Added import-side array coverage and cleaned up the generator/runtime:

- New JS imports and runtime tests for arrays: `Tests/BridgeJSRuntimeTests/ImportArrayAPIs.swift` and added roundtrip/length checks in `Tests/BridgeJSRuntimeTests/ImportAPITests.swift` with JS implementations in `Tests/prelude.mjs`.
- Fixed import codegen to avoid unused return warnings and support stack-only returns: `Plugins/BridgeJS/Sources/BridgeJSCore/ImportTS.swift` now skips `ret` binding when ABI return is absent.
- Allowed zero-parameter lifting fragments in JS glue to handle stack-returning arrays: `Plugins/BridgeJS/Sources/BridgeJSLink/BridgeJSLink.swift`.
- Regenerated BridgeJS artifacts for runtime tests.

Tests: `SWIFT_SDK_ID=DEVELOPMENT-SNAPSHOT-2025-11-03-a-wasm32-unknown-wasip1 make unittest` (all 20 suites / 96 tests passing).

Author: kateinoigakukun

Plugins/BridgeJS/Sources/BridgeJSCore/ImportTS.swift

@@ -189,6 +189,7 @@ public struct ImportTS {
         }
 
         func call(returnType: BridgeType) throws {
+            let liftingInfo = try returnType.liftingReturnInfo(context: context)
             // Build function call expression
             let callExpr = FunctionCallExprSyntax(
                 calledExpression: ExprSyntax("\(raw: abiName)"),
@@ -206,6 +207,9 @@ public struct ImportTS {
             } else if returnType.usesSideChannelForOptionalReturn() {
                 // Side channel returns don't need "let ret ="
                 body.append(CodeBlockItemSyntax(item: .stmt(StmtSyntax(ExpressionStmtSyntax(expression: callExpr)))))
+            } else if liftingInfo.valueToLift == nil {
+                // Value is returned via stacks, no direct ABI return
+                body.append(CodeBlockItemSyntax(item: .stmt(StmtSyntax(ExpressionStmtSyntax(expression: callExpr)))))
             } else {
                 body.append("let ret = \(raw: callExpr)")
             }