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llm-intelligence/db/migrations/013_official_import_signature_audit.sql

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-- 官方导入结构签名审计
CREATE TABLE IF NOT EXISTS official_import_signature_audit (
id BIGSERIAL PRIMARY KEY,
source_key TEXT NOT NULL,
checked_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
status TEXT NOT NULL,
drift_detected BOOLEAN NOT NULL DEFAULT FALSE,
baseline_initialized BOOLEAN NOT NULL DEFAULT FALSE,
source_url TEXT,
fixture_path TEXT,
snapshot_path TEXT,
signature_path TEXT,
baseline_path TEXT,
structure_sha256 TEXT,
previous_structure_sha256 TEXT,
byte_size INTEGER,
signature_payload JSONB,
error_message TEXT,
created_at TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP
);
CREATE INDEX IF NOT EXISTS idx_official_import_signature_audit_source_checked_at
ON official_import_signature_audit(source_key, checked_at DESC);
CREATE INDEX IF NOT EXISTS idx_official_import_signature_audit_status
ON official_import_signature_audit(status);
CREATE INDEX IF NOT EXISTS idx_official_import_signature_audit_structure_sha256
ON official_import_signature_audit(structure_sha256);
COMMENT ON TABLE official_import_signature_audit IS '官方导入结构签名巡检审计表,记录每次 guard 抓取、签名与漂移判定结果';
COMMENT ON COLUMN official_import_signature_audit.signature_payload IS '当前抓取页面的结构签名 JSONB 快照';