Refactor Examples to use assert_eq

This commit updates all example files to use `assert_eq!` for verifying
output, replacing the previous `Output:` comments. This change makes the
examples more robust and self-testing.

The benchmark results in some examples have also been slightly adjusted,
reflecting minor performance variations after the refactoring.

Additionally, a runtime panic handling mechanism has been introduced in
the VM for function calls, which improves error reporting for unexpected
panics.

examples/pipeline_script_ticker.myc

@@ -1,6 +1,5 @@
-;; Benchmark: 2.1us
-;; Benchmark-Repeat: 966
-;; Output: <StreamNode>
+;; Benchmark: 2.7us
+;; Benchmark-Repeat: 749
 
 (do
   ;; Set the random seed to match the existing test output exactly
@@ -12,13 +11,13 @@
 
   ;; The candle generator reacting to the ticker
   (def last-close 100.0)
-  
+
   (def src1
     (pipe [ticker]
       (fn [_]
         (do
           ; Matches Rust: (rng.f64() - 0.5) * 2.0
-          (def change (* (- (random) 0.5) 2.0)) 
+          (def change (* (- (random) 0.5) 2.0))
           (def open last-close)
           (def high (+ open (abs (* (random) 2.0))))
           (def low (- open (abs (* (random) 2.0))))
@@ -44,6 +43,6 @@
       )
     )
   )
-  
-  my_indicator
+
+  (assert-eq :StreamNode (type-of my_indicator))
 )