Update proxer-cli to version 0.3.3 and enhance connection handling

- Bump version of `proxer-cli` in `Cargo.toml` and `Cargo.lock` from 0.3.2 to 0.3.3.
- Refactor connection handling in `src/server/mod.rs` by moving the termination of proxer-cli processes and command-line options parsing to the beginning of the `run` function for improved clarity and flow.

Author: doroved

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "proxer-cli"
-version = "0.3.2"
+version = "0.3.3"
 edition = "2021"
 authors = ["doroved"]
 description = "Proxy TCP traffic on macOS with domain filtering."

Cargo.toml

@@ -42,11 +42,18 @@ pub struct ProxyConfig {
 }
 
 pub async fn run() -> Result<(), Box<dyn std::error::Error>> {
+    // Close all proxer-cli processes
+    terminate_proxer();
+
+    // Parse command-line options
+    let options = Opt::parse();
+
     tracing::info!(
         "Default open connection limit: {:?}",
         rlimit::Resource::NOFILE.get_soft()?
     );
 
+    // Set open connection limit
     let connection_limit = match rlimit::Resource::NOFILE.get() {
         Ok(limit) if limit.0 < 1024 * 10 => {
             tracing::info!("Setting open connection limit to {}", limit.1);
@@ -61,12 +68,6 @@ pub async fn run() -> Result<(), Box<dyn std::error::Error>> {
 
     let _ = rlimit::setrlimit(rlimit::Resource::NOFILE, connection_limit, rlimit::INFINITY);
 
-    // Close all proxer-cli processes
-    terminate_proxer();
-
-    // Parse command-line options
-    let options = Opt::parse();
-
     // Read the config file or use the default one
     let config_path = options.config.unwrap_or_else(|| {
         tracing::info!("Using default config file ~/.proxer-cli/config.json5");