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/hono.txt

@@ -0,0 +1,21 @@
+{"ok":true,"runtime":"deno 2.9.7","ts":"6.0.3"}
+{"url":"http://localhost:5199/api/v1/redact?token=[REDACTED]","apiKey":"[REDACTED]"}
+HTTP/1.1 200 OK
+cache-control: no-cache
+connection: keep-alive
+content-type: text/event-stream
+transfer-encoding: chunked
+date: Sun, 27 Sep 2026 10:03:06 GMT
+
+event: tick
+data: {"i":6}
+id: 6
+
+event: tick
+data: {"i":7}
+id: 7
+
+event: tick
+data: {"i":8}
+id: 8
+