Implement Memory Pool for Buffer Management

[devfire]

🔧 ADDITIONAL IMPROVEMENTS

Description: Create a memory pool for buffers to improve memory efficiency and reduce allocation overhead.

Current Issue

• Frequent buffer allocations and deallocations
• Memory fragmentation
• Allocation overhead for each message

Suggested Implementation

// Create a memory pool for buffers
struct BufferPool {
    buffers: Vec<Vec<u8>>,
    buffer_size: usize,
}

impl BufferPool {
    pub fn get_buffer(&mut self) -> Vec<u8> {
        self.buffers.pop().unwrap_or_else(|| vec![0u8; self.buffer_size])
    }

    pub fn return_buffer(&mut self, mut buffer: Vec<u8>) {
        buffer.clear();
        buffer.resize(self.buffer_size, 0);
        if self.buffers.len() < 10 { // Limit pool size
            self.buffers.push(buffer);
        }
    }
}

Priority: Medium - Performance optimization that would reduce memory pressure and improve throughput under high load.