refactor(json): model JsonFile encode/write options as a typed struct

Replace the i64 bitmask + encode_with_indent split with a JsonEncodeOptions
struct (Default = JSON_UNESCAPED_SLASHES|JSON_PRETTY_PRINT|JSON_UNESCAPED_UNICODE,
default indent). encode/write each get a default form plus an explicit
encode_with_options/write_with_options variant, mirroring PHP's optional
$options argument. write_with_options always encodes with self.indent, matching
PHP write().

Also reconcile call sites with the PHP sources: most ported sites passed 0 where
Composer omits the argument (= default flags), so JsonManipulator/ShowCommand and
JsonConfigSource now use the default options; only ComposerRepository and Locker
genuinely pass 0.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

1 files changed, 1 insertions, 6 deletions

diff --git a/crates/shirabe/src/config/json_config_source.rs b/crates/shirabe/src/config/json_config_source.rs
index 28481db..5d81793 100644
--- a/crates/shirabe/src/config/json_config_source.rs
+++ b/crates/shirabe/src/config/json_config_source.rs
@@ -199,12 +199,7 @@ impl JsonConfigSource {
                     }
                 }
             }
-            self.file.write2(
-                config,
-                shirabe_php_shim::JSON_UNESCAPED_SLASHES
-                    | shirabe_php_shim::JSON_PRETTY_PRINT
-                    | shirabe_php_shim::JSON_UNESCAPED_UNICODE,
-            )?;
+            self.file.write(config)?;
         }
 
         match self.file.validate_schema(JsonFile::LAX_SCHEMA, None) {