feat: add configurable timeout for public database TCP proxy

Adds a per-database 'Proxy Timeout' setting for publicly exposed databases.
The nginx stream proxy_timeout can now be configured in the UI, defaulting
to 3600s (1 hour) instead of nginx's 10min default. Set to 0 for no timeout.

Fixes #7743

resources/views/livewire/project/database/keydb/general.blade.php

@@ -115,6 +115,8 @@
             </div>
             <x-forms.input placeholder="5432" disabled="{{ $isPublic }}" id="publicPort" label="Public Port"
                 canGate="update" :canResource="$database" />
+            <x-forms.input placeholder="3600" disabled="{{ !$isPublic }}" id="publicPortTimeout"
+                label="Proxy Timeout (seconds)" helper="Timeout for the public TCP proxy connection in seconds. Set to 0 for no timeout. Default: 3600 (1 hour)." canGate="update" :canResource="$database" />
         </div>
         <x-forms.textarea
             helper="<a target='_blank' class='underline dark:text-white' href='https://raw.githubusercontent.com/Snapchat/KeyDB/unstable/keydb.conf'>KeyDB Default Configuration</a>"