feat: complete TASK-WP0-08 logging

apps/api/src/main.ts

@@ -1,7 +1,10 @@
-import { resolve } from "node:path";
+import { join, resolve } from "node:path";
 
 import { createApp } from "./app.js";
 import { readBrowserSupportRelease } from "./browser-support.js";
+import { readConfiguredLocalDataRoot } from "./local-data-root.js";
+import { ManagedStorage } from "./managed-storage.js";
+import { StructuredJsonlLogger } from "./structured-log.js";
 import { attachApiSupervisorControl, initializeApiCredentialClients, receiveApiCredentials } from "./supervisor-channel.js";
 
 const credentialChannelEnabled = process.argv.includes("--dada-credential-stdin");
@@ -21,5 +24,27 @@ const controlPipeIndex = process.argv.indexOf("--dada-control-pipe");
 if (controlPipeIndex >= 0) {
   const controlPipe = process.argv[controlPipeIndex + 1];
   if (!controlPipe) throw new Error("Supervisor control pipe name is required.");
-  attachApiSupervisorControl(controlPipe, () => app.close());
+  let storage: ManagedStorage | undefined;
+  const control = attachApiSupervisorControl(controlPipe, async () => {
+    await app.close();
+    storage?.close();
+  });
+  try {
+    const dataRoot = readConfiguredLocalDataRoot();
+    storage = new ManagedStorage({ dataRoot, databasePath: join(dataRoot, "db", "dada.sqlite3") });
+    const logger = new StructuredJsonlLogger({
+      component: "api",
+      directory: join(dataRoot, "logs", "api"),
+      onWriteFailure: () => {
+        try {
+          storage?.setLogAvailability(false);
+        } finally {
+          control.reportStatus("storage_unavailable");
+        }
+      },
+    });
+    logger.write({ error_category: "none", status_category: "ready" });
+  } catch {
+    control.reportStatus("storage_unavailable");
+  }
 }