Add player controls (X/C keys) + generate 38 new assets (195 total)
- Implemented X key for chopping action (handleChoppingAction)
- Implemented C key for mining action (handleMiningAction)
- Added silver arrows to inventory (10x)
- Generated 38 new PNG assets:
* Trees: pine, oak, maple
* Crops: carrot, tomato, pumpkin, pepper, cabbage
* Buildings: silo, composter
* Environment: rock, bush, daisy, log, pond, stump, berries
* Tools: iron sword, scythe, fishing rod, shovel, boots, stone, wood
* Food/Items: cheese, milk, egg, fertilizer, hay bale
* Lighting: torch, lantern
* Animals: hedgehog, horse, sheep, pig, bat, owl