fix: correct argument parsing in create-new-feature.sh script

Fix two critical bugs in the argument parsing logic that caused incorrect
behavior when --short-name parameter was used:

1. **Index offset bug**: The loop started at i=0 and used i < $#, which
   incorrectly processed $0 (script name) as the first argument and
   skipped the last actual parameter. Changed to i=1 and i <= $# to
   properly iterate through actual command-line arguments ($1 to $#).

2. **Boundary condition bug**: The condition `[ $((i + 1)) -ge $# ]`
   incorrectly flagged valid arguments as missing. When --short-name was
   at position $#-1, the next position $# was valid but treated as
   out-of-bounds. Changed to `[ $((i + 1)) -gt $# ]` for correct validation.

3. **Enhanced validation**: Added check to ensure --short-name value is
   not another option (doesn't start with --).

**Before**:
- `script --json "desc" --short-name "test"` → Error: requires a value
- `script --json "desc1" "desc2" --short-name` → Generated wrong branch name

**After**:
- `script --json "desc" --short-name "test"` → Works correctly
- `script --json "desc1" "desc2" --short-name` → Proper error message

This ensures the script correctly supports both parameter orders:
- `[--json] [--short-name <name>] <feature_description>`
- `[--json] <feature_description> [--short-name <name>]`

Author: zidoshare

scripts/bash/create-new-feature.sh

@@ -5,20 +5,26 @@ set -e
 JSON_MODE=false
 SHORT_NAME=""
 ARGS=()
-i=0
-while [ $i -lt $# ]; do
+i=1
+while [ $i -le $# ]; do
     arg="${!i}"
     case "$arg" in
         --json) 
             JSON_MODE=true 
             ;;
         --short-name)
-            if [ $((i + 1)) -ge $# ]; then
+            if [ $((i + 1)) -gt $# ]; then
                 echo 'Error: --short-name requires a value' >&2
                 exit 1
             fi
             i=$((i + 1))
-            SHORT_NAME="${!i}"
+            next_arg="${!i}"
+            # Check if the next argument is another option (starts with --)
+            if [[ "$next_arg" == --* ]]; then
+                echo 'Error: --short-name requires a value' >&2
+                exit 1
+            fi
+            SHORT_NAME="$next_arg"
             ;;
         --help|-h) 
             echo "Usage: $0 [--json] [--short-name <name>] <feature_description>"