UX: Accept both numbers and names for target selection

Added resolve_target_input() helper function that allows users to select
targets by either:
- Number from the displayed list (e.g., "1")
- Full target name (e.g., "default")

CHANGES:
- New resolve_target_input() function (lines 107-124)
  - Detects if input is numeric with regex ^[0-9]+$
  - Uses sed to extract Nth line from list_targets output
  - Falls back to treating input as literal target name

- Updated all target selection points:
  - edit_target() - option 3
  - delete_target() - option 4
  - Menu option 5 (run backup)
  - Menu option 6 (view details)

- Changed prompts to clarify:
  - "Enter target number or name" (was "Enter target name")
  - Better error messages for invalid numbers

USER EXPERIENCE:
Before: User had to remember and type exact target name
After: User can simply type "1" from the numbered list

This addresses the user confusion where they entered "1" expecting
it to work like a numbered menu, but got "Target '1' does not exist"

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

CHANGELOG.md

@@ -119,6 +119,15 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - Manual backups always include block device even on non-Sunday
 - Script version bumped to 1.1.0 for multi-target support
 
+### Changed
+- **Target selection now accepts both numbers and names**
+  - All target selection prompts now accept either:
+    - Target number from the displayed list (e.g., "1")
+    - Full target name (e.g., "default")
+  - Applies to: Edit, Delete, Run backup, View details
+  - Improves user experience - no need to remember target names
+  - More intuitive for users familiar with numbered menus
+
 ### Fixed
 - **Main menu now loops properly after actions**
   - Removed `exit 0` calls from all menu options except Exit

pbs-client-installer.sh

@@ -104,6 +104,25 @@ get_target_config_path() {
     echo "$TARGETS_DIR/$name.conf"
 }
 
+# Convert user input (number or name) to target name
+resolve_target_input() {
+    local input="$1"
+
+    # If input is a number, get the Nth target
+    if [[ "$input" =~ ^[0-9]+$ ]]; then
+        local target_name=$(list_targets | sed -n "${input}p")
+        if [ -n "$target_name" ]; then
+            echo "$target_name"
+            return 0
+        fi
+        return 1
+    fi
+
+    # Otherwise treat as target name
+    echo "$input"
+    return 0
+}
+
 migrate_legacy_config() {
     # Check if old single-target config exists
     if [ -f "$CONFIG_DIR/config" ] && [ ! -d "$TARGETS_DIR" ]; then
@@ -230,7 +249,18 @@ edit_target() {
     list_targets | nl
     echo
 
-    TARGET_NAME=$(prompt "Enter target name to edit" "")
+    USER_INPUT=$(prompt "Enter target number or name" "")
+
+    if [ -z "$USER_INPUT" ]; then
+        error "No target specified"
+        return 1
+    fi
+
+    TARGET_NAME=$(resolve_target_input "$USER_INPUT")
+    if [ -z "$TARGET_NAME" ]; then
+        error "Invalid target number: $USER_INPUT"
+        return 1
+    fi
 
     if ! validate_target_name "$TARGET_NAME"; then
         return 1
@@ -283,7 +313,18 @@ delete_target() {
     list_targets | nl
     echo
 
-    TARGET_NAME=$(prompt "Enter target name to delete" "")
+    USER_INPUT=$(prompt "Enter target number or name to delete" "")
+
+    if [ -z "$USER_INPUT" ]; then
+        error "No target specified"
+        return 1
+    fi
+
+    TARGET_NAME=$(resolve_target_input "$USER_INPUT")
+    if [ -z "$TARGET_NAME" ]; then
+        error "Invalid target number: $USER_INPUT"
+        return 1
+    fi
 
     if ! validate_target_name "$TARGET_NAME"; then
         return 1
@@ -1961,7 +2002,18 @@ main() {
                         echo "Available targets:"
                         list_targets | nl
                         echo
-                        TARGET_NAME=$(prompt "Enter target name to backup" "")
+                        USER_INPUT=$(prompt "Enter target number or name to backup" "")
+
+                        if [ -z "$USER_INPUT" ]; then
+                            error "No target specified"
+                            continue
+                        fi
+
+                        TARGET_NAME=$(resolve_target_input "$USER_INPUT")
+                        if [ -z "$TARGET_NAME" ]; then
+                            error "Invalid target number: $USER_INPUT"
+                            continue
+                        fi
 
                         if ! validate_target_name "$TARGET_NAME"; then
                             continue
@@ -1979,7 +2031,18 @@ main() {
                         echo "Available targets:"
                         list_targets | nl
                         echo
-                        TARGET_NAME=$(prompt "Enter target name to view" "")
+                        USER_INPUT=$(prompt "Enter target number or name to view" "")
+
+                        if [ -z "$USER_INPUT" ]; then
+                            error "No target specified"
+                            continue
+                        fi
+
+                        TARGET_NAME=$(resolve_target_input "$USER_INPUT")
+                        if [ -z "$TARGET_NAME" ]; then
+                            error "Invalid target number: $USER_INPUT"
+                            continue
+                        fi
 
                         if validate_target_name "$TARGET_NAME"; then
                             show_target_detail "$TARGET_NAME"