fix: correct run_command exit behavior and improve installation instructions (for Amazon Q) in post-create.sh + fix typos in CONTRIBUTING.md

.devcontainer/post-create.sh

@@ -17,7 +17,7 @@ run_command() {
         echo -e "\033[0;31m[ERROR] Command failed (Exit Code $exit_code): $command_to_run\033[0m" >&2
         echo -e "\033[0;31m$output\033[0m" >&2
         
-        return $exit_code
+        exit $exit_code
     fi
 }
 
@@ -25,7 +25,6 @@ run_command() {
 # It is a drop-in replacement for Node.js, so we can install npm packages through it without issues
 echo "📦 Installing Bun Package Manager..."
 run_command "curl -fsSL https://bun.sh/install | bash"
-run_command "source ~/.bashrc"
 echo "✅ Done"
 
 export BUN_INSTALL="$HOME/.bun"
@@ -61,11 +60,33 @@ echo -e "\n🤖 Installing OpenCode CLI..."
 run_command "bun add --global opencode-ai@latest"
 echo "✅ Done"
 
-echo -e "\n🤖 Installing Amazon Developer Q CLI..."
-run_command "curl --proto '=https' --tlsv1.2 -sSf \"https://desktop-release.q.us-east-1.amazonaws.com/latest/q-x86_64-linux.zip\" -o \"q.zip\""
-run_command "unzip q.zip && rm q.zip"
+
+echo -e "\n🤖 Installing Amazon Q CLI..."
+# 👉🏾 https://docs.aws.amazon.com/amazonq/latest/qdeveloper-ug/command-line-verify-download.html
+
+run_command "curl --proto '=https' --tlsv1.2 -sSf 'https://desktop-release.q.us-east-1.amazonaws.com/latest/q-x86_64-linux.zip' -o 'q.zip'"
+run_command "curl --proto '=https' --tlsv1.2 -sSf 'https://desktop-release.q.us-east-1.amazonaws.com/latest/q-x86_64-linux.zip.sig' -o 'q.zip.sig'"
+cat > amazonq-public-key.asc << 'EOF'
+-----BEGIN PGP PUBLIC KEY BLOCK-----
+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f8yY
+-----END PGP PUBLIC KEY BLOCK-----
+EOF
+run_command "gpg --batch --import amazonq-public-key.asc"
+run_command "gpg --verify q.zip.sig q.zip"
+run_command "unzip -q q.zip"
+run_command "chmod +x ./q/install.sh"
 run_command "./q/install.sh --no-confirm"
-run_command "rm -rf ./q"
+run_command "rm -rf ./q q.zip q.zip.sig amazonq-public-key.asc"
 echo "✅ Done"
 
 # Installing UV (Python package manager)