v1.1.3 - Gabbro (Pebble Time Round 2) support

Added support for Pebble Time Round 2 (gabbro):

• 260x260 round display with circular clip mask
• Circular bounce physics for pets
• Adaptive layout for egg, spawn, and egg select UI
• Smaller speech bubbles (140x38 2-line, 160x48 3-line)
• Circular progress bar for dead pet removal on round
• Expanded dead pet hitbox (48x48)
• Radius 124 with 16px sprite margin