fix(wasm): multi-module FuncRef resolution and void function handling (v0.4.45)

- Per-module func_map snapshots: FuncRef(id) is only unique within a module,
  so each module now gets its own FuncId→wasm_idx mapping
- Void function tracking: void functions push TAG_UNDEFINED after call for
  stack consistency
- Missing argument padding: optional params padded with TAG_UNDEFINED

Author: proggeramlug

CLAUDE.md

@@ -8,7 +8,7 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 
 Perry is a native TypeScript compiler written in Rust that compiles TypeScript source code directly to native executables. It uses SWC for TypeScript parsing and Cranelift for code generation.
 
-**Current Version:** 0.4.44
+**Current Version:** 0.4.45
 
 ## Workflow Requirements
 
@@ -140,6 +140,9 @@ Projects can list npm packages to compile natively instead of routing to V8. Con
 
 ## Recent Changes
 
+### v0.4.45
+- fix(wasm): multi-module `FuncRef` resolution — per-module func_map snapshots prevent cross-module FuncId collisions; void function tracking pushes TAG_UNDEFINED for stack consistency; missing arguments padded with TAG_UNDEFINED for optional params
+
 ### v0.4.44
 - fix: `obj[numericKey]` on `Record<number, T>` returned garbage — `IndexGet` treated all numeric indices as array offsets; now detects non-array objects in both the union-index dispatch path and the plain-index fallback, converting numeric keys to strings via `js_jsvalue_to_string` for property lookup. Also fixed `is_string_index_expr_get` treating all `PropertyGet` as string-producing (broke `obj[classField]` where field is number).
 - fix: `!('key' in obj)` always returned false — `in` operator returns NaN-boxed TAG_TRUE/TAG_FALSE but `!` used float comparison (NaN != 0.0 is true); added `Expr::In` to `needs_truthy_check`. Root cause of ethkit `Contract()` SIGSEGV: provider detection ternary evaluated wrong branch, setting `provider` to `undefined`.

Cargo.lock

@@ -85,7 +85,7 @@ opt-level = "s"       # Optimize for size in stdlib
 opt-level = 3
 
 [workspace.package]
-version = "0.4.44"
+version = "0.4.45"
 edition = "2021"
 license = "MIT"
 repository = "https://github.com/PerryTS/perry"