Skip session resume prompt when --new-session flag is passed

When users explicitly pass --new-session, they want a fresh session.
Previously g3 would still prompt to resume an existing session.
Now the resume check is skipped entirely when the flag is set.

crates/g3-cli/src/accumulative.rs

@@ -299,6 +299,7 @@ async fn handle_command(
                 cli.show_code,
                 chat_combined_content,
                 workspace_dir,
+                cli.new_session,
             )
             .await?;
 

crates/g3-cli/src/interactive.rs

@@ -22,10 +22,12 @@ pub async fn run_interactive<W: UiWriter>(
     show_code: bool,
     combined_content: Option<String>,
     workspace_path: &Path,
+    new_session: bool,
 ) -> Result<()> {
     let output = SimpleOutput::new();
 
-    // Check for session continuation
+    // Check for session continuation (skip if --new-session was passed)
+    if !new_session {
       if let Ok(Some(continuation)) = g3_core::load_continuation() {
         output.print("");
         output.print(&format!(
@@ -63,6 +65,7 @@ pub async fn run_interactive<W: UiWriter>(
         }
         output.print("");
       }
+    }
 
     output.print("");
     output.print("g3 programming agent");

crates/g3-cli/src/lib.rs

@@ -197,6 +197,7 @@ async fn run_console_mode(
             cli.show_code,
             combined_content,
             project.workspace(),
+            cli.new_session,
         )
         .await
     }