- Flush static buffer at end of each conditional branch (if/else/else-if)
to ensure content is rendered inside the correct blocks
- Add helpers_path parameter to zig_codegen.generate() for correct
relative imports in nested directories (e.g., '../helpers.zig')
- Fix build.zig to use correct CLI path (src/tpl_compiler/main.zig)
- Export zig_codegen from root.zig for CLI module usage
Bump version to 0.3.11