/C lane orchestration, LiteLLM proxy config, Swarm stack (postgres, redis, VPN off-by-default), deploy/smoke/audit scripts.
2026-08-07 22:06:41 +03:00
commit 83d516afa1
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+default_quality_mode: auto
+
+start_lanes:
+  SIMPLE: A
+  MEDIUM_OPS: A
+  MEDIUM_CODE: A
+  COMPLEX: B
+  REASONING: B
+  VISION_OCR: A
+  VISION_UI: A
+
+quality_mode_map:
+  economy: A
+  balanced: B
+  max: C
+
+lane_order: [A, B, C]
+
+budget_caps:
+  warn_pct: 80
+  hard_pct: 95
+  warn_max_lane: B
+  hard_max_lane: A
+
+escalation:
+  repeat_prompt_window_sec: 300
+  context_tokens_min_lane_b: 32000
+  session_ttl_sec: 1800
+
+redis:
+  key_prefix: "ai-router:session:"
+  ttl_sec: 1800