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, 1 deletions

diff --git a/crates/shirabe/src/command/repository_command.rs b/crates/shirabe/src/command/repository_command.rs
index bf000e4..d57a98d 100644
--- a/crates/shirabe/src/command/repository_command.rs
+++ b/crates/shirabe/src/command/repository_command.rs
@@ -380,7 +380,7 @@ impl RepositoryCommand {
                     .get("url")
                     .and_then(|v| v.as_string())
                     .map(|s| s.to_string())
-                    .unwrap_or_else(|| JsonFile::encode(repo, 448));
+                    .unwrap_or_else(|| JsonFile::encode(repo));
                 io.write(&format!("[{}] <info>{}</info> {}", name, r#type, url));
             }
         }