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, 3 insertions, 7 deletions

diff --git a/crates/shirabe/src/advisory/auditor.rs b/crates/shirabe/src/advisory/auditor.rs
index af54d06..ffe1a12 100644
--- a/crates/shirabe/src/advisory/auditor.rs
+++ b/crates/shirabe/src/advisory/auditor.rs
@@ -168,13 +168,9 @@ impl Auditor {
                 ),
             );
 
-            io.write(&JsonFile::encode_with_indent(
-                &PhpMixed::Array(json.into_iter().map(|(k, v)| (k, Box::new(v))).collect()),
-                shirabe_php_shim::JSON_UNESCAPED_SLASHES
-                    | shirabe_php_shim::JSON_PRETTY_PRINT
-                    | shirabe_php_shim::JSON_UNESCAPED_UNICODE,
-                JsonFile::INDENT_DEFAULT,
-            ));
+            io.write(&JsonFile::encode(&PhpMixed::Array(
+                json.into_iter().map(|(k, v)| (k, Box::new(v))).collect(),
+            )));
 
             return Ok(audit_bitmask);
         }