Fix symlink creation issues and add installation verification checks for the installer scripts

install-borg-cli.sh

@@ -425,6 +425,15 @@ install_borg_from_binary() {
     # Install the binary with version suffix
     $install_cmd "$TEMP_DIR/$binary_name" "$TARGET_DIR/borg-$version"
 
+    # Verify installation
+    if [[ ! -f "$TARGET_DIR/borg-$version" ]]; then
+        print_error "Failed to install Borg CLI binary"
+        return 1
+    fi
+
+    # Remove any existing borg symlink or file to avoid conflicts
+    rm -f "$TARGET_DIR/borg"
+
     # Create/update symlink to point to this version
     $symlink_cmd "$TARGET_DIR/borg-$version" "$TARGET_DIR/borg"
 

install-git-credential-manager.sh

@@ -341,9 +341,16 @@ install_from_tarball() {
         cd "$extracted_dir"
         print_status "Installing binary to $INSTALL_DIR..."
         sudo install -m 755 git-credential-manager "$INSTALL_DIR/git-credential-manager"
+
+        # Verify installation
+        if [[ ! -f "$INSTALL_DIR/git-credential-manager" ]]; then
+            print_error "Failed to install Git Credential Manager binary"
+            return 1
+        fi
+
         sudo ln -sf "$INSTALL_DIR/git-credential-manager" "$INSTALL_DIR/git-credential-manager-core"
     fi
-    
+
     print_success "Binary installed successfully"
 }
 

install-tea-cli.sh

@@ -409,6 +409,15 @@ install_tea_from_binary() {
     # Install the binary with version suffix
     $install_cmd "$TEMP_DIR/$binary_name" "$TARGET_DIR/tea-$version"
 
+    # Verify installation
+    if [[ ! -f "$TARGET_DIR/tea-$version" ]]; then
+        print_error "Failed to install Tea CLI binary"
+        return 1
+    fi
+
+    # Remove any existing tea symlink or file to avoid conflicts
+    rm -f "$TARGET_DIR/tea"
+
     # Create/update symlink to point to this version
     $symlink_cmd "$TARGET_DIR/tea-$version" "$TARGET_DIR/tea"