feat: Add pipe parameter validation and fix VM call frame

Adds a check within the `PipeHook` to ensure the number of input streams
provided to a `pipe` operation matches the number of parameters expected
by the associated lambda function. This prevents runtime errors and
provides a clearer compile-time diagnostic.

Additionally, this commit corrects the order in which a `CallFrame` is
pushed onto the VM's frame stack. By pushing the frame earlier, it
ensures that slow-path `unpack` operations have access to a valid frame,
preventing "No call frame" errors.

examples/data_stream_print.myc

@@ -1,8 +1,23 @@
 ;; Skip: data output to stdout
 (do
-  (def ohlc (create-m1-stream "EURUSD"))
+  (def EURUSD (create-m1-stream "EURUSD" (date "2020-01-03 09:30:00") (date "2020-01-03 17:30:00")))
+  (def GER40 (create-m1-stream "GER40" (date "2020-01-03 09:30:00") (date "2020-01-03 17:30:00")))
 
   ;; Sink: print returns void, so nothing is propagated downstream
-  (pipe ohlc
-    (fn [bar]
-      (print (.close bar)))))
+
+  (def cnt 1)
+  (def gs (series 2))
+
+;IDEE (pipe lookback [EURUSD acc] --> series acc
+  (pipe [EURUSD GER40]
+    (fn [eu ge]
+      (do
+        (def dax (.close ge))
+        (push gs dax)
+        (def eur (- dax (gs 1)))
+        (print cnt ": dax=" eur " (" (/ eur (.close eu)) "$)" )
+        (assign cnt (+ cnt 1))
+      )
+    )
+  )
+)