I think your team has a Protection against Enemy aura coming from someone which would stop the Charming Gaze, and since the zombie has her pinned, it can just keep her face down against the floor so she can't use it.
Not a ton, but enough. You're quite elite among Delvers now and would qualify for the Royal Guard should someone elect to retire a character. Do keep in mind, other NPCs of your level probably aren't going to be nearly as powerful as you due to all of the extra resources (they'd still follow NPC WBL for example).
Generally, full on resurrecting a Dungeon Denizen would be illegal, though there are permits for animating them in Solum as undead or in some other enthralled fashion. You may be able to get special permission through Atticus. If Puhrjan did get loose and start causing havoc and her appearance was tied to you, then you're spot on: your characters would likely be executed for the treasonous action of aiding the enemy to attack Solum.
Bringing back Puhrjan in town with her own will is potentially a huge risk, especially if it's a clandestine plan. The mob she could potentially gather with her Charming Gaze could cause a lot of problems if she was left to roam free, so you'd need to figure out a way to ensure she couldn't run amok if you decided to raise her without special permission.