feat: add public getters to BaselinePoolState and BaselineLiquidity

Adds accessor methods needed by downstream consumers (cefi) to
decompose pool state for ring buffer transport:

- BaselinePoolState::liquidity() -> &BaselineLiquidity
- BaselineLiquidity::tick_spacing(), start_tick(), start_sqrt_price(), start_liquidity()

Co-Authored-By: Frankenstein <[email protected]>

Author: Will-Smith11

crates/uni-v4-structure/src/lib.rs

@@ -338,6 +338,8 @@ impl<T: V4Network> BaselinePoolState<T> {
         .swap()
     }
 
+    pub fn liquidity(&self) -> &BaselineLiquidity { &self.liquidity }
+
     pub fn get_baseline_liquidity(&self) -> &BaselineLiquidity {
         &self.liquidity
     }

crates/uni-v4-structure/src/liquidity_base.rs

@@ -329,6 +329,14 @@ impl BaselineLiquidity {
     pub fn get_tick_spacing(&self) -> i32 {
         self.tick_spacing
     }
+
+    pub fn tick_spacing(&self) -> i32 { self.tick_spacing }
+
+    pub fn start_tick(&self) -> i32 { self.start_tick }
+
+    pub fn start_sqrt_price(&self) -> SqrtPriceX96 { self.start_sqrt_price }
+
+    pub fn start_liquidity(&self) -> u128 { self.start_liquidity }
 }
 
 /// represents the liquidity at a specified point. All operations use this