Enforce strict two-character option scheme across all wrapper scripts

- Removed long options from input parsing in all bash scripts
- Updated all help texts to show only two-character options
- Fixed error messages to reference short options only
- All scripts now reject long options like --help, --verbose, --target-org
- Maintained internal use of long sf CLI commands (e.g., --target-org passed to sf)
- Updated README.md documentation to reflect two-character scheme only
- Scripts affected: sf-retrieve, sf-test-run, sf-data-import, sf-data-export
- PowerShell scripts already used correct two-character parameter scheme
- All wrapper scripts now have consistent user interface

This ensures strict consistency in the two-character option scheme
while maintaining backward compatibility for the sf CLI commands themselves.

sf-data-export

@@ -185,14 +185,14 @@ query_methods=0
 [[ -n "$SOBJECT" ]] && ((query_methods++))
 
 if [[ $query_methods -eq 0 ]]; then
-    echo -e "${RED}Error: Must specify one of: --query, --file, or --sobject${NC}"
+    echo -e "${RED}Error: Must specify one of: -qy, -fl, or -so${NC}"
     echo ""
     echo -e "${YELLOW}Usage examples:${NC}"
     echo -e "${GRAY}  sf-data-export -qy \"SELECT Id, Name FROM Account\"${NC}"
     echo -e "${GRAY}  sf-data-export -fl queries/accounts.soql${NC}"
     echo -e "${GRAY}  sf-data-export -so Account${NC}"
     echo ""
-    echo -e "${YELLOW}Use --help for detailed usage information.${NC}"
+    echo -e "${YELLOW}Use -hp for detailed usage information.${NC}"
     exit 1
 fi