Improves duplicate command prevention (#349)

* Improves duplicate command prevention

Refactors duplicate command prevention by implementing a timeout.

This removes the reliance on `sentToTerminal` and introduces a 3-second timeout after a command is sent to the terminal. This prevents duplicate commands from being executed within a short timeframe, improving the reliability of command execution.

* [Mega-Linter] Apply linters fixes

---------

Co-authored-by: nvuillam <17500430+nvuillam@users.noreply.github.com>

Author: nvuillam

CHANGELOG.md

@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+- Improves duplicate command prevention
+
 ## [6.27.0] 2025-02-10
 
 - New Documentation Workbench LWC to gather in one place all documentation related commands, and allow to easily run them and configure related settings. Commands include:

src/command-runner.ts

@@ -132,8 +132,8 @@ export class CommandRunner {
         this.showDuplicateCommandWarning();
         return null;
       }
-      // For terminal: sentToTerminal is true
-      if (existing.type === "terminal" && existing.sentToTerminal) {
+      // For terminal: command was sent to terminal less than 3 seconds ago (heuristic to avoid false positives)
+      if (existing.type === "terminal") {
         this.showDuplicateCommandWarning();
         return null;
       }
@@ -503,7 +503,10 @@ export class CommandRunner {
     // Mark as sent to terminal (for duplicate prevention)
     this.activeCommands.set(cmd, { type: "terminal", sentToTerminal: true });
     vscode.commands.executeCommand("workbench.action.terminal.scrollToBottom");
-    // Optionally, you could remove from activeCommands after a delay or on user action
+    // Remove from activeCommands after a delay
+    setTimeout(() => {
+      this.activeCommands.delete(cmd);
+    }, 3000);
   }
 
   /**