Constant ARK_JSON 

pub const ARK_JSON: &str = "{\n\t\"extractedAt\": \"2026-10-19\",\n\t\"source\": \"https://ark.volcengine.com/region:cn-beijing/docs/agent-plan-personal-plan-overview.md\",\n\t\"currency\": \"CNY\",\n\t\"afpYuan\": 0.002,\n\t\"windows\": {\n\t\t\"fiveHour\": 0.1,\n\t\t\"daily\": 0.5,\n\t\t\"weekly\": 0.35,\n\t\t\"monthly\": 1\n\t},\n\t\"plans\": [\n\t\t{\n\t\t\t\"id\": \"small\",\n\t\t\t\"label\": \"Small\",\n\t\t\t\"scope\": \"personal\",\n\t\t\t\"rank\": 1,\n\t\t\t\"price\": 40,\n\t\t\t\"listPrice\": 39.9,\n\t\t\t\"afp\": 20000,\n\t\t\t\"promo\": { \"price\": 9.9, \"until\": \"2026-11-08\", \"months\": 2 }\n\t\t},\n\t\t{\n\t\t\t\"id\": \"medium\",\n\t\t\t\"label\": \"Medium\",\n\t\t\t\"scope\": \"personal\",\n\t\t\t\"rank\": 2,\n\t\t\t\"price\": 200,\n\t\t\t\"listPrice\": 199.9,\n\t\t\t\"afp\": 100000,\n\t\t\t\"promo\": { \"price\": 49.9, \"until\": \"2026-11-08\", \"months\": 2 }\n\t\t},\n\t\t{\n\t\t\t\"id\": \"large\",\n\t\t\t\"label\": \"Large\",\n\t\t\t\"scope\": \"personal\",\n\t\t\t\"rank\": 3,\n\t\t\t\"price\": 500,\n\t\t\t\"listPrice\": 500,\n\t\t\t\"afp\": 250000\n\t\t},\n\t\t{\n\t\t\t\"id\": \"max\",\n\t\t\t\"label\": \"Max\",\n\t\t\t\"scope\": \"personal\",\n\t\t\t\"rank\": 4,\n\t\t\t\"price\": 1000,\n\t\t\t\"listPrice\": 1000,\n\t\t\t\"afp\": 500000\n\t\t}\n\t],\n\t\"enterprise\": [\n\t\t{ \"id\": \"enterprise-small\", \"label\": \"Enterprise Small\", \"price\": 120 },\n\t\t{ \"id\": \"enterprise-medium\", \"label\": \"Enterprise Medium\", \"price\": 600 },\n\t\t{ \"id\": \"enterprise-large\", \"label\": \"Enterprise Large\", \"price\": 1500 },\n\t\t{ \"id\": \"enterprise-max\", \"label\": \"Enterprise Max\", \"price\": 3000 }\n\t],\n\t\"models\": [\n\t\t{ \"id\": \"doubao-seed-2.0-mini\", \"name\": \"Doubao Seed 2.0 Mini\", \"kind\": \"text\", \"coef\": 0.25, \"minPlan\": \"small\", \"note\": \"audio input 2.5\" },\n\t\t{ \"id\": \"doubao-seed-2.1-lite\", \"name\": \"Doubao Seed 2.1 Lite\", \"kind\": \"text\", \"coef\": 0.5, \"minPlan\": \"small\" },\n\t\t{ \"id\": \"deepseek-v4-flash\", \"name\": \"DeepSeek V4 Flash\", \"kind\": \"text\", \"coef\": 0.5, \"minPlan\": \"small\" },\n\t\t{ \"id\": \"glm-5.3-flash\", \"name\": \"GLM 5.3 Flash\", \"kind\": \"text\", \"coef\": 0.5, \"minPlan\": \"small\", \"note\": \"image input\" },\n\t\t{ \"id\": \"doubao-seed-2.1-pro\", \"name\": \"Doubao Seed 2.1 Pro\", \"kind\": \"text\", \"coef\": 2.5, \"minPlan\": \"small\" },\n\t\t{ \"id\": \"doubao-seed-evolving\", \"name\": \"Doubao Seed Evolving\", \"kind\": \"text\", \"coef\": 2.5, \"minPlan\": \"small\" },\n\t\t{ \"id\": \"minimax-m3\", \"name\": \"MiniMax M3\", \"kind\": \"text\", \"coef\": 2.5, \"minPlan\": \"small\", \"note\": \"retiring\" },\n\t\t{ \"id\": \"glm-5.3\", \"name\": \"GLM 5.3\", \"kind\": \"text\", \"coef\": 4.5, \"minPlan\": \"small\", \"note\": \"thinking always on\" },\n\t\t{ \"id\": \"kimi-k2.7-code\", \"name\": \"Kimi K2.7 Code\", \"kind\": \"text\", \"coef\": 4.5, \"minPlan\": \"small\", \"note\": \"retiring\" },\n\t\t{ \"id\": \"kimi-k2.8-preview\", \"name\": \"Kimi K2.8 Preview\", \"kind\": \"text\", \"coef\": 8, \"promoCoef\": 4.8, \"promoUntil\": \"2026-12-14\", \"minPlan\": \"small\" },\n\t\t{ \"id\": \"deepseek-v4-pro\", \"name\": \"DeepSeek V4 Pro\", \"kind\": \"text\", \"coef\": 5.5, \"minPlan\": \"small\" },\n\t\t{ \"id\": \"kimi-k3\", \"name\": \"Kimi K3\", \"kind\": \"text\", \"coef\": 10, \"promoCoef\": 5, \"promoUntil\": \"2026-10-25\", \"minPlan\": \"medium\", \"note\": \"thinking always on\" },\n\t\t{ \"id\": \"deepseek-v4.1-flash\", \"name\": \"DeepSeek V4.1 Flash\", \"kind\": \"text\", \"coef\": 2.5, \"promoCoef\": 1.25, \"promoUntil\": \"2026-12-30\", \"minPlan\": \"small\", \"note\": \"native visual understanding\" },\n\t\t{ \"id\": \"doubao-embedding-vision\", \"name\": \"Doubao Embedding Vision\", \"kind\": \"embedding\", \"coef\": 0.5, \"minPlan\": \"small\" },\n\t\t{ \"id\": \"auto-mode\", \"name\": \"Auto mode\", \"kind\": \"text\", \"coef\": 0.5, \"promoCoef\": 0.5, \"promoUntil\": \"2026-11-08\", \"minPlan\": \"small\", \"note\": \"router, not a model\" }\n\t],\n\t\"media\": [\n\t\t{ \"id\": \"doubao-seedream-5-0-pro\", \"name\": \"Seedream 5.0 Pro\", \"kind\": \"image\", \"minPlan\": \"small\", \"unit\": \"images\", \"coef\": 150, \"coefHigh\": 300, \"note\": \"output per image \u{2264}1.5K / >1.5K; input image 1 free, then 10; layer split 75/150\" },\n\t\t{ \"id\": \"doubao-seedance-2.0\", \"name\": \"Seedance 2.0\", \"kind\": \"video\", \"minPlan\": \"large\", \"unit\": \"tokens/10k\", \"coef\": 80, \"coefHigh\": 255, \"note\": \"70\u{2013}255 by resolution and input-video\" },\n\t\t{ \"id\": \"doubao-seedance-2.0-fast\", \"name\": \"Seedance 2.0 Fast\", \"kind\": \"video\", \"minPlan\": \"large\", \"unit\": \"tokens/10k\", \"coef\": 110, \"coefHigh\": 185 },\n\t\t{ \"id\": \"doubao-seedance-2.0-mini\", \"name\": \"Seedance 2.0 Mini\", \"kind\": \"video\", \"minPlan\": \"large\", \"unit\": \"tokens/10k\", \"coef\": 70, \"coefHigh\": 115 },\n\t\t{ \"id\": \"doubao-seedance-2.5\", \"name\": \"Seedance 2.5\", \"kind\": \"video\", \"minPlan\": \"large\", \"unit\": \"tokens/10k\", \"coef\": 210, \"coefHigh\": 385 },\n\t\t{ \"id\": \"doubao-seed-tts-2.0\", \"name\": \"Seed TTS 2.0\", \"kind\": \"voice\", \"minPlan\": \"small\", \"unit\": \"chars/10k\", \"coef\": 1350 },\n\t\t{ \"id\": \"doubao-seed-asr-2.0\", \"name\": \"Seed ASR 2.0\", \"kind\": \"voice\", \"minPlan\": \"small\", \"unit\": \"hours\", \"coef\": 450 }\n\t],\n\t\"harness\": [\n\t\t{ \"id\": \"datasets\", \"name\": \"\u{4e13}\u{4e1a}\u{6570}\u{636e}\u{96c6}\", \"kind\": \"harness\", \"minPlan\": \"small\", \"unit\": \"calls\", \"coef\": 12, \"coefHigh\": 240 },\n\t\t{ \"id\": \"doubao-search\", \"name\": \"\u{8c46}\u{5305}\u{641c}\u{7d22}\", \"kind\": \"harness\", \"minPlan\": \"small\", \"unit\": \"calls\", \"coef\": 5, \"free\": 500 },\n\t\t{ \"id\": \"agent-memory\", \"name\": \"Agent \u{8bb0}\u{5fc6}\", \"kind\": \"harness\", \"minPlan\": \"small\", \"unit\": \"hours\", \"coef\": 5, \"free\": 50 },\n\t\t{ \"id\": \"evolve\", \"name\": \"Agent \u{8fdb}\u{5316}\", \"kind\": \"harness\", \"minPlan\": \"small\", \"unit\": \"tokens/1M\", \"coef\": 250, \"free\": 50 },\n\t\t{ \"id\": \"cua\", \"name\": \"Computer Use Agent\", \"kind\": \"harness\", \"minPlan\": \"medium\", \"unit\": \"CU-hours\", \"coef\": 312.5, \"promoCoef\": 62.5, \"note\": \"docs conflict: plan matrix says Medium+, harness rules say Large/Max\" },\n\t\t{ \"id\": \"ai-native\", \"name\": \"AI Native \u{5e95}\u{5ea7}\", \"kind\": \"harness\", \"minPlan\": \"small\", \"unit\": \"rate \u{d7} quantity\", \"coef\": 250 }\n\t],\n\t\"notes\": {\n\t\t\"formula\": \"AFP = (input + cache_read + output) \u{d7} coef / 10,000 \u{2014} cache-read is billed (measured)\",\n\t\t\"windows\": \"5h starts at the first request of the cycle; week = Monday 00:00; month = the subscription anniversary; day (50%) covers media and Harness only\",\n\t\t\"upgradeOnly\": \"no downgrade; the monthly quota is pro-rated, the 5h/weekly windows reset to the new tier immediately\",\n\t\t\"apiForbidden\": \"the plan base URL is for the listed harnesses only; API calls risk suspension\",\n\t\t\"postpaid\": \"\u{8d85}\u{989d}\u{540e}\u{4ed8}\u{8d39} is opt-in, off by default, needs real-name; unavailable for minimax-m3, glm-5.3, kimi-k3, kimi-k2.8-preview, seedream, seedance, Auto, Agent \u{8fdb}\u{5316}\"\n\t}\n}\n";

The Volcengine ARK Agent Plan catalogue, hand-maintained in core/ark.json from the docs (tiers, AFP quota, coefficients, model gates). Exposed here for the same reason as ZEN_JSON: the arkuse bin includes it from the published crate.