docs(spikes): Deno 2.9.7 + TS 7 compatibility spike and ADR-004

Co-Authored-By: Claude Fable 5.1 <[email protected]>

spikes/deno/apps/server/src/log-pino.ts

@@ -0,0 +1,32 @@
+// pino 10 on Deno: sync stdout, custom destination, formatters/hooks redaction, child loggers, pino.transport (worker_threads).
+import pino from "pino";
+import { redact, redactString } from "@spike/x";
+import { Writable } from "node:stream";
+
+const opts: pino.LoggerOptions = {
+  level: "info",
+  formatters: { log: (obj) => redact(obj) as Record<string, unknown> },
+  hooks: {
+    logMethod(args, method) {
+      return method.apply(this, args.map((a) => (typeof a === "string" ? redactString(a) : a)) as typeof args);
+    },
+  },
+};
+const lines: string[] = [];
+const dest = new Writable({ write(chunk, _enc, cb) { lines.push(String(chunk)); cb(); } });
+const log = pino(opts, dest);
+log.info({ token: "abc", url: "https://x/rss?passkey=SECRET&a=1", n: 1 }, "fetch https://x?api_key=K");
+log.child({ component: "worker", password: "p" }).warn({ err: new Error("boom token=zzz") }, "child");
+console.log("custom-dest:", lines.join("").trim());
+
+pino(opts).info({ cookie: "c=1" }, "stdout default destination");
+const t = pino.transport({ target: "pino/file", options: { destination: 1 } });
+const lt = pino(opts, t);
+lt.info({ secret: "s" }, "via pino.transport (worker_threads)");
+await new Promise((r) => setTimeout(r, 300));
+t.end();
+if (Deno.env.get("PRETTY")) {
+  const pp = pino({ ...opts, transport: { target: "pino-pretty", options: { translateTime: "SYS:HH:MM:ss" } } });
+  pp.info({ token: "x" }, "via pino-pretty transport");
+  await new Promise((r) => setTimeout(r, 500));
+}