Fix arg evaluation order + host interop gaps so reitit/selmer/honeysql run

Shaking the ring-app example's real library stack out against jolt surfaced a
batch of divergences from JVM Clojure, the biggest being evaluation order.

backend_scheme: call and recur arguments were emitted as bare Scheme operands,
so Chez's unspecified (right-to-left) order won out. Clojure evaluates left to
right, which selmer's reader loop relies on: (recur (add-node ... rdr) (read-char
rdr)) consumed a char early and dropped the first chars of every {{tag}}. Bind
operands to fresh temps in a let* (only when two or more can have side effects,
so hot calls over locals/consts stay un-wrapped). emit-ordered already did this
for collection literals; generalize it.

host-contract: syntax-quote now resolves the alias part of a qualified symbol
(impl/foo -> clojure.tools.logging.impl/foo) instead of leaving it bare, which
limped along via short-name matching until two loaded namespaces (reitit.impl,
clojure.tools.logging.impl) shared the short name and it broke.

collections: key-hash masks with bitwise-and, not fxand — jolt-hash is set!-
decorated per type (records return their own hash) and Chez's equal-hash can be a
bignum, so a key's hash isn't always a fixnum.

seq: even?/odd? handle bignums (JVM accepts any integer; the fxand crashed).

records: Keyword/Symbol .sym/.getName/.toString (honeysql's :clj branch reads
(.sym k)); Throwable .getMessage/.toString over a Chez condition.

host-static: __register-class-ctor!/__register-class-statics! so a host shim
(reitit.trie-jolt) can mirror a Java class.

natives-str: String.intern returns the string.

sqlite: jdbc.core fetch/fetch-one kebab-case column keys (the jolt-lang/db
convention; created_at -> :created-at).

io: a relative io/file path resolves against JOLT_PWD (the user's cwd), not the
repo root the launcher cd'd to — matches JVM cwd semantics, so config.edn loads.

cli: render an uncaught jolt throw (ex-info message + ex-data, or a condition)
instead of Chez's opaque "non-condition value" dump.

host/chez/collections.ss

@@ -84,7 +84,11 @@
 (define empty-hnode (make-hnode 0 (vector)))
 (define hmask #x3FFFFFFFFFFFFFF)       ; 58-bit non-negative hash window
 (define max-shift 55)
-(define (key-hash k) (fxand (jolt-hash k) hmask))
+;; bitwise-and (not fxand): jolt-hash is set!-decorated per type (records/inst/
+;; sorted return their own hash) and Chez's equal-hash can yield a BIGNUM, so a
+;; key's hash isn't guaranteed to be a fixnum. Masking with the 58-bit window via
+;; the generic bitwise-and always lands in fixnum range for the HAMT's fx slicing.
+(define (key-hash k) (bitwise-and (jolt-hash k) hmask))
 (define (chunk h shift) (fxand (fxsra h shift) 31))
 (define (bitpos h shift) (fxsll 1 (chunk h shift)))
 (define (popcount n) (let loop ((n n) (c 0)) (if (fx=? n 0) c (loop (fxand n (fx- n 1)) (fx+ c 1)))))