feat(bot): add option to log a switch when proxying

PluralKit.Core/Database/Functions/MessageContext.cs

@@ -31,5 +31,6 @@ public class MessageContext
     public int? LatchTimeout { get; }
     public bool CaseSensitiveProxyTags { get; }
     public bool ProxyErrorMessageEnabled { get; }
+    public bool ProxySwitch { get; }
     public bool DenyBotUsage { get; }
 }

PluralKit.Core/Database/Functions/functions.sql

@@ -9,6 +9,7 @@
         latch_timeout integer,
         case_sensitive_proxy_tags bool,
         proxy_error_message_enabled bool,
+        proxy_switch bool,
 
         tag_enabled bool,
         proxy_enabled bool,
@@ -40,6 +41,7 @@ as $$
         system_config.latch_timeout                    as latch_timeout,
         system_config.case_sensitive_proxy_tags        as case_sensitive_proxy_tags,
         system_config.proxy_error_message_enabled      as proxy_error_message_enabled,
+        system_config.proxy_switch                     as proxy_switch,
 
         -- system_guild table
         coalesce(system_guild.tag_enabled, true)       as tag_enabled,

PluralKit.Core/Database/Migrations/45.sql

@@ -0,0 +1,6 @@
+-- database version 45
+-- add new config setting "proxy_switch"
+
+alter table system_config add column proxy_switch bool default false;
+
+update info set schema_version = 45;

PluralKit.Core/Database/Utils/DatabaseMigrator.cs

@@ -9,7 +9,7 @@ namespace PluralKit.Core;
 internal class DatabaseMigrator
 {
     private const string RootPath = "PluralKit.Core.Database"; // "resource path" root for SQL files
-    private const int TargetSchemaVersion = 44;
+    private const int TargetSchemaVersion = 45;
     private readonly ILogger _logger;
 
     public DatabaseMigrator(ILogger logger)