High Velocity UX & Strict Engine (Part 2)

Status: Completed

Implement "Manual Mana Engine" allowing players to add mana to their pool via interaction.
Implement "Strict Combat Engine" supporting DECLARE_ATTACKERS and DECLARE_BLOCKERS phases and validation.
Implement "High Velocity UX" with Swipe-to-Tap and Swipe-to-Attack gestures.
Enhance GameView with Mana Pool display and visual feedback for combat declarations.
Contextualize SmartButton to handle complex actions like declaring specific attackers.

Mana System: Added addMana method to RulesEngine and manaPool to PlayerState. Implemented emptyManaPools logic on step transition.
Combat Logic: Implemented declareAttackers (checking summoning sickness, tapping, setting attacking target) and declareBlockers logic.
Action Handling: Updated GameManager to handle ADD_MANA and auto-generate mana when tapping Basic Lands via TAP_CARD action (legacy compatibility wrapper).

Mana Pool UI: Added a compact Mana Pool display in the player life area, showing WUBRGC counts.
Gesture Manager Upgrade: Enhanced GestureManager to detect swipe direction:
- Slash (Horizontal): Tap Card.
- Thrust (Vertical Up): Attack (if in combat step).
- Thrust (Vertical Down): Cancel Attack.
Combat Visuals: Implemented proposedAttackers local state. Cards proposed to attack are visually lifted (translateY(-40px)) and glow red (box-shadow, ring).
Smart Button: Updated to accept contextData. In declare_attackers step, it displays "Attack with N" and sends the list of proposed attackers.

Synced CardInstance (Client) with CardObject (Server) to include attacking and blocking fields.

Verify Multiplayer Sync (Socket events are already in place).
Implement "Blocking" UI (similar to Attacking but for defenders).
Implement "Order Blockers" / "Damage Assignment" if strict compliance is enforced (currently simplified to auto-damage).