chore: normalize test-server health governance

source_clean/src/health/health.ts

@@ -0,0 +1,32 @@
+export type HealthStatus = 'ok' | 'degraded' | 'unhealthy';
+
+export interface HealthInputs {
+  dbOk: boolean;
+  redisStatus: string;
+  pansouStatus: string;
+  videoParserStatus: string;
+}
+
+export interface HealthOptions {
+  videoParserRequired?: boolean;
+}
+
+export function computeOverallHealth(
+  { dbOk, redisStatus, pansouStatus, videoParserStatus }: HealthInputs,
+  options: HealthOptions = {},
+): HealthStatus {
+  const videoParserRequired = options.videoParserRequired ?? false;
+
+  if (dbOk && redisStatus === 'connected' && pansouStatus === 'ok') {
+    if (!videoParserRequired || videoParserStatus === 'ok') {
+      return 'ok';
+    }
+    return 'degraded';
+  }
+
+  if (dbOk && redisStatus !== 'unknown' && pansouStatus !== 'unreachable') {
+    return 'degraded';
+  }
+
+  return 'unhealthy';
+}