core: jolt-vzm — every? short-circuits lazily (boundary audit)

Audited all 43 realize-for-iteration call sites. Result: every? was the one
transformer-style leak — it realized the whole coll before iterating, so
(every? pos? (range)) hung instead of short-circuiting on the first false
(Clojure short-circuits). Now walks lazy input cell-by-cell via realize-ls and
stops at the first false; not-every? inherits the fix.

Everything else is a legitimate realization boundary (reverse/sort/into/vec/set/
list/str-join/doall/apply/transient/to-array/hash-*/shuffle/rand-nth — must see
all elements) or forces only finite/concrete input (drop-while's eager branch,
cycle's seed, nth's concrete branch). some is already lazy (overlay). realized?
reads the :realized flag without forcing. first/nth/take pull only as far as
needed.

Regression: deadlined (every?/not-every? pos? (range)) cases — would hang if the
leak returned.

Gate: conformance 249x3, lazy-infinite 42/42, fixpoint, self-host, specs+unit green.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

test/integration/lazy-infinite-test.janet

@@ -50,6 +50,8 @@
    ["take 4 interleave range iterate"     "(quote (0 10 1 11))"   "(take 4 (interleave (range) (iterate inc 10)))"]
    ["take 4 reductions + range"           "(quote (0 1 3 6))"     "(take 4 (reductions + (range)))"]
    ["take 3 tree-seq infinite"            "(quote (0 0 0))"       "(take 3 (tree-seq (fn [_] true) (fn [n] [n]) 0))"]
+   ["every? short-circuits on inf"        "false"                 "(every? pos? (range))"]
+   ["not-every? short-circuits on inf"    "true"                  "(not-every? pos? (range))"]
    ["take 3 partition 2 range"            "(quote ((0 1) (2 3) (4 5)))" "(take 3 (partition 2 (range)))"]
    ["take 3 partition-all 2 range"        "(quote ((0 1) (2 3) (4 5)))" "(take 3 (partition-all 2 (range)))"]
    ["take 3 map-indexed vector range"     "(quote ([0 0] [1 1] [2 2]))" "(take 3 (map-indexed vector (range)))"]