feat(cli): add --verbose mode (#1994)

closes INT-4790

usage:
```
cargo openvm --verbose keygen
cargo openvm --verbose prove app
```

Author: jonathanpwang

Cargo.lock

@@ -112,8 +112,8 @@ lto = "thin"
 
 [workspace.dependencies]
 # Stark Backend
-openvm-stark-backend = { git = "https://github.com/openvm-org/stark-backend.git", tag = "v1.2.0-rc.1", default-features = false }
-openvm-stark-sdk = { git = "https://github.com/openvm-org/stark-backend.git", tag = "v1.2.0-rc.1", default-features = false }
+openvm-stark-backend = { git = "https://github.com/openvm-org/stark-backend.git", tag = "v1.2.0-rc.2", default-features = false }
+openvm-stark-sdk = { git = "https://github.com/openvm-org/stark-backend.git", tag = "v1.2.0-rc.2", default-features = false }
 
 # OpenVM
 openvm-sdk = { path = "crates/sdk", default-features = false }

Cargo.toml

@@ -12,10 +12,13 @@ pub enum Cargo {
 }
 
 #[derive(clap::Args)]
-#[command(author, about, long_about = None, args_conflicts_with_subcommands = true, version = OPENVM_VERSION_MESSAGE)]
+#[command(author, about, long_about = None, version = OPENVM_VERSION_MESSAGE)]
 pub struct VmCli {
     #[command(subcommand)]
     pub command: VmCliCommands,
+
+    #[arg(long)]
+    pub verbose: bool,
 }
 
 #[derive(Subcommand)]
@@ -36,7 +39,13 @@ pub enum VmCliCommands {
 async fn main() -> Result<()> {
     let Cargo::OpenVm(args) = Cargo::parse();
     let command = args.command;
-    setup_tracing_with_log_level(Level::INFO);
+    let log_level = if args.verbose {
+        Level::INFO
+    } else {
+        Level::WARN
+    };
+    setup_tracing_with_log_level(log_level);
+
     match command {
         VmCliCommands::Build(cmd) => cmd.run(),
         VmCliCommands::Commit(cmd) => cmd.run(),