apl: programs-e2e + ⌿/⍀ glyph fix (+15 tests, 490/490)

programs-e2e.sx exercises the classic-algorithm shapes from
lib/apl/tests/programs/*.apl via the full pipeline (apl-run on
embedded source strings).  Tests include factorial-via-∇,
triangular numbers, sum-of-squares, prime-mask building blocks
(divisor counts via outer mod), named-fn composition,
dyadic max-of-two, and a single Newton sqrt step.

The original one-liners (e.g. primes' inline ⍵←⍳⍵) need parser
features we haven't built (compress-as-fn, inline assign) — the
e2e tests use multi-statement equivalents.  No file-reading
primitive in OCaml SX, so source is embedded.

Side-fix: ⌿ (first-axis reduce) and ⍀ (first-axis scan) were
silently skipped by the tokenizer — added to apl-glyph-set
and apl-parse-op-glyphs.

lib/apl/parser.sx

@@ -25,8 +25,9 @@
 ; Glyph classification sets
 ; ============================================================
 
-(define apl-parse-op-glyphs
-  (list "/" "\\" "¨" "⍨" "∘" "." "⍣" "⍤" "⍥" "@"))
+(define
+  apl-parse-op-glyphs
+  (list "/" "⌿" "\\" "⍀" "¨" "⍨" "∘" "." "⍣" "⍤" "⍥" "@"))
 
 (define
   apl-parse-fn-glyphs