refactor: narrow pub(crate) items to private

Porting mapped every PHP `protected` member onto `pub(crate)`, which is
wider than nearly all of them need. Each item demoted here is reached
only from the module that defines it, so the crate-wide visibility
conveyed nothing.

Every `pub(crate)` that survives has at least one reader in another
module of the same crate.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

3 files changed, 3 insertions, 3 deletions

diff --git a/crates/shirabe/src/json/json_file.rs b/crates/shirabe/src/json/json_file.rs
index 652f1d89..78ed76d7 100644
--- a/crates/shirabe/src/json/json_file.rs
+++ b/crates/shirabe/src/json/json_file.rs
@@ -516,7 +516,7 @@ impl JsonFile {
     /// @throws \UnexpectedValueException
     /// @throws ParsingException
     /// @return bool                      true on success
-    pub(crate) fn validate_syntax(json: &str, file: Option<&str>) -> anyhow::Result<bool> {
+    fn validate_syntax(json: &str, file: Option<&str>) -> anyhow::Result<bool> {
         // TODO(php-semantics): make json_decode() returns an error object with details.
         let error = match serde_json::from_str::<serde_json::Value>(json) {
             Ok(_) => {
diff --git a/crates/shirabe/src/json/json_manipulator.rs b/crates/shirabe/src/json/json_manipulator.rs
index 2fa4fe8f..766137ca 100644
--- a/crates/shirabe/src/json/json_manipulator.rs
+++ b/crates/shirabe/src/json/json_manipulator.rs
@@ -1546,7 +1546,7 @@ impl JsonManipulator {
         JsonFile::encode(&data)
     }
 
-    pub(crate) fn detect_indenting(&mut self) {
+    fn detect_indenting(&mut self) {
         self.indent = JsonFile::detect_indenting(Some(&self.contents));
     }
 }
diff --git a/crates/shirabe/src/json/json_validation_exception.rs b/crates/shirabe/src/json/json_validation_exception.rs
index cb7370d2..27661e38 100644
--- a/crates/shirabe/src/json/json_validation_exception.rs
+++ b/crates/shirabe/src/json/json_validation_exception.rs
@@ -5,7 +5,7 @@ use shirabe_php_shim::Exception;
 #[derive(Debug)]
 pub struct JsonValidationException {
     inner: Exception,
-    pub(crate) errors: Vec<String>,
+    errors: Vec<String>,
 }
 
 impl JsonValidationException {