Keep CF registry tests inside the workspace lint gate

The registry round-trip test used four bare unwrap calls. CI runs make lint with clippy::unwrap_used denied across every target and feature, so all three platforms rejected the current PR Head before reaching the remaining checks.

This decision gives each asserted registry invariant an explicit panic message without changing production behavior or weakening the lint policy.

Constraint: Test failures must still identify whether stable-ID conversion, round-trip decoding, put, or delete violated the registry contract.

Rejected: Allow clippy::unwrap_used in the test module | The workspace gate intentionally applies the rule to all targets.

Confidence: high

Scope-risk: narrow

Tested: WSL make lint; WSL exact CF registry batch test; cargo fmt --all -- --check; git diff --check.

Related: #421

Co-authored-by: OmX <omx@oh-my-codex.dev>
Signed-off-by: Xin.Zh <alexstocks@foxmail.com>

Author: AlexStocks

src/storage/src/batch.rs

@@ -587,10 +587,12 @@ mod tests {
         for cf_idx in ColumnFamilyIndex::ALL {
             assert_eq!(
                 cf_index_to_usize(cf_idx),
-                usize::try_from(cf_idx.stable_id()).unwrap()
+                usize::try_from(cf_idx.stable_id())
+                    .expect("registered stable CF ID should fit usize")
             );
             assert_eq!(
-                ColumnFamilyIndex::try_from(cf_idx.stable_id()).unwrap(),
+                ColumnFamilyIndex::try_from(cf_idx.stable_id())
+                    .expect("registered stable CF ID should round-trip"),
                 cf_idx
             );
         }
@@ -599,10 +601,10 @@ mod tests {
         let mut batch = BinlogBatch::new(append_log_fn);
         batch
             .put(ColumnFamilyIndex::VectorDataCF, b"physical-key", b"value")
-            .unwrap();
+            .expect("registry wire-ID test should put Vector data");
         batch
             .delete(ColumnFamilyIndex::ZsetsScoreCF, b"physical-key")
-            .unwrap();
+            .expect("registry wire-ID test should delete ZSet score data");
         assert_eq!(
             batch.entries[0].cf_idx,
             ColumnFamilyIndex::VectorDataCF.stable_id()