feat(server): 扫描报告存储(scan_reports)+诊断阈值配置(diagnosis_config)+admin 编辑

- scan_reports 表+dao+3个报告接口(POST/latest/:id,requireUser)
- GET /treatment/diagnosis-config 下发实时阈值(免发版调参)
- admin SettingsView 加 diagnosis_config JSON 编辑器
- 注意: schema.sql 变更需手动 TencentDB 迁移

server/sql/schema.sql

@@ -84,6 +84,24 @@ CREATE TABLE IF NOT EXISTS treatment_records (
   CONSTRAINT fk_treatment_user FOREIGN KEY (user_id) REFERENCES users (user_id)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
 
+CREATE TABLE IF NOT EXISTS scan_reports (
+  id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
+  user_id BIGINT UNSIGNED NOT NULL,
+  device_id VARCHAR(32) NULL,
+  scanned_at DATETIME NULL,
+  regions JSON NULL COMMENT 'array of per-region analysis',
+  overall JSON NULL COMMENT 'array of overall tendencies',
+  recommend_mask INT NOT NULL DEFAULT 0 COMMENT 'bitmask of regions recommended for care',
+  recommend_plan JSON NULL COMMENT 'array of {wavelength, mask, label_key}',
+  raw_pd JSON NULL COMMENT 'raw PD samples for the calibration dataset (may be partial)',
+  calibrated TINYINT NOT NULL DEFAULT 0 COMMENT 'whether thresholds were calibrated',
+  created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  PRIMARY KEY (id),
+  KEY idx_scan_reports_user_created (user_id, created_at),
+  KEY idx_scan_reports_device_created (device_id, created_at),
+  CONSTRAINT fk_scan_reports_user FOREIGN KEY (user_id) REFERENCES users (user_id)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;
+
 CREATE TABLE IF NOT EXISTS device_events (
   event_id BIGINT UNSIGNED NOT NULL AUTO_INCREMENT,
   device_id VARCHAR(32) NOT NULL,
@@ -185,4 +203,5 @@ INSERT IGNORE INTO system_settings (setting_key, setting_value) VALUES
 ('enable_register', 'true'),
 ('enable_binding', 'true'),
 ('enable_free_mode', 'true'),
-('maintenance_mode', 'false');
+('maintenance_mode', 'false'),
+('diagnosis_config', '{"calibrated": false, "note": "占位阈值，待真机标定后调整", "levels": {"low": 0.15, "mid": 0.35, "high": 0.55}, "problem_wavelength": {"aging": 2, "acne": 3, "pigment": 4, "deep": 1}}');