refactor: share platform file and route helpers

src/server/routes/proxy/logPathMeta.ts

@@ -1,3 +1,5 @@
+import { parseProxyLogMetadata } from '../../../shared/proxyLogMeta.js';
+
 type ComposeProxyLogMessageArgs = {
   clientKind?: string | null;
   sessionId?: string | null;
@@ -16,21 +18,7 @@ export type ParsedProxyLogMessageMeta = {
 };
 
 export function parseProxyLogMessageMeta(rawMessage: string): ParsedProxyLogMessageMeta {
-  const clientMatch = rawMessage.match(/\[client:([^\]]+)\]/i);
-  const sessionMatch = rawMessage.match(/\[session:([^\]]+)\]/i);
-  const downstreamMatch = rawMessage.match(/\[downstream:([^\]]+)\]/i);
-  const upstreamMatch = rawMessage.match(/\[upstream:([^\]]+)\]/i);
-  const messageText = rawMessage.replace(
-    /^\s*(?:\[(?:client|session|downstream|upstream):[^\]]+\]\s*)+/i,
-    '',
-  ).trim();
-  return {
-    clientKind: clientMatch?.[1]?.trim() || null,
-    sessionId: sessionMatch?.[1]?.trim() || null,
-    downstreamPath: downstreamMatch?.[1]?.trim() || null,
-    upstreamPath: upstreamMatch?.[1]?.trim() || null,
-    messageText,
-  };
+  return parseProxyLogMetadata(rawMessage);
 }
 
 export function composeProxyLogMessage({