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

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

spikes/deno/logs/node-compat.txt

@@ -0,0 +1,28 @@
+{
+ "parseArgs": {
+  "role": "api"
+ },
+ "statfs": {
+  "bsize": 4096,
+  "bavailGB": 1198
+ },
+ "os": {
+  "cpus": 96,
+  "freememMB": 114164,
+  "loadavg": 3
+ },
+ "memoryUsage": "rss,heapTotal,heapUsed,external,arrayBuffers",
+ "als": "req-1",
+ "crypto": "2d711642 36",
+ "worker": {
+  "echo": "from worker",
+  "pid": 1041177
+ },
+ "childKill": {
+  "code": 0,
+  "sig": null,
+  "out": "ready|got-TERM"
+ },
+ "execPath": "/usr/local/bin/deno"
+}
+process.on(SIGTERM) handler fired