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/ow-kill9.txt

@@ -0,0 +1,19 @@
+run=1fdbe2ec-6952-4958-bcbb-50903dbdfbe1
+{"workflowRunIds":["1fdbe2ec-6952-4958-bcbb-50903dbdfbe1"]}
+kill -9 worker A pid=968976
+1fdbe2ec submit-download  A      version=v1
+1fdbe2ec copy-file        A      start
+after 12x3s: {"status":"completed","version":"v1","attempts":4,"error":null,"output":{"sub":{"torrentHash":"hash-d2"},"copied":{"dest":"/lib/d2.mkv"},"signal":{"ok":true}}}
+submit-download    function     completed 
+wait-download      signal-wait  completed 
+copy-file          function     running 
+copy-file          function     completed 
+register           function     completed 
+retention          sleep        completed 
+cleanup            function     completed 
+1fdbe2ec submit-download  A      version=v1
+1fdbe2ec copy-file        A      start
+1fdbe2ec copy-file        B      start
+1fdbe2ec copy-file        B      end
+1fdbe2ec register         B      version=v1
+1fdbe2ec cleanup          B