Ports the full # dispatch to the portable reader: #{} sets, #() anon-fns, #?/#?@
reader-conditionals, #_ discard, #' var-quote, #"" regex, #inst/#uuid/#tag tagged
literals, ## symbolic (Inf/-Inf/NaN), and #^ deprecated metadata. With this the
reader is feature-complete except position tracking + wire-in (inc 5d).
Reader-conditionals resolve clause-order against a portable feature set (atom
#{:jolt :default}); #? -> :skip / :form, #?@ -> :splice (the control protocol from
5b). #() uses the two-pass %-scan (collect indices, then rebuild replacing %N/%/%&
with gensym params) over the form tree via the jolt.host form-* contract. Three
host constructors added: form-make-set, form-make-tagged, form-gensym-name.
reader-parity 149/149. #() compares modulo gensym (canonicalize #-suffixed param
names by first-occurrence order — the two readers gensym different names but the
structure + %-mapping must match). ##NaN checked by the NaN!=NaN property. Full jpm
gate green (prelude pre-warmed). jolt-9ufe.
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