feat(cli): enhance CLI flexibility and fix option precedence

- Exposed library configuration options (delimiter, case mode, strictness, etc.) as CLI flags in `cli/main.go`.
- Regenerated CLI command implementations using `gosubc` to support the new flags.
- Refactored `strings2` helper functions (`ToCamel`, `ToSnake`, etc.) in `permutations.go` and `types.go` to apply default options before user options, allowing users to override defaults.
- Updated `process` function in `cli/main.go` to pass parsed options to `strings2` functions as variadic arguments.
- Added a section to `README.md` about the CLI mode.
- Added a TODO to `README.md` to support slices for flags when `gosubc` supports it.

Author: google-labs-jules[bot]

README.md

@@ -92,6 +92,10 @@ strings2 snake --screaming "hello world"
 
 Options are composable so multiple behaviours can be applied at once. See the documentation in `types.go` for details on further options.
 
+## TODO
+
+- Support slices for flags when the gosubc version supports it.
+
 ## License
 
 This project is licensed under the BSD 3-Clause License - see the [LICENSE](LICENSE) file for details.

README.md.orig

@@ -81,6 +81,15 @@ fmt.Println(strings2.ToKebabCase(words, strings2.OptionDelimiter("|")))
 fmt.Println(strings2.ToSnakeCase(words, strings2.OptionCaseMode(strings2.CMScreaming)))
 ```
 
+### CLI Mode
+
+The library also provides a command-line interface that exposes all these options, ensuring that the CLI mode has as much flexibility as the code (without being obligated to use smart defaults).
+
+```bash
+# Screaming snake case
+strings2 snake --screaming "hello world"
+```
+
 Options are composable so multiple behaviours can be applied at once. See the documentation in `types.go` for details on further options.
 
 ## License

patch_todo.diff

@@ -0,0 +1,13 @@
+--- README.md
++++ README.md
+@@ -58,6 +58,10 @@
+
+ Options are composable so multiple behaviours can be applied at once. See the documentation in `types.go` for details on further options.
+
++## TODO
++
++- Support slices for flags when the gosubc version supports it.
++
+ ## License
+
+ This project is licensed under the BSD 3-Clause License - see the [LICENSE](LICENSE) file for details.