Augusta’s school district filed a civil suit last week against a conservative activist and internet personality after a brief altercation the district said amounted to assault. In the board’s latest skirmish with right-wing provocateurs, the district alleged Tim Bodnar, known by his online moniker “Truth Slinger,” assaulted a school official at a June 10 board meeting. Bodnar, who has a history of showing up at school board meetings across the s…