fix(json): propagate JsonFile::encode errors instead of unwrapping

PHP's JsonFile::encode throws a RuntimeException when json_encode fails; the
port swallowed that into an .unwrap() marked TODO(phase-c). Return
anyhow::Result from encode/encode_with_options and propagate at every call
site (print_table and list_repositories become Result-returning to carry it).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/crates/shirabe/tests/repository/vcs_repository_test.rs b/crates/shirabe/tests/repository/vcs_repository_test.rs
index 9ae3eac4..79d40a5d 100644
--- a/crates/shirabe/tests/repository/vcs_repository_test.rs
+++ b/crates/shirabe/tests/repository/vcs_repository_test.rs
@@ -60,7 +60,7 @@ fn set_up() -> Option<SetUp> {
     // add composed tag & master branch
     write_file(
         "composer.json",
-        &shirabe::json::JsonFile::encode(&composer(None)),
+        &shirabe::json::JsonFile::encode(&composer(None)).unwrap(),
     );
     exec(&["add", "composer.json"]);
     exec(&["commit", "-m", "addcomposer"]);
@@ -79,7 +79,7 @@ fn set_up() -> Option<SetUp> {
     exec(&["checkout", "master"]);
     write_file(
         "composer.json",
-        &shirabe::json::JsonFile::encode(&composer(Some("1.0.0"))),
+        &shirabe::json::JsonFile::encode(&composer(Some("1.0.0"))).unwrap(),
     );
     exec(&["add", "composer.json"]);
     exec(&["commit", "-m", "addversion"]);
@@ -105,7 +105,7 @@ fn set_up() -> Option<SetUp> {
     // update master to 2.0
     write_file(
         "composer.json",
-        &shirabe::json::JsonFile::encode(&composer(Some("2.0.0"))),
+        &shirabe::json::JsonFile::encode(&composer(Some("2.0.0"))).unwrap(),
     );
     exec(&["add", "composer.json"]);
     exec(&["commit", "-m", "bump-version"]);