feat: 接入 CoinGlass 清算热力图隔离链路

migrations/000006_coinglass_liq_heatmap.down.sql

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+DROP TABLE IF EXISTS coinglass_liq_heatmap;

migrations/000006_coinglass_liq_heatmap.up.sql

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+CREATE TABLE IF NOT EXISTS coinglass_liq_heatmap (
+  source TEXT NOT NULL,
+  symbol TEXT NOT NULL,
+  interval TEXT NOT NULL,
+
+  timestamp BIGINT NOT NULL,
+
+  price_min NUMERIC(36, 18),
+  price_max NUMERIC(36, 18),
+  raw_grid JSONB NOT NULL,
+
+  created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+  updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+
+  PRIMARY KEY (source, symbol, interval, timestamp)
+);
+
+CREATE INDEX IF NOT EXISTS idx_coinglass_liq_heatmap_symbol_interval_time
+ON coinglass_liq_heatmap(symbol, interval, timestamp DESC);
+
+SELECT create_hypertable('coinglass_liq_heatmap', 'timestamp',
+  chunk_time_interval => 604800000,
+  if_not_exists => TRUE,
+  migrate_data => TRUE);