Add exponential backoff retry to all downstream calls

New controller/retry.js wraps async calls with infinite retries, capped

at 30s with jitter. Applied to: TPB search, TMDB, Emby, Ollama chat,

Transmission RPC, and the status/status interval calls inherit it via

a Proxy around the Transmission client.

Also handles ollama package returning pre-parsed JSON objects.

Signed-off-by: William Mantly <wmantly@gmail.com>

controller/ollama.js

@@ -41,7 +41,10 @@ async function chatJSON(system, user){
 			{ role: 'user', content: user },
 		],
 	});
-	return extractJSON(res.message && res.message.content);
+	// The ollama package may return message.content as a JSON string when format:'json' is used.
+	let content = res.message && res.message.content;
+	if(typeof content === 'string') return extractJSON(content);
+	return content;
 }
 
 module.exports = { client, chatJSON, extractJSON };