Does Confront and Haven's Bar work together ?

Yes, Confront and Pirate's Haven work together effectively.

Here is the breakdown of how they interact:

1. Confront's Effect: When you play the spell Confront, its effect applies for the rest of the turn: "Units you play this turn enter ready."
2. Pirate's Haven's Trigger: Pirate's Haven (a Gear card) has the ability: "When you ready a friendly unit, give it +1 might this turn."
3. The Synergy: When you play a unit while Confront is active, that unit enters the board in a ready state. Because the unit is entering the board "ready," it satisfies the trigger condition for Pirate's Haven ("When you ready a friendly unit..."). Consequently, the unit will receive the +1 might bonus from the Gear card immediately upon entering play.

Summary of Timing:

• You play Confront.
• You subsequently play a unit.
• Because of Confront, the unit enters the board ready.
• Because the unit entered ready, Pirate's Haven triggers, granting the unit +1 might.

Note: I could not fully verify this ruling against the retrieved rules.