fix(admin): persist TAK module config (team color / member role) (#11216)

Setting TAK team/role ACKed and rebooted but stored nothing:
handleSetModuleConfig had no tak case, saveToDisk never set has_tak,
and handleGetModuleConfig had no TAK_CONFIG case. Add all three, plus
a native suite sweeping every ModuleConfig submessage through
set -> save -> load -> get and a TAK value-fidelity suite.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

src/mesh/NodeDB.cpp

@@ -3008,6 +3008,7 @@ bool NodeDB::saveToDiskNoRetry(int saveWhat)
         moduleConfig.has_audio = true;
         moduleConfig.has_paxcounter = true;
         moduleConfig.has_statusmessage = true;
+        moduleConfig.has_tak = true;
 #if !MESHTASTIC_EXCLUDE_BEACON
         moduleConfig.has_mesh_beacon = true;
 #endif