Fix type-check-strict compiler match + deploy HS to WASM

- Compiler match for type-check-strict was still using old name type-check!
- Deploy updated HS source files to shared/static/wasm/sx/
- Sandbox runner validates 16/16 hard cases pass with cek-eval
  (no runtime let-binding hacks needed in WASM context)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

shared/static/wasm/sx/hs-runtime.sx

@@ -284,7 +284,7 @@
         (true true)))))
 
 (define
-  hs-type-check!
+  hs-type-check-strict
   (fn
     (value type-name)
     (if (nil? value) false (hs-type-check value type-name))))
@@ -295,7 +295,15 @@
 
 (define
   hs-falsy?
-  (fn (v) (or (nil? v) (= v false) (and (string? v) (= v "")))))
+  (fn
+    (v)
+    (cond
+      ((nil? v) true)
+      ((= v false) true)
+      ((and (string? v) (= v "")) true)
+      ((and (list? v) (= (len v) 0)) true)
+      ((= v 0) true)
+      (true false))))
 
 (define
   hs-matches?
@@ -311,6 +319,29 @@
   (fn
     (collection item)
     (cond
-      ((list? collection) (some (fn (x) (= x item)) collection))
-      ((string? collection) (string-contains? collection item))
-      (true false))))
+      ((nil? collection) false)
+      ((string? collection) (string-contains? collection (str item)))
+      ((list? collection)
+        (if
+          (= (len collection) 0)
+          false
+          (if
+            (= (first collection) item)
+            true
+            (hs-contains? (rest collection) item))))
+      (true false))))
+
+(define
+  hs-empty?
+  (fn
+    (v)
+    (cond
+      ((nil? v) true)
+      ((string? v) (= (len v) 0))
+      ((list? v) (= (len v) 0))
+      ((dict? v) (= (len (keys v)) 0))
+      (true false))))
+
+(define hs-first (fn (lst) (first lst)))
+
+(define hs-last (fn (lst) (last lst)))