Add support self-check diagnostics

src/main/debug-server.ts

@@ -33,6 +33,7 @@ const DEBUG_ENDPOINTS: DebugEndpointDescriptor[] = [
   { method: "GET", path: "/health", description: "Basic health, uptime, and memory information." },
   { method: "GET", path: "/meta", description: "Lists runtime metadata and all available endpoints." },
   { method: "GET", path: "/debug/setup", description: "Checks whether the local debug setup is configured for support." },
+  { method: "GET", path: "/self-check", description: "Extended support self-check with disk space, log sizes, and support bundle estimate." },
   { method: "GET", path: "/host/diagnostics", description: "Returns Windows host crash and dump diagnostics." },
   { method: "GET", path: "/log", queryExample: "lines=100&grep=keyword", description: "Legacy alias for the main application log tail." },
   { method: "GET", path: "/logs/main", queryExample: "lines=100&grep=keyword", description: "Reads the main application log tail." },
@@ -238,7 +239,7 @@ function buildAiManifest(baseDir: string): Record<string, unknown> {
       "Read debug_token.txt and debug_port.txt from this runtime folder.",
       "If remote access is needed, ask the user only for the server IP or DNS name.",
       "Call /meta first to confirm the server is reachable and to re-read the endpoint list.",
-      "Use /debug/setup to quickly verify whether token, host, manifest, and trace files are in a good support state.",
+      "Use /self-check or /debug/setup to quickly verify whether token, host, manifest, trace, disk space, and log sizes are in a good support state.",
       "Use /diagnostics for an overview, then drill into /logs/item, /logs/package, /status, /packages, /items, /settings, /accounts, /stats, /history, or /logs/trace.",
       "If a full handoff is needed, download /support/bundle as a ZIP."
     ],
@@ -274,6 +275,7 @@ function buildAiManifest(baseDir: string): Record<string, unknown> {
       remoteHostHint
     },
     setupCheckEndpoint: "/debug/setup",
+    selfCheckEndpoint: "/self-check",
     askUserFor: [
       "Server IP or DNS name, if remote access is required and not already known."
     ],
@@ -475,7 +477,8 @@ function handleRequest(req: http.IncomingMessage, res: http.ServerResponse): voi
         traceLog: getTraceLogPath()
       },
       supportChecks: {
-        setup: "/debug/setup"
+        setup: "/debug/setup",
+        selfCheck: "/self-check"
       },
       logPaths: {
         main: getLogFilePath(),
@@ -488,7 +491,7 @@ function handleRequest(req: http.IncomingMessage, res: http.ServerResponse): voi
     return;
   }
 
-  if (pathname === "/debug/setup") {
+  if (pathname === "/debug/setup" || pathname === "/self-check") {
     jsonResponse(res, 200, getDebugSetupCheck(runtimeBaseDir));
     return;
   }